+ Updates for missing identifiers

docs/baseunix.xml

@@ -1124,6 +1124,50 @@ implement the functionality in this unit for the new platform.
 <short>Pointer to <link id="TOff64"/> type.</short>
 </element>
 
+<element name="MAP_PRIVATE">
+<short><link id="FpMMap"/> map type: Changes are private</short>
+</element>
+<element name="MAP_ANONYMOUS">
+<short><link id="FpMMap"/> map type: Don't use a file</short>
+</element>
+<element name="MAP_GROWSDOWN">
+<short><link id="FpMMap"/> option: Memory grows downward (like a stack)</short>
+</element>
+<element name="MAP_DENYWRITE">
+<short><link id="FpMMap"/> option: Ignored.</short>
+</element>
+<element name="MAP_EXECUTABLE">
+<short><link id="FpMMap"/> option: Ignored.</short>
+</element>
+<element name="MAP_LOCKED">
+<short><link id="FpMMap"/> option: lock the pages in memory.</short>
+</element>
+<element name="MAP_NORESERVE">
+<short><link id="FpMMap"/> option: Do not reserve swap pages for this memory.</short>
+</element>
+<element name="MAP_SHARED">
+<short><link id="FpMMap"/> map type: Share changes</short>
+</element>
+<element name="MAP_TYPE">
+<short><link id="FpMMap"/> map type: Bitmask for type of mapping</short>
+</element>
+<element name="MAP_FIXED">
+<short><link id="FpMMap"/> map type: Interpret addr exactly</short>
+</element>
+
+<element name="PROT_READ">
+<short><link id="FpMMap"/> memory access: page can be read</short>
+</element>
+<element name="PROT_WRITE">
+<short><link id="FpMMap"/> memory access: page can be written</short>
+</element>
+<element name="PROT_EXEC">
+<short><link id="FpMMap"/> memory access: page can be executed</short>
+</element>
+<element name="PROT_NONE">
+<short><link id="FpMMap"/> memory access: page can not be accessed</short>
+</element>
+
 <element name="utsname">
 <short>Record used to return kernel information in <link id="fpUName"/> function.</short>
 <descr>
@@ -1536,12 +1580,12 @@ directly.
 
 <!-- constant Visibility: default -->
 <element name="WNOHANG">
-<short><link id="fpWaitpid"/> option: Do not wait for processes to terminate.</short>
+<short><link id="#rtl.baseunix.fpWaitpid"/> option: Do not wait for processes to terminate.</short>
 </element>
 
 <!-- constant Visibility: default -->
 <element name="WUNTRACED">
-<short><link id="fpWaitpid"/> option: Also report children wich were stopped but not yet reported</short>
+<short><link id="#rtl.baseunix.fpWaitpid"/> option: Also report children wich were stopped but not yet reported</short>
 </element>
 
 <element name="F_GetFd">
@@ -2043,7 +2087,7 @@ entry.</dd>
 </dl>
 </errors>
 <seealso>
-<link id="#rtl.unix.fpSymLink"/>
+<link id="fpSymLink"/>
 <link id="fpUnLink"/>
 </seealso>
 <example file="bunixex/ex21"/>
@@ -3159,7 +3203,7 @@ directory containing it.</dd>
 </errors>
 <seealso>
 <link id="FpLink"/>
-<link id="#rtl.unix.FpSymLink"/>
+<link id="FpSymLink"/>
 </seealso>
 </element>
 
@@ -3274,7 +3318,7 @@ Extended error information can be retrieved using <link id="fpGetErrno"/>.
 </errors>
 <seealso>
 <link id="FpStat"/>
-<link id="#rtl.unix.FpLStat"/>
+<link id="FpLStat"/>
 </seealso>
 <example file="bunixex/ex28"/>
 </element>
@@ -3301,7 +3345,7 @@ Extended error information can be retrieved using <link id="fpGetErrno"/>.
 </errors>
 <seealso>
 <link id="FpStat"/>
-<link id="#rtl.unix.FpLStat"/>
+<link id="FpLStat"/>
 </seealso>
 <example file="bunixex/ex28"/>
 </element>
@@ -4224,6 +4268,358 @@ call this function.
 </seealso>
 </element>
 
+<!-- function Visibility: default -->
+<element name="FpMMap">
+<short>Create memory map of a file</short>
+<descr>
+<p>
+<var>FpMMap</var> maps or unmaps files or devices into memory. The different
+arguments determine what and how the file is mapped:
+</p>
+<dl>
+<dt>adr</dt>
+<dd> Address where to mmap the device. This address is a hint,
+and may not be followed.</dd>
+<dt>len</dt><dd> Size (in bytes) of area to be mapped.</dd>
+<dt>prot</dt>
+<dd>
+<p> Protection of mapped memory. This is a OR-ed combination of the
+following constants:</p>
+<dl>
+<dt>PROT_EXEC</dt><dd> The memory can be executed.</dd>
+<dt>PROT_READ</dt><dd> The memory can be read.</dd>
+<dt>PROT_WRITE</dt><dd> The memory can be written.</dd>
+<dt>PROT_NONE</dt><dd> The memory can not be accessed.</dd>
+</dl>
+</dd>
+<dt>flags</dt><dd><p>Contains some options for the mmap call. It is an OR-ed
+combination of the following constants:</p>
+<dl>
+<dt>MAP_FIXED</dt>
+<dd> Do not map at another address than the given address. If the
+address cannot be used, <var>MMap</var> will fail.</dd>
+<dt>MAP_SHARED</dt>
+<dd> Share this map with other processes that map this object.</dd>
+<dt>MAP_PRIVATE</dt>
+<dd> Create a private map with copy-on-write semantics.</dd>
+<dt>MAP_ANONYMOUS</dt>
+<dd> <var>fd</var> does not have to be a file descriptor.</dd>
+</dl>
+<p>
+One of the options <var>MAP_SHARED</var> and <var>MAP_PRIVATE</var> must be present,
+but not both at the same time.
+</p>
+</dd>
+<dt>fd</dt><dd> File descriptor from which to map.</dd>
+<dt>off</dt><dd> Offset to be used in file descriptor <var>fd</var>.</dd>
+</dl>
+<p>
+The function returns a pointer to the mapped memory, or a -1 in case of en
+error.
+</p>
+</descr>
+<errors>
+<p>
+On error, -1 is returned and extended error information is returned by the <link id="fpGetErrno">FpGetErrno</link> function. 
+</p>
+<dl>
+<dt>Sys_EBADF</dt>
+<dd> <var>fd</var> is not a valid file descriptor and 
+<var>MAP_ANONYMOUS</var> was not specified.</dd>
+<dt>Sys_EACCES</dt>
+<dd><var>MAP_PRIVATE</var> was specified, but <var>fd</var> is not open for
+reading. Or <var>MAP_SHARED</var> was asked and <var>PROT_WRITE</var> is  set, fd
+is not open for writing</dd>
+<dt>Sys_EINVAL</dt>
+<dd> One of the record fields <var>Start</var>, <var>length</var> or
+<var>offset</var> is invalid.</dd>
+<dt>Sys_ETXTBUSY</dt>
+<dd><var>MAP_DENYWRITE</var> was set but the object specified
+by fd is open for writing.</dd>
+<dt>Sys_EAGAIN</dt>
+<dd><var>fd</var> is locked, or too much memory is locked.</dd>
+<dt>Sys_ENOMEM</dt>
+<dd> Not enough memory for this operation.</dd>
+</dl>
+</errors>
+<seealso>
+<link id="FpMUnMap"/>
+</seealso>
+<example file="unixex/ex66"/>
+</element>
+
+<!-- function Visibility: default -->
+<element name="Fpmunmap">
+<short>Unmap previously mapped memory block</short>
+<descr>
+<p>
+<var>FpMUnMap</var> unmaps the memory block of size <var>Len</var>, pointed to by 
+<var>Adr</var>, which was previously allocated with <link id="FpMMap"/>.
+</p>
+<p>
+The function returns <var>True</var> if successful, <var>False</var> otherwise.
+</p>
+<p>
+For an example, see <link id="FpMMap"/>.
+</p>
+</descr>
+<errors>
+In case of error the function returns a nonzero value, 
+extended error information is returned by the <link id="fpGetErrno">FpGetErrno</link> function. 
+See <link id="FpMMap"/> for possible error values.
+</errors>
+<seealso>
+<link id="FpMMap"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="fpLstat">
+<short>Return information about symbolic link. Do not follow the link</short>
+<descr>
+<var>FpLstat</var> gets information about the link specified in <var>Path</var>
+(or <var>FileName</var>, and stores it in <var>Info</var>, which points to a
+record of  type <var>TStat</var>. Contrary to <link id="FpFStat">FpFstat</link>, it stores
+information about the link, not about the file the link points to.
+The function returns zero if the call was succesful, a nonzero return value
+indicates failure.
+failed.
+</descr>
+<errors>
+<p>
+Extended error information is returned  by the <link id="fpGetErrno">FpGetErrno</link>
+function.
+</p>
+<dl>
+<dt>sys_enoent</dt><dd> <var>Path</var> does not exist.</dd>
+</dl>
+</errors>
+<seealso>
+<link id="FpFStat"/>
+<link id="#rtl.unix.StatFS"/>
+</seealso>
+<example file="unixex/ex29"/>
+</element>
+
+
+<!-- function Visibility: default -->
+<element name="fpNice">
+<short>Set process priority</short>
+<descr>
+<p>
+<var>Nice</var> adds <var>-N</var> to the priority of the running process. The lower the
+priority numerically, the less the process is favored.
+Only the superuser can specify a negative <var>N</var>, i.e. increase the rate at
+which the process is run.
+</p>
+<p>
+If the function is succesful, zero is returned. On error, a nonzero value is returned. 
+</p>
+</descr>
+<errors>
+<p>
+Extended error information is returned by the <link id="fpGetErrno">FpGetErrno</link> function. 
+</p>
+<dl>
+<dt>sys_eperm</dt><dd> A non-superuser tried to specify a negative <var>N</var>, i.e.
+do a priority increase.</dd>
+</dl>
+</errors>
+<seealso>
+<link id="FpGetPriority"/>
+<link id="FpSetPriority"/>
+</seealso>
+<example file="unixex/ex15"/>
+</element>
+
+<!-- function Visibility: default -->
+<element name="fpGetPriority">
+<short>Return process priority</short>
+<descr>
+<p>
+GetPriority returns the priority with which a process is running.
+Which process(es) is determined by the <var>Which</var> and <var>Who</var> variables.
+<var>Which</var> can be one of the pre-defined <var>Prio_Process</var>,
+<var>Prio_PGrp</var>, <var>Prio_User</var>, in which case <var>Who</var> is the process ID, Process group ID or
+User ID, respectively.
+</p>
+<p>
+For an example, see <link id="FpNice"/>.
+</p>
+</descr>
+<errors>
+<p>
+Error information is returned solely by the <link id="fpGetErrno">FpGetErrno</link>
+function:  a priority can be a positive or negative value.
+</p>
+<dl>
+<dt>sys_esrch</dt>
+<dd> No process found using <var>which</var> and <var>who</var>. </dd>
+<dt>sys_einval</dt>
+<dd> <var>Which</var> was not one of <var>Prio_Process</var>,
+<var>Prio_Grp</var> or <var>Prio_User</var>.</dd>
+</dl>
+</errors>
+<seealso>
+<link id="FpSetPriority"/>
+<link id="FpNice"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="fpSetPriority">
+<short>Set process priority</short>
+<descr>
+<p>
+<var>fpSetPriority</var> sets the priority with which a process is running.
+Which process(es) is determined by the <var>Which</var> and <var>Who</var> variables.
+<var>Which</var> can be one of the pre-defined constants:
+</p>
+<dl>
+<dt>Prio_Process</dt><dd><var>Who</var> is interpreted as process ID</dd>
+<dt>Prio_PGrp</dt><dd><var>Who</var> is interpreted as process group ID</dd>
+<dt>Prio_User</dt><dd><var>Who</var> is interpreted as user ID</dd>
+</dl>
+<p>
+<var>Prio</var> is a value in the range -20 to 20.
+</p>
+<p>
+For an example, see <link id="FpNice"/>.
+</p>
+<p>
+The function returns zero on success, -1 on failure
+</p>
+</descr>
+<errors>
+<p>
+Extended error information is returned  by the <link id="fpGetErrno">FpGetErrno</link>
+function.
+</p>
+<dl>
+<dt>sys_esrch</dt>
+<dd>No process found using <var>which</var> and <var>who</var>.</dd>
+<dt>sys_einval</dt>
+<dd> <var>Which</var> was not one of <var>Prio_Process</var>,
+<var>Prio_Grp</var> or <var>Prio_User</var>.</dd>
+<dt>sys_eperm</dt>
+<dd>A process was found, but neither its effective or real
+user ID match the effective user ID of the caller.</dd>
+<dt>sys_eacces</dt>
+<dd>A non-superuser tried to a priority increase.</dd>
+</dl>
+</errors>
+<seealso>
+<link id="FpGetPriority"/>
+<link id="FpNice"/>
+</seealso>
+</element>
+
+
+
+<!-- function Visibility: default -->
+<element name="fpSymlink">
+<short>Create a symbolic link</short>
+<descr>
+<p>
+<var>SymLink</var> makes <var>NewName</var> point to the file in
+<var>OldName</var>, which doesn't necessarily exist. The two files 
+DO NOT have the same inode number. This is known as a 'soft' link.
+</p>
+<p>The permissions of the link are irrelevant, as they are not used when
+following the link. Ownership of the file is only checked in case of removal
+or renaming of the link.
+</p>
+<p>
+The function returns zero if the call was succesful, a nonzero value if the call
+failed.
+</p>
+</descr>
+<errors>
+<p>
+Extended error information is returned  by the <link id="fpGetErrno">FpGetErrno</link>
+function.
+</p>
+<dl>
+<dt>sys_eperm</dt>
+<dd>The filesystem containing oldpath and newpath does not
+support linking files.</dd>
+<dt>sys_eaccess</dt>
+<dd>Write access for the directory containing <var>Newpath</var>
+is disallowed, or one of the directories in <var>OldPath</var> or
+<var>NewPath</var> has no search (=execute) permission.</dd>
+<dt>sys_enoent</dt>
+<dd>A directory entry in <var>OldPath</var> or <var>NewPath</var> does
+not exist or is a symbolic link pointing to a non-existent directory.</dd>
+<dt>sys_enotdir</dt>
+<dd>A directory entry in <var>OldPath</var> or <var>NewPath</var> is
+nor a directory.</dd>
+<dt>sys_enomem</dt><dd>Insufficient kernel memory.</dd>
+<dt>sys_erofs</dt><dd>The files are on a read-only filesystem.</dd>
+<dt>sys_eexist</dt><dd><var>NewPath</var> already exists.</dd>
+<dt>sys_eloop</dt>
+<dd> <var>OldPath</var> or <var>NewPath</var> has a reference to a circular
+symbolic link, i.e. a symbolic link, whose expansion points to itself.
+</dd>
+<dt>sys_enospc</dt>
+<dd>The device containing <var>NewPath</var> has no room for another entry.</dd>
+</dl>
+</errors>
+<seealso>
+<link id="FpLink"/>
+<link id="FpUnLink"/>
+<link id="FpReadLink"/>
+</seealso>
+<example file="unixex/ex22"/>
+</element>
+
+<!-- function Visibility: default -->
+<element name="fpReadLink">
+<short>Read destination of symbolic link</short>
+<descr>
+<p>
+<var>FpReadLink</var> returns the file the symbolic link <var>name</var> is pointing
+to. The first form of this function accepts a buffer <var>linkname</var> of
+length <var>maxlen</var> where the filename will be stored. It returns the
+actual number of characters stored in the buffer.
+</p>
+<p>
+The second form of the function returns simply the name of the file.
+</p>
+</descr>
+<errors>
+<p>
+On error, the first form of the function returns -1; the second one returns
+an empty string.
+Extended error information is returned  by the <link id="fpGetErrno">FpGetErrno</link>
+function.
+</p>
+<dl>
+<dt>SYS_ENOTDIR</dt>
+<dd>A part of the path in <var>Name</var> is not a directory.</dd>
+<dt>SYS_EINVAL</dt>
+<dd>maxlen is not positive, or the  file is not a symbolic link.</dd>
+<dt>SYS_ENAMETOOLONG</dt>
+<dd>A pathname, or a component of a pathname, was too long.</dd>
+<dt>SYS_ENOENT</dt>
+<dd>the link <var>name</var> does not exist.</dd>
+<dt>SYS_EACCES</dt>
+<dd>No permission to search a directory in the path</dd>
+<dt>SYS_ELOOP</dt>
+<dd>Too many symbolic links were encountered in  translating the pathname.</dd>
+<dt>SYS_EIO</dt>
+<dd>An I/O error occurred while reading from the file system.</dd>
+<dt>SYS_EFAULT</dt>
+<dd>The buffer is not part of the the process's memory space.</dd>
+<dt>SYS_ENOMEM</dt>
+<dd>Not enough kernel memory was available.</dd>
+</dl>
+</errors>
+<seealso>
+<link id="FpSymLink"/>
+</seealso>
+<example file="unixex/ex62"/>
+</element>
+
 </module> <!-- BaseUnix -->
 </package>
 </fpdoc-descriptions>

docs/math.xml

@@ -209,7 +209,7 @@ is used in functions that accept an array of values of arbitrary length.
 </element>
 
 <element name="arccos">
-<short></short>
+<short>Return inverse cosine</short>
 <descr>
 <var>Arccos</var> returns the inverse cosine of its argument <var>x</var>. The
 argument <var>x</var> should lie between -1 and 1 (borders included). 
@@ -228,7 +228,7 @@ If the argument <var>x</var> is not in the allowed range, an
 </element>
 
 <element name="arcosh">
-<short></short>
+<short>Return inverse hyperbolic cosine</short>
 <descr>
 <var>Arcosh</var> returns the inverse hyperbolic cosine of its argument <var>x</var>. 
 The argument <var>x</var> should be larger than 1. 
@@ -252,7 +252,7 @@ exception is raised.
 </element>
 
 <element name="arcsin">
-<short></short>
+<short>Return inverse sine</short>
 <descr>
 <var>Arcsin</var> returns the inverse sine of its argument <var>x</var>. The
 argument <var>x</var> should lie between -1 and 1. 
@@ -272,7 +272,7 @@ exception is raised.
 
 
 <element name="arctan2">
-<short></short>
+<short>Return arctangent of (y/x)</short>
 <descr>
 <var>arctan2</var> calculates <var>arctan(y/x)</var>, and returns an angle in the
 correct quadrant. The returned angle will be in the range $-\pi$ to
@@ -296,7 +296,7 @@ If <var>x</var> is zero, an overflow error will occur.
 </element>
 
 <element name="arsinh">
-<short></short>
+<short>Return inverse hyperbolic sine</short>
 <descr>
 <var>arsinh</var> returns the inverse hyperbolic sine of its argument <var>x</var>. 
 
@@ -317,7 +317,7 @@ None.
 
 
 <element name="artanh">
-<short></short>
+<short>Return inverse hyperbolic tangent</short>
 <descr>
 <var>artanh</var> returns the inverse hyperbolic tangent of its argument <var>x</var>,
 where <var>x</var> should lie in the interval [-1,1], borders included.
@@ -339,7 +339,7 @@ exception is raised.
 
 
 <element name="ceil">
-<short></short>
+<short>Return the lowest integer number greater than or equal to argument</short>
 <descr>
 <var>Ceil</var> returns the lowest integer number greater than or equal to <var>x</var>.
 The absolute value of <var>x</var> should be less than <var>maxint</var>.
@@ -355,7 +355,7 @@ occur.
 </element>
 
 <element name="cosh">
-<short></short>
+<short>Return hyperbolic cosine</short>
 <descr>
 <var>Cosh</var> returns the hyperbolic cosine of it's argument {x}.
 </descr>
@@ -372,7 +372,7 @@ None.
 
 
 <element name="cotan">
-<short></short>
+<short>Return cotangent</short>
 <descr>
 <var>Cotan</var> returns the cotangent of it's argument <var>x</var>. <var>x</var> should
 be different from zero.
@@ -388,7 +388,7 @@ If <var>x</var> is zero then a overflow error will occur.
 
 
 <element name="cycletorad">
-<short></short>
+<short>Convert cycle angle to radians angle</short>
 <descr>
 <var>Cycletorad</var> transforms it's argument <var>cycle</var>
 (an angle expressed in cycles) to radians.
@@ -409,7 +409,7 @@ None.
 
 
 <element name="degtograd">
-<short></short>
+<short>Convert degree angle to grads angle</short>
 <descr>
 <var>Degtograd</var> transforms it's argument <var>deg</var> (an angle in degrees)
 to grads.
@@ -431,7 +431,7 @@ None.
 
 
 <element name="degtorad">
-<short></short>
+<short>Convert degree angle to radians angle.</short>
 <descr>
 <var>Degtorad</var> converts it's argument <var>deg</var> (an angle in degrees) to
 radians.
@@ -453,7 +453,7 @@ None.
 
 
 <element name="floor">
-<short></short>
+<short>Return the largest integer smaller than or equal to argument</short>
 <descr>
 <var>Floor</var> returns the largest integer smaller than or equal to <var>x</var>.
 The absolute value of <var>x</var> should be less than <var>maxint</var>.
@@ -469,7 +469,7 @@ If <var>x</var> is larger than <var>maxint</var>, an overflow will occur.
 
 
 <element name="frexp">
-<short></short>
+<short>Return mantissa and exponent.</short>
 <descr>
 <var>Frexp</var> returns the mantissa and exponent of it's argument
 <var>x</var> in <var>mantissa</var> and <var>exponent</var>.
@@ -484,7 +484,7 @@ None
 
 
 <element name="gradtodeg">
-<short></short>
+<short>Convert grads angle to degrees angle</short>
 <descr>
 <var>Gradtodeg</var> converts its argument <var>grad</var> (an angle in grads)
 to degrees.
@@ -507,7 +507,7 @@ None.
 
 
 <element name="gradtorad">
-<short></short>
+<short>Convert grads angle to radians angle</short>
 <descr>
 <var>Gradtorad</var> converts its argument <var>grad</var> (an angle in grads)
 to radians.
@@ -530,7 +530,7 @@ None.
 
 
 <element name="hypot">
-<short></short>
+<short>Return hypotenuse of triangle</short>
 <descr>
 <var>Hypot</var> returns the hypotenuse of the triangle where the sides
 adjacent to the square angle have lengths <var>x</var> and <var>y</var>.
@@ -547,7 +547,7 @@ None.
 
 
 <element name="intpower">
-<short></short>
+<short>Return integer power.</short>
 <descr>
 <var>Intpower</var> returns <var>base</var> to the power <var>exponent</var>,
 where exponent is an integer value.
@@ -564,9 +564,9 @@ overflow error will occur.
 
 
 <element name="ldexp">
-<short></short>
+<short>Return (2 to the power p) times x</short>
 <descr>
-<var>Ldexp</var> returns $2^p x$.
+<var>Ldexp</var> returns (2 to the power <var>p</var>) times <var>x</var>.
 </descr>
 <errors>
 None.
@@ -582,7 +582,7 @@ None.
 
 
 <element name="lnxp1">
-<short></short>
+<short>Return natural logarithm of 1+X</short>
 <descr>
 <var>Lnxp1</var> returns the natural logarithm of <var>1+X</var>. The result
 is more precise for small values of <var>x</var>. <var>x</var> should be larger
@@ -601,7 +601,7 @@ If $x\leq -1$ then an <var>EInvalidArgument</var> exception will be raised.
 </element>
 
 <element name="log10">
-<short></short>
+<short>Return 10-Based logarithm.</short>
 <descr>
 <var>Log10</var> returns the 10-base logarithm of <var>X</var>.
 </descr>
@@ -620,7 +620,7 @@ will occur.
 
 
 <element name="log2">
-<short></short>
+<short>Return 2-based logarithm</short>
 <descr>
 <var>Log2</var> returns the 2-base logarithm of <var>X</var>.
 </descr>
@@ -639,7 +639,7 @@ will occur.
 
 
 <element name="logn">
-<short></short>
+<short>Return N-based logarithm.</short>
 <descr>
 <var>Logn</var> returns the n-base logarithm of <var>X</var>.
 </descr>
@@ -657,7 +657,7 @@ will occur.
 </element>
 
 <element name="max">
-<short></short>
+<short>Return largest of 2 values</short>
 <descr>
 <var>Max</var> returns the maximum of <var>Int1</var> and <var>Int2</var>.
 </descr>
@@ -673,13 +673,16 @@ None.
 </element>
 
 <element name="maxIntValue">
-<short></short>
+<short>Return largest element in integer array</short>
 <descr>
+<p>
 <var>MaxIntValue</var> returns the largest integer out of the <var>Data</var>
 array.
-
+</p>
+<p>
 This function is provided for Delphi compatibility, use the <link id="maxvalue"/>
 function instead.
+</p>
 </descr>
 <errors>
 None.
@@ -694,14 +697,17 @@ None.
 
 
 <element name="maxvalue">
-<short></short>
+<short>Return largest value in array</short>
 <descr>
+<p>
 <var>Maxvalue</var> returns the largest value in the <var>data</var> 
 array with integer or float values. The return value has 
 the same type as the elements of the array.
-
+</p>
+<p>
 The third and fourth forms accept a pointer to an array of <var>N</var> 
 integer or float values.
+</p>
 </descr>
 <errors>
 None.
@@ -715,7 +721,7 @@ None.
 </element>
 
 <element name="mean">
-<short></short>
+<short>Return mean value of array</short>
 <descr>
 <var>Mean</var> returns the average value of <var>data</var>.
 
@@ -733,7 +739,7 @@ None.
 </element>
 
 <element name="meanandstddev">
-<short></short>
+<short>Return mean and standard deviation of array</short>
 <descr>
 <var>meanandstddev</var> calculates the mean and standard deviation of <var>data</var>
 and returns the result in <var>mean</var> and <var>stddev</var>, respectively.
@@ -755,7 +761,7 @@ None.
 
 
 <element name="min">
-<short></short>
+<short>Return smallest of two values.</short>
 <descr>
 <var>min</var> returns the smallest value of <var>Int1</var> and <var>Int2</var>;
 </descr>
@@ -769,12 +775,15 @@ None.
 </element>
 
 <element name="minIntValue">
-<short></short>
+<short>Return smallest value in integer array</short>
 <descr>
+<p>
 <var>MinIntvalue</var> returns the smallest value in the <var>Data</var> array.
-
+</p>
+<p>
 This function is provided for Delphi compatibility, use <var>minvalue</var>
 instead.
+</p>
 </descr>
 <errors>
 None
@@ -789,14 +798,17 @@ None
 
 
 <element name="minvalue">
-<short></short>
+<short>Return smallest value in array</short>
 <descr>
+<p>
 <var>Minvalue</var> returns the smallest value in the <var>data</var> 
 array with integer or float values. The return value has 
 the same type as the elements of the array.
-
+</p>
+<p>
 The third and fourth forms accept a pointer to an array of <var>N</var> 
 integer or float values.
+</p>
 </descr>
 <errors>
 None.
@@ -811,7 +823,7 @@ None.
 
 
 <element name="momentskewkurtosis">
-<short></short>
+<short>Return 4 first moments of distribution</short>
 <descr>
 <var>momentskewkurtosis</var> calculates the 4 first moments of the distribution
 of valuesin <var>data</var> and returns them in <var>m1</var>,<var>m2</var>,<var>m3</var> and
@@ -828,12 +840,15 @@ None.
 </element>
 
 <element name="norm">
-<short></short>
+<short>Return Euclidian norm</short>
 <descr>
+<p>
 <var>Norm</var> calculates the Euclidian norm of the array of data.
 This equals <var>sqrt(sumofsquares(data))</var>.
-
+</p>
+<p>
 The second form accepts a pointer to an array of <var>N</var> values.
+</p>
 </descr>
 <errors>
 None.
@@ -846,13 +861,16 @@ None.
 
 
 <element name="popnstddev">
-<short></short>
+<short>Return population variance</short>
 <descr>
+<p>
 <var>Popnstddev</var> returns the square root of the population variance of
 the values in the  <var>Data</var> array. It returns zero if there is only one value.
-
+</p>
+<p>
 The second form of this function accepts a pointer to an array of <var>N</var>
 values.
+</p>
 </descr>
 <errors>
 None.
@@ -861,7 +879,7 @@ None.
 <link id="popnvariance"/>
 <link id="mean"/>
 <link id="meanandstddev"/>
-<link id="stddev"/>,
+<link id="stddev"/>
 <link id="momentskewkurtosis"/>
 </seealso>
 <example file="mathex/ex35"/>
@@ -869,13 +887,16 @@ None.
 
 
 <element name="popnvariance">
-<short></short>
+<short>Return population variance</short>
 <descr>
+<p>
 <var>Popnvariance</var> returns the square root of the population variance of
 the values in the  <var>Data</var> array. It returns zero if there is only one value.
-
+</p>
+<p>
 The second form of this function accepts a pointer to an array of <var>N</var>
 values.
+</p>
 </descr>
 <errors>
 None.
@@ -892,7 +913,7 @@ None.
 
 
 <element name="power">
-<short></short>
+<short>Return real power.</short>
 <descr>
 <var>power</var> raises <var>base</var> to the power <var>power</var>. This is equivalent
 to <var>exp(power*ln(base))</var>. Therefore <var>base</var> should be non-negative.
@@ -908,12 +929,15 @@ None.
 
 
 <element name="radtocycle">
-<short></short>
+<short>Convert radians angle to cycle angle</short>
 <descr>
+<p>
 <var>Radtocycle</var> converts its argument <var>rad</var> (an angle expressed in
 radians) to an angle in cycles.
-
-(1 cycle equals 2 pi radians)
+</p>
+<p>
+(1 cycle equals 2 <var>pi</var> radians)
+</p>
 </descr>
 <errors>
 None.
@@ -930,7 +954,7 @@ None.
 
 
 <element name="radtodeg">
-<short></short>
+<short>Convert radians angle to degrees angle</short>
 <descr>
 <var>Radtodeg</var> converts its argument <var>rad</var> (an angle expressed in
 radians) to an angle in degrees.
@@ -952,12 +976,15 @@ None.
 
 
 <element name="radtograd">
-<short></short>
+<short>Convert radians angle to grads angle</short>
 <descr>
+<p>
 <var>Radtodeg</var> converts its argument <var>rad</var> (an angle expressed in
 radians) to an angle in grads.
-
+</p>
+<p>
 (200 grads equals pi radians)
+</p>
 </descr>
 <errors>
 None.
@@ -974,7 +1001,7 @@ None.
 
 
 <element name="randg">
-<short></short>
+<short>Return gaussian distributed random number.</short>
 <descr>
 <var>randg</var> returns a random number which - when produced in large
 quantities - has a Gaussian distribution with mean <var>mean</var> and 
@@ -993,13 +1020,16 @@ None.
 
 
 <element name="sincos">
-<short></short>
+<short>Return sine and cosine of argument</short>
 <descr>
+<p>
 <var>Sincos</var> calculates the sine and cosine of the angle <var>theta</var>,
 and returns the result in <var>sinus</var> and <var>cosinus</var>.
-
+</p>
+<p>
 On Intel hardware, This calculation will be faster than making 2 calls
-to clculatet he sine and cosine separately.
+to calculate the sine and cosine separately.
+</p>
 </descr>
 <errors>
 None.
@@ -1013,7 +1043,7 @@ None.
 
 
 <element name="sinh">
-<short></short>
+<short>Return hyperbolic sine</short>
 <descr>
 <var>Sinh</var> returns the hyperbolic sine of its argument <var>x</var>.
 </descr>
@@ -1030,13 +1060,16 @@ None.
 
 
 <element name="stddev">
-<short></short>
+<short>Return standard deviation of data</short>
 <descr>
+<p>
 <var>Stddev</var> returns the standard deviation of the values in <var>Data</var>.
 It returns zero if there is only one value.
-
+</p>
+<p>
 The second form of the function accepts a pointer to an array of <var>N</var>
 values.
+</p>
 </descr>
 <errors>
 None.
@@ -1052,12 +1085,15 @@ None.
 
 
 <element name="sum">
-<short></short>
+<short>Return sum of values</short>
 <descr>
+<p>
 <var>Sum</var> returns the sum of the values in the <var>data</var> array.
-
+</p>
+<p>
 The second form of the function accepts a pointer to an array of <var>N</var>
 values.
+</p>
 </descr>
 <errors>
 None.
@@ -1066,20 +1102,23 @@ None.
 <link id="sumofsquares"/>
 <link id="sumsandsquares"/>
 <link id="totalvariance"/>
-, <link id="variance"/>
+<link id="variance"/>
 </seealso>
 <example file="mathex/ex44"/>
 </element>
 
 
 <element name="sumofsquares">
-<short></short>
+<short>Return sum of squares of values</short>
 <descr>
+<p>
 <var>Sumofsquares</var> returns the sum of the squares of the values in the <var>data</var> 
 array.
-
+</p>
+<p>
 The second form of the function accepts a pointer to an array of <var>N</var>
 values.
+</p>
 </descr>
 <errors>
 None.
@@ -1088,21 +1127,24 @@ None.
 <link id="sum"/>
 <link id="sumsandsquares"/>
 <link id="totalvariance"/>
-, <link id="variance"/>
+<link id="variance"/>
 </seealso>
 <example file="mathex/ex45"/>
 </element>
 
 
 <element name="sumsandsquares">
-<short></short>
+<short>Return sum and sum of squares of values.</short>
 <descr>
+<p>
 <var>sumsandsquares</var> calculates the sum of the values and the sum of 
 the squares of the values in the <var>data</var> array and returns the
 results in <var>sum</var> and <var>sumofsquares</var>.
-
+</p>
+<p>
 The second form of the function accepts a pointer to an array of <var>N</var>
 values.
+</p>
 </descr>
 <errors>
 None.
@@ -1111,14 +1153,14 @@ None.
 <link id="sum"/>
 <link id="sumofsquares"/>
 <link id="totalvariance"/>
-, <link id="variance"/>
+<link id="variance"/>
 </seealso>
 <example file="mathex/ex46"/>
 </element>
 
 
 <element name="tan">
-<short></short>
+<short>Return tangent</short>
 <descr>
 <var>Tan</var> returns the tangent of <var>x</var>.
 </descr>
@@ -1136,7 +1178,7 @@ If <var>x</var> (normalized) is pi/2 or 3pi/2 then an overflow will occur.
 
 
 <element name="tanh">
-<short></short>
+<short>Return hyperbolic tangent</short>
 <descr>
 <var>Tanh</var> returns the hyperbolic tangent of <var>x</var>.
 </descr>
@@ -1153,13 +1195,16 @@ None.
 
 
 <element name="totalvariance">
-<short></short>
+<short>Return total varians of values</short>
 <descr>
+<p>
 <var>TotalVariance</var> returns the total variance of the values in the 
 <var>data</var> array. It returns zero if there is only one value.
-
+</p>
+<p>
 The second form of the function accepts a pointer to an array of <var>N</var>
 values.
+</p>
 </descr>
 <errors>
 None.
@@ -1174,13 +1219,16 @@ None.
 
 
 <element name="variance">
-<short></short>
+<short>Return variance of values</short>
 <descr>
+<p>
 <var>Variance</var> returns the variance of the values in the 
 <var>data</var> array. It returns zero if there is only one value.
-
+</p>
+<p>
 The second form of the function accepts a pointer to an array of <var>N</var>
 values.
+</p>
 </descr>
 <errors>
 None.
@@ -1193,6 +1241,395 @@ None.
 <example file="mathex/ex50"/>
 </element>
 
+<!-- unresolved type reference Visibility: default -->
+<element name="sysutils">
+<short>Used for exception definitions.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="MinExtended">
+<short>Minimum value (closest to zero) of extended type</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="MaxExtended">
+<short>Maximum value of extended type</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="MinFloat">
+<short>Minimum value (closest to zero) of float type</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="MaxFloat">
+<short>Maximum value of float type</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PInteger">
+<short>Pointer to integer type</short>
+</element>
+
+<!-- range type Visibility: default -->
+<element name="TValueRelationship">
+<short>Type to describe relational order between values</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="EqualsValue">
+<short>Values are the same</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="LessThanValue">
+<short>First value is less than second value</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="GreaterThanValue">
+<short>First values is greater than second value</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="NaN">
+<short>Value is Not a Number</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="Infinity">
+<short>Value is infinity</short>
+</element>
+
+<!-- function Visibility: default -->
+<element name="InRange">
+<short>Check whether value is in range.</short>
+<descr>
+<var>InRange</var> returns <var>True</var> if <var>AValue</var> is in the
+range <var>AMin</var>..<var>AMax</var>. It returns <var>False</var> if
+<var>Value</var> lies outside the specified range.
+</descr>
+<seealso>
+<link id="EnsureRange"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="EnsureRange">
+<short>Change value to it falls in specified range.</short>
+<descr>
+<var>EnsureRange</var> returns <var>Value</var> if <var>AValue</var> is in
+the range <var>AMin</var>..<var>AMax</var>. It returns <var>AMin</var> if
+the value is less than <var>AMin</var>, or <var>AMax</var> if the value is
+larger than <var>AMax</var>.
+</descr>
+<seealso>
+<link id="InRange"/>
+</seealso>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="DivMod">
+<short>Return DIV and MOD of arguments </short>
+<descr>
+<var>DivMod</var> returns <var>Dividend</var> DIV <var>Divisor</var> in
+<var>Result</var>, and <var>Dividend</var> MOD <var>Divisor</var> in
+<var>Remainder</var>
+</descr>
+</element>
+
+<!-- range type Visibility: default -->
+<element name="TValueSign">
+<short>Type indicating sign of a valuea</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="NegativeValue">
+<short>Value is negative</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="ZeroValue">
+<short>Value is zero</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="PositiveValue">
+<short>Value is positive</short>
+</element>
+
+<!-- function Visibility: default -->
+<element name="Sign">
+<short>Return sign of argument</short>
+<descr>
+<var>Sign</var> returns the sign of it's argument, which can be an Integer,
+64 bit integer, or a double. The returned value is an integer which is -1, 0
+or 1, and can be used to do further calculations with.
+</descr>
+</element>
+
+<!-- function Visibility: default -->
+<element name="IsZero">
+<short>Check whether value is zero</short>
+<descr>
+<p>
+<var>IsZero</var> checks whether the float value <var>A</var> is zero, up to a 
+precision of <var>Epsilon</var>. It returns <var>True</var> if Abs(<var>A</var>) is
+less than <var>Epsilon</var>.
+</p>
+<p>
+The default value for <var>Epsilon</var> is dependent on the type of the
+arguments, but is <link id="MinFloat"/> for the float type.
+</p>
+</descr>
+<seealso>
+<link id="IsNan"/>
+<link id="IsInfinite"/>
+<link id="SameValue"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="IsNan">
+<short>Check whether value is Not a Number</short>
+<descr>
+<var>IsNan</var> returns <var>True</var> if the double <var>d</var> 
+contains Not A Number (a value which cannot be represented correctly 
+in double format).
+</descr>
+<seealso>
+<link id="IsZero"/>
+<link id="IsInfinite"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="IsInfinite">
+<short>Check whether value is infinite</short>
+<descr>
+<var>IsInfinite</var> returns <var>True</var> if the double <var>d</var> 
+contains the infinite value.
+</descr>
+<seealso>
+<link id="IsZero"/>
+<link id="IsInfinite"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="SameValue">
+<short>Check whether 2 float values are the same</short>
+<descr>
+<p>
+<var>SameValue</var> returns <var>True</var> if the floating-point values
+<var>A</var> and <var>B</var> are the same, i.e. whether the absolute value
+of their their difference is smaller than <var>Epsilon</var>. If their
+difference is larger, then <var>False</var> is returned.
+</p>
+<p>
+The default value for <var>Epsilon</var> is dependent on the type of the
+arguments, but is <link id="MinFloat"/> for the float type.
+</p>
+</descr>
+<seealso>
+<link id="MinFloat"/>
+<link id="IsZero"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="arccosh">
+<short>Return inverse hyperbolic cosine</short>
+<descr>
+<p>
+<var>arccosh</var> returns the inverse hyperbolic cosine of it's argument 
+<var>x</var>.
+</p>
+<p>
+This function is an alias for <link id="arcosh"/>, provided for Delphi
+compatibility.
+</p>
+</descr>
+<seealso>
+<link id="arcosh"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="arcsinh">
+<short>Return inverse hyperbolic sine</short>
+<descr>
+<p>
+<var>arcsinh</var> returns the inverse hyperbolic sine of it's argument 
+<var>x</var>.
+</p>
+<p>
+This function is an alias for <link id="arsinh"/>, provided for Delphi
+compatibility.
+</p>
+</descr>
+<seealso>
+<link id="arsinh"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="arctanh">
+<short>Return inverse hyperbolic tangent</short>
+<descr>
+<p>
+<var>arcsinh</var> returns the inverse hyperbolic tangent of it's argument
+<var>x</var>.
+</p>
+<p>
+This function is an alias for <link id="artanh"/>, provided for Delphi
+compatibility.
+</p>
+</descr>
+<seealso>
+<link id="artanh"/>
+</seealso>
+</element>
+
+<!-- enumeration type Visibility: default -->
+<element name="TFPURoundingMode">
+<short>Type describing the rounding mode for the Floating Point processor.</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TFPURoundingMode.rmNearest">
+<short>Round to nearest integer value</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TFPURoundingMode.rmDown">
+<short>Round to biggest integer smaller than value.</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TFPURoundingMode.rmUp">
+<short>Round to smallest integer larger than value.</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TFPURoundingMode.rmTruncate">
+<short>Cut off fractional part.</short>
+</element>
+
+<!-- enumeration type Visibility: default -->
+<element name="TFPUPrecisionMode">
+<short>Type describing the default precision for the Floating Point processor.</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TFPUPrecisionMode.pmSingle">
+<short>Single-type precision</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TFPUPrecisionMode.pmReserved">
+<short>?</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TFPUPrecisionMode.pmDouble">
+<short>Double-type precision</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TFPUPrecisionMode.pmExtended">
+<short>Extended-type precision</short>
+</element>
+
+<!-- enumeration type Visibility: default -->
+<element name="TFPUException">
+<short>Type describing Floating Point processor exceptions.</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TFPUException.exInvalidOp">
+<short>Invalid operation error</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TFPUException.exDenormalized">
+<short></short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TFPUException.exZeroDivide">
+<short>Division by zero error.</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TFPUException.exOverflow">
+<short>Float overflow error</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TFPUException.exUnderflow">
+<short>Float underflow error</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TFPUException.exPrecision">
+<short>Precision error</short>
+</element>
+
+<!-- set type Visibility: default -->
+<element name="TFPUExceptionMask">
+<short>Type to set the Floating Point Unit exception mask.</short>
+</element>
+
+<!-- function Visibility: default -->
+<element name="GetRoundMode">
+<short>Return the Floating Point Unit rounding mode.</short>
+<descr>
+</descr>
+</element>
+
+<!-- function Visibility: default -->
+<element name="SetRoundMode">
+<short>Set the Floating Point Unit rounding mode.</short>
+<descr>
+</descr>
+</element>
+
+<!-- function Visibility: default -->
+<element name="GetPrecisionMode">
+<short>Return the Floating Point Unit precision mode.</short>
+<descr>
+</descr>
+</element>
+
+<!-- function Visibility: default -->
+<element name="SetPrecisionMode">
+<short>Set the Floating Point Unit precision mode.</short>
+<descr>
+</descr>
+</element>
+
+<!-- function Visibility: default -->
+<element name="GetExceptionMask">
+<short>Get the Floating Point Unit exception mask.</short>
+<descr>
+</descr>
+</element>
+
+<!-- function Visibility: default -->
+<element name="SetExceptionMask">
+<short>Set the Floating Point Unit exception mask.</short>
+<descr>
+</descr>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="ClearExceptions">
+<short>Clear Floating Point Unit exceptions</short>
+<descr>
+</descr>
+</element>
+
 </module>
 </package>
 </fpdoc-descriptions>

docs/sockets.xml

@@ -1447,6 +1447,61 @@ None.
 </seealso>
 </element>
 
+<element name="htonl">
+<short>Convert long integer from host ordered to network ordered</short>
+<descr>
+<var>htonl</var> makes sure that the bytes in <var>host</var> are ordered
+in the correct way for sending over the network and returns the correctly
+ordered result.
+</descr>
+<seealso>
+<link id="htons"/>
+<link id="ntohl"/>
+<link id="ntohs"/>
+</seealso>
+</element>
+
+<element name="htons">
+<short>Convert short integer from host ordered to network ordered</short>
+<descr>
+<var>htons</var> makes sure that the bytes in <var>host</var> are  ordered
+in the correct way for sending over the network and returns the correctly
+ordered result.
+</descr>
+<seealso>
+<link id="htonl"/>
+<link id="ntohl"/>
+<link id="ntohs"/>
+</seealso>
+</element>
+
+<element name="ntohl">
+<short>Convert long integer from network ordered to host ordered</short>
+<descr>
+<var>ntohs</var> makes sure that the bytes in <var>Net</var>, received from
+the network, are ordered in the correct way for handling by the host
+machinen, and returns the correctly ordered result.
+</descr>
+<seealso>
+<link id="htonl"/>
+<link id="htons"/>
+<link id="ntohs"/>
+</seealso>
+</element>
+
+<element name="ntohs">
+<short>Convert short integer from network ordered to host ordered</short>
+<descr>
+<var>ntohs</var> makes sure that the bytes in <var>Net</var>, received from
+the network, are ordered in the correct way for handling by the host
+machinen, and returns the correctly ordered result.
+</descr>
+<seealso>
+<link id="htonl"/>
+<link id="htons"/>
+<link id="ntohl"/>
+</seealso>
+</element>
 
 </module>
 </package>

docs/system.xml

@@ -0,0 +1,7428 @@
+<?xml version="1.0" encoding="ISO8859-1"?>
+<fpdoc-descriptions>
+<!--  
+
+   $Id$ 
+   This file is part of the FPC documentation. 
+   Copyright (C) 1997, by Michael Van Canneyt 
+ 
+   The FPC documentation is free text; you can redistribute it and/or 
+   modify it under the terms of the GNU Library General Public License as 
+   published by the Free Software Foundation; either version 2 of the 
+   License, or (at your option) any later version. 
+ 
+   The FPC Documentation is distributed in the hope that it will be useful, 
+   but WITHOUT ANY WARRANTY; without even the implied warranty of 
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+   Library General Public License for more details. 
+ 
+   You should have received a copy of the GNU Library General Public 
+   License along with the FPC documentation; see the file COPYING.LIB.  If not, 
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, 
+   Boston, MA 02111-1307, USA. 
+ -->
+<package name="rtl">
+<module name="system">
+<short>The system unit</short>
+<!-- \FPCexampledir{refex} -->
+<descr>
+<p>
+The system unit contains the standard supported functions of Free Pascal. It is the
+same for all platforms. Basically it is the same as the system unit provided
+with Borland or Turbo Pascal.
+</p>
+<p>
+Functions are listed in alphabetical order. Arguments of functions or
+procedures that are optional are put between square brackets.
+</p>
+<p>
+The pre-defined constants and variables are listed in the first section.
+The second section contains an overview of all functions, grouped by
+functionality, and the last section contains the supported functions
+and procedures.
+</p>
+</descr>
+
+<topic name="integertypes">
+<short>Integer Types</short>
+<descr>
+<p>
+The following integer types are defined in the System unit:
+</p>
+<code>
+Shortint = -128..127;
+SmallInt = -32768..32767;
+Longint  = $80000000..$7fffffff;
+byte     = 0..255;
+word     = 0..65535;
+dword    = longword;
+cardinal = longword;
+Integer  = smallint;
+</code>
+<p>
+The following types are used for the functions that need compiler magic
+such as <link id="Val"/> or <link id="Str"/>:
+</p>
+<code>
+StrLenInt = LongInt;
+ValSInt = Longint;
+ValUInt = Cardinal;
+ValReal = Extended;
+</code>
+<p>
+The <var>Real48</var> type is defined to emulate the old Turbo Pascal <var>Real</var> type:
+</p>
+<code>
+Real48 = Array[0..5] of byte;
+</code>
+<p>
+The assignment operator has been overloaded so this type can be assigned
+to the Free Pascal native <var>Double</var> and <var>Extended</var> types.
+<link id="Real2Double"/>.
+</p>
+<p>
+The following character types are defined for Delphi compatibility:
+</p>
+<code>
+TAnsiChar   = Char;
+AnsiChar    = TAnsiChar;
+</code>
+<p>
+And the following pointer types as well:
+</p>
+<code>
+  PChar = ^char;
+  pPChar = ^PChar;
+  PAnsiChar   = PChar;
+  PQWord      = ^QWord;
+  PInt64      = ^Int64;
+  pshortstring = ^shortstring;
+  plongstring  = ^longstring;
+  pansistring  = ^ansistring;
+  pwidestring  = ^widestring;
+  pextended    = ^extended;
+  ppointer     = ^pointer;
+</code>
+<p>
+For the <link id="SetJmp"/> and <link id="LongJmp"/> calls, the following jump bufer
+type is defined (for the I386 processor):
+</p>
+<code>
+  jmp_buf = record
+    ebx,esi,edi : Longint;
+    bp,sp,pc : Pointer;
+    end;
+  PJmp_buf = ^jmp_buf;
+</code>
+<p>
+The following records and pointers can be used to scan the
+entries in the string message handler tables:
+</p>
+<code>
+  tmsgstrtable = record
+     name : pshortstring;
+     method : pointer;
+  end;
+  pmsgstrtable = ^tmsgstrtable;
+
+  tstringmessagetable = record
+     count : dword;
+     msgstrtable : array[0..0] of tmsgstrtable;
+  end;
+  pstringmessagetable = ^tstringmessagetable;
+</code>
+<p>
+The base class for all classes is defined as:
+</p>
+<code>
+Type
+  TObject = Class
+  Public
+    constructor create;
+    destructor destroy;virtual;
+    class function newinstance : tobject;virtual;
+    procedure freeinstance;virtual;
+    function safecallexception(exceptobject : tobject;
+      exceptaddr : pointer) : longint;virtual;
+    procedure defaulthandler(var message);virtual;
+    procedure free;
+    class function initinstance(instance : pointer) : tobject;
+    procedure cleanupinstance;
+    function classtype : tclass;
+    class function classinfo : pointer;
+    class function classname : shortstring;
+    class function classnameis(const name : string) : boolean;
+    class function classparent : tclass;
+    class function instancesize : longint;
+    class function inheritsfrom(aclass : tclass) : boolean;
+    class function inheritsfrom(aclass : tclass) : boolean;
+    class function stringmessagetable : pstringmessagetable;
+    procedure dispatch(var message);
+    procedure dispatchstr(var message);
+    class function methodaddress(const name : shortstring) : pointer;
+    class function methodname(address : pointer) : shortstring;
+    function fieldaddress(const name : shortstring) : pointer;
+    procedure AfterConstruction;virtual;
+    procedure BeforeDestruction;virtual;
+    procedure DefaultHandlerStr(var message);virtual;
+  end;
+  TClass = Class Of TObject;
+  PClass = ^TClass;
+</code>
+<p>
+Unhandled exceptions can be treated using a constant of the
+<var>TExceptProc</var> type:
+</p>
+<code>
+TExceptProc = Procedure (Obj : TObject; Addr,Frame: Pointer);
+</code>
+<p>
+<var>Obj</var> is the exception object that was used to raise the exception,
+<var>Addr</var> and <var>Frame</var> contain the exact address and stack frame
+where the exception was raised.
+</p>
+<p>
+The <var>TVarRec</var> type is used to access the elements passed in a \var{Array
+of Const} argument to a function or procedure:
+</p>
+<code>
+Type
+  PVarRec = ^TVarRec;
+  TVarRec = record
+    case VType : Longint of
+    vtInteger    : (VInteger: Longint);
+    vtBoolean    : (VBoolean: Boolean);
+    vtChar       : (VChar: Char);
+    vtExtended   : (VExtended: PExtended);
+    vtString     : (VString: PShortString);
+    vtPointer    : (VPointer: Pointer);
+    vtPChar      : (VPChar: PChar);
+    vtObject     : (VObject: TObject);
+    vtClass      : (VClass: TClass);
+    vtAnsiString : (VAnsiString: Pointer);
+    vtWideString : (VWideString: Pointer);
+    vtInt64      : (VInt64: PInt64);
+  end;
+</code>
+<p>
+The heap manager uses the <var>TMemoryManager</var> type:
+</p>
+<code>
+  PMemoryManager = ^TMemoryManager;
+  TMemoryManager = record
+    Getmem      : Function(Size:Longint):Pointer;
+    Freemem     : Function(var p:pointer):Longint;
+    FreememSize : Function(var p:pointer;Size:Longint):Longint;
+    AllocMem    : Function(Size:longint):Pointer;
+    ReAllocMem  : Function(var p:pointer;Size:longint):Pointer;
+    MemSize     : function(p:pointer):Longint;
+    MemAvail    : Function:Longint;
+    MaxAvail    : Function:Longint;
+    HeapSize    : Function:Longint;
+  end;
+</code>
+<p>
+More information on using this record can be found in \progref.
+</p>
+</descr>
+</topic>
+
+<topic name="Constants">
+<short>Constants</short>
+<descr>
+<p>
+The following constants define the maximum values that can be used with
+various types:
+</p>
+<code>
+  MaxSIntValue = High(ValSInt);
+  MaxUIntValue = High(ValUInt);
+  maxint   = maxsmallint;
+  maxLongint  = $7fffffff;
+  maxSmallint = 32767;
+</code>
+<p>
+The following constants for file-handling are defined in the system unit:
+</p>
+<code>
+Const
+  fmclosed = $D7B0;
+  fminput  = $D7B1;
+  fmoutput = $D7B2;
+  fminout  = $D7B3;
+  fmappend = $D7B4;
+  filemode : byte = 2;
+</code>
+<p>
+The <var>filemode</var> variable is used when a non-text file is opened using
+<var>Reset</var>. It indicates how the file will be opened. <var>filemode</var> can have one of
+the following values:
+</p>
+<dl>
+<dt>0</dt><dd> The file is opened for reading.
+</dd><dt>1</dt><dd> The file is opened for writing.
+</dd><dt>2</dt><dd> The file is opened for reading and writing.
+</dd>
+</dl>
+<p>
+The default value is 2. Other values are possible but are operating system specific.
+</p>
+<p>
+Further, the following non processor specific general-purpose constants
+are also defined:
+</p>
+<code>
+const
+  erroraddr : pointer = nil;
+  errorcode : word = 0;
+ { max level in dumping on error }
+  max_frame_dump : word = 20;
+</code>
+<p>
+</p>
+<remark>
+Processor specific global constants are named Testxxxx where xxxx
+represents the processor number (such as Test8086, Test68000),
+and are used to determine on what generation of processor the program
+is running on.
+</remark>
+<p>
+The following constants are defined to access VMT entries:
+</p>
+<code>
+   vmtInstanceSize         = 0;
+   vmtParent               = 8;
+   vmtClassName            = 12;
+   vmtDynamicTable         = 16;
+   vmtMethodTable          = 20;
+   vmtFieldTable           = 24;
+   vmtTypeInfo             = 28;
+   vmtInitTable            = 32;
+   vmtAutoTable            = 36;
+   vmtIntfTable            = 40;
+   vmtMsgStrPtr            = 44;
+   vmtMethodStart          = 48;
+   vmtDestroy              = vmtMethodStart;
+   vmtNewInstance          = vmtMethodStart+4;
+   vmtFreeInstance         = vmtMethodStart+8;
+   vmtSafeCallException    = vmtMethodStart+12;
+   vmtDefaultHandler       = vmtMethodStart+16;
+   vmtAfterConstruction    = vmtMethodStart+20;
+   vmtBeforeDestruction    = vmtMethodStart+24;
+   vmtDefaultHandlerStr    = vmtMethodStart+28;
+</code>
+<p>
+The constant names should be used, and never their values, because
+the VMT table can change, breaking code that uses direct values.
+</p>
+<p>
+The following constants will be used for the planned <var>variant</var> support:
+</p>
+<code>
+  varEmpty     = $0000;
+  varNull      = $0001;
+  varSmallint  = $0002;
+  varInteger   = $0003;
+  varSingle    = $0004;
+  varDouble    = $0005;
+  varCurrency  = $0006;
+  varDate      = $0007;
+  varOleStr    = $0008;
+  varDispatch  = $0009;
+  varError     = $000A;
+  varBoolean   = $000B;
+  varVariant   = $000C;
+  varUnknown   = $000D;
+  varByte      = $0011;
+  varString    = $0100;
+  varAny       = $0101;
+  varTypeMask  = $0FFF;
+  varArray     = $2000;
+  varByRef     = $4000;
+</code>
+<p>
+The following constants are used in the <var>TVarRec</var> record:
+</p>
+<code>
+vtInteger    = 0;
+vtBoolean    = 1;
+vtChar       = 2;
+vtExtended   = 3;
+vtString     = 4;
+vtPointer    = 5;
+vtPChar      = 6;
+vtObject     = 7;
+vtClass      = 8;
+vtWideChar   = 9;
+vtPWideChar  = 10;
+vtAnsiString = 11;
+vtCurrency   = 12;
+vtVariant    = 13;
+vtInterface  = 14;
+vtWideString = 15;
+vtInt64      = 16;
+vtQWord      = 17;
+</code>
+<p>
+The <var>ExceptProc</var> is called when an unhandled exception occurs:
+</p>
+<code>
+Const
+  ExceptProc : TExceptProc = Nil;
+</code>
+<p>
+It is set in the <file>objpas</file> unit, but it can be set by the programmer
+to change the default exception handling.
+</p>
+<p>
+The following constants are defined to describe the operating system's file
+system:
+</p>
+<code>
+LineEnding = #10;
+LFNSupport = true;
+DirectorySeparator = '/';
+DriveSeparator = ':';
+PathSeparator = ':';
+FileNameCaseSensitive : Boolean = True;
+</code>
+<p>
+The shown values are for unix platforms, but will be different on other
+platforms.
+The meaning of the constants is the following:
+</p>
+<dl>
+<dt>LineEnding</dt>
+<dd> End of line marker. This constant is used when writing end
+of lines to text files.
+</dd>
+<dt>LFNSupport</dt>
+<dd> This is <var>True</var> if the system supports long file names,
+i.e. filenames that are not restricted to 8.3 characters.
+</dd>
+<dt>DirectorySeparator</dt>
+<dd> The character that is used as a directory
+separator, i.e. it appears between various parts of a path to a file.
+</dd>
+<dt>DriveSeparator</dt>
+<dd> On systems that support drive letters, this character
+separates the drive indication from the rest of a filename.
+</dd>
+<dt>PathSeparator</dt>
+<dd> This character can be found between elements in a
+series of paths (such as the contents of the <var>PATH</var> environment
+variable.
+</dd>
+<dt>FileNameCaseSensitive</dt>
+<dd> Indicates whether filenames are case sensitive.
+</dd>
+</dl>
+<p>
+When programming cross-platform, use these constants instead of hard-coded
+characters. This will enhance portability of an application.
+</p>
+</descr>
+</topic>
+
+<topic name="variables">
+<short>Variables</short>
+<descr>
+<p>
+The following variables are defined and initialized in the system unit:
+</p>
+<code>
+var
+  output,input,stderr : text;
+  exitproc : pointer;
+  exitcode : word;
+  stackbottom : Cardinal;
+</code>
+<p>
+The variables <var>ExitProc</var>, <var>exitcode</var> are used in the Free Pascal exit
+scheme. It works similarly to the one in Turbo Pascal:
+</p>
+<p>
+When a program halts (be it through the call of the <var>Halt</var> function or
+<var>Exit</var> or through a run-time error), the exit mechanism checks the value
+of <var>ExitProc</var>. If this one is non-<var>Nil</var>, it is set to <var>Nil</var>, and
+the procedure is called. If the exit procedure exits, the value of ExitProc
+is checked again. If it is non-<var>Nil</var> then the above steps are repeated.
+So when an exit procedure must be installed, the old value of <var>ExitProc</var>
+should be saved (it may be non-<var>Nil</var>, since other units could have set
+it). In the exit procedure the value of <var>ExitProc</var> should be restored to
+the previous value, such that if it was non-<var>Nil</var> the exit-procedure can be
+called.
+</p>
+<p>
+The <var>ErrorAddr</var> and <var>ExitCode</var> can be used to check for
+error-conditions. If <var>ErrorAddr</var> is non-<var>Nil</var>, a run-time error has
+occurred. If so, <var>ExitCode</var> contains the error code. If <var>ErrorAddr</var> is
+<var>Nil</var>, then {ExitCode} contains the argument to <var>Halt</var> or 0 if the
+program terminated normally.
+</p>
+<p>
+<var>ExitCode</var> is always passed to the operating system as the exit-code of
+the current process.
+</p>
+<remark>
+The maximum error code under linux and unix like operating systems is 127.
+</remark>
+<p>
+Under <file>GO32</file>, the following constants are also defined :
+</p>
+<code>
+const
+   seg0040 = $0040;
+   segA000 = $A000;
+   segB000 = $B000;
+   segB800 = $B800;
+</code>
+<p>
+These constants allow easy access to the bios/screen segment via mem/absolute.
+</p>
+<p>
+The randomize function uses a seed stored in the <var>RandSeed</var> variable:
+</p>
+<code>
+  RandSeed    : Cardinal;
+</code>
+<p>
+This variable is initialized in the initialization code of the system unit.
+</p>
+<p>
+Other variables indicate the state of the application.
+</p>
+<code>
+  IsLibrary : boolean;
+  IsMultiThread : boolean;
+</code>
+<p>
+The <var>IsLibrary</var> variable is set to true if this module is a
+shared library instead of an application. The <var>IsMultiThread</var>
+variable is set to True if the application has spawned other
+threads, otherwise, and by default, it is set to False.
+</p>
+</descr>
+<example file="refex/ex98"/>
+</topic>
+
+<topic name="FileFunctions">
+<short>File handling functions</short>
+<descr>
+<p>
+Functions concerning input and output from and to file.
+</p>
+<table>
+<th><td>Name</td><td>Description</td></th>
+<tr><td><link id="Append"/></td><td>Open a file in append mode</td></tr>
+<tr><td><link id="Assign"/></td><td>Assign a name to a file</td></tr>
+<tr><td><link id="Blockread"/></td><td>Read data from a file into memory</td></tr>
+<tr><td><link id="Blockwrite"/></td><td>Write data from memory to a file</td></tr>
+<tr><td><link id="Close"/></td><td>Close a file</td></tr>
+<tr><td><link id="Eof"/></td><td>Check for end of file</td></tr>
+<tr><td><link id="Eoln"/></td><td>Check for end of line</td></tr>
+<tr><td><link id="Erase"/></td><td>Delete  file from disk</td></tr>
+<tr><td><link id="Filepos"/></td><td>Position in file</td></tr>
+<tr><td><link id="Filesize"/></td><td>Size of file</td></tr>
+<tr><td><link id="Flush"/></td><td>Write file buffers to disk</td></tr>
+<tr><td><link id="IOresult"/></td><td>Return result of last file IO operation</td></tr>
+<tr><td><link id="Read"/></td><td>Read from file into variable</td></tr>
+<tr><td><link id="Readln"/></td><td>Read from file into variable and goto next line</td></tr>
+<tr><td><link id="Rename"/></td><td>Rename file on disk</td></tr>
+<tr><td><link id="Reset"/></td><td>Open file for reading</td></tr>
+<tr><td><link id="Rewrite"/></td><td>Open file for writing</td></tr>
+<tr><td><link id="Seek"/></td><td>Set file position</td></tr>
+<tr><td><link id="SeekEof"/></td><td>Set file position to end of file</td></tr>
+<tr><td><link id="SeekEoln"/></td><td>Set file position to end of line</td></tr>
+<tr><td><link id="SetTextBuf"/></td><td>Set size of file buffer</td></tr>
+<tr><td><link id="Truncate"/></td><td>Truncate the file at position</td></tr>
+<tr><td><link id="Write"/></td><td>Write variable to file</td></tr>
+<tr><td><link id="WriteLn"/></td><td>Write variable to file and append newline</td></tr>
+</table>
+</descr>
+</topic>
+
+<topic name="MemoryFunctions">
+<short>Memory management functions</short>
+<descr>
+<p>
+Functions concerning memory issues.
+</p>
+<table>
+<th><td>Name</td><td>Description</td></th>
+<tr><td><link id="Addr"/></td><td>Return address of variable</td></tr>
+<tr><td><link id="Assigned"/></td><td>Check if a pointer is valid</td></tr>
+<tr><td><link id="CompareByte"/></td><td>Compare 2 memory buffers byte per byte</td></tr>
+<tr><td><link id="CompareChar"/></td><td>Compare 2 memory buffers byte per byte</td></tr>
+<tr><td><link id="CompareDWord"/></td><td>Compare 2 memory buffers byte per byte</td></tr>
+<tr><td><link id="CompareWord"/></td><td>Compare 2 memory buffers byte per byte</td></tr>
+<tr><td><link id="CSeg"/></td><td>Return code segment</td></tr>
+<tr><td><link id="Dispose"/></td><td>Free dynamically allocated memory</td></tr>
+<tr><td><link id="DSeg"/></td><td>Return data segment</td></tr>
+<tr><td><link id="FillByte"/></td><td>Fill memory region with 8-bit pattern</td></tr>
+<tr><td><link id="Fillchar"/></td><td>Fill memory region with certain character</td></tr>
+<tr><td><link id="FillDWord"/></td><td>Fill memory region with 32-bit pattern</td></tr>
+<tr><td><link id="Fillword"/></td><td>Fill memory region with 16-bit pattern</td></tr>
+<tr><td><link id="Freemem"/></td><td>Release allocated memory</td></tr>
+<tr><td><link id="Getmem"/></td><td>Allocate new memory</td></tr>
+<tr><td><link id="GetMemoryManager"/></td><td>Return current memory manager</td></tr>
+<tr><td><link id="High"/></td><td>Return highest index of open array or enumerated</td></tr>
+<tr><td><link id="IsMemoryManagerSet"/></td><td>Is the memory manager set</td></tr>
+<tr><td><link id="Low"/></td><td>Return lowest index of open array or enumerated</td></tr>
+<tr><td><link id="Maxavail"/></td><td>Return size of largest free memory block</td></tr>
+<tr><td><link id="Memavail"/></td><td>Return total available memory</td></tr>
+<tr><td><link id="Move"/></td><td>Move data from one location in memory to another</td></tr>
+<tr><td><link id="MoveChar0">MoveChar0</link></td><td>Move data till first zero character</td></tr>
+<tr><td><link id="New"/></td><td>Dynamically allocate memory for variable</td></tr>
+<tr><td><link id="Ofs"/></td><td>Return offset of variable</td></tr>
+<tr><td><link id="Ptr"/></td><td>Combine segment and offset to pointer</td></tr>
+<tr><td><link id="ReAllocMem"/></td><td>Resize a memory block on the heap</td></tr>
+<tr><td><link id="Seg"/></td><td>Return segment</td></tr>
+<tr><td><link id="SetMemoryManager"/></td><td>Set a memory manager</td></tr>
+<tr><td><link id="Sptr"/></td><td>Return current stack pointer</td></tr>
+<tr><td><link id="SSeg"/></td><td>Return stack segment register value</td></tr>
+</table>
+</descr>
+</topic>
+
+<topic name="MathematicalFunctions">
+<short>Mathematical routines</short>
+<descr>
+<p>
+Functions connected to calculating and coverting numbers.
+</p>
+<table>
+<th><td>Name</td><td>Description</td></th>
+<tr><td><link id="Abs"/></td><td>Calculate absolute value</td></tr>
+<tr><td><link id="Arctan"/></td><td>Calculate inverse tangent</td></tr>
+<tr><td><link id="Cos"/></td><td>Calculate cosine of angle</td></tr>
+<tr><td><link id="Dec"/></td><td>Decrease value of variable</td></tr>
+<tr><td><link id="Exp"/></td><td>Exponentiate</td></tr>
+<tr><td><link id="Frac"/></td><td>Return fractional part of floating point value</td></tr>
+<tr><td><link id="Hi"/></td><td>Return high byte/word of value</td></tr>
+<tr><td><link id="Inc"/></td><td>Increase value of variable</td></tr>
+<tr><td><link id="Int"/></td><td>Calculate integer part of floating point value</td></tr>
+<tr><td><link id="Ln"/></td><td>Calculate logarithm</td></tr>
+<tr><td><link id="Lo"/></td><td>Return low byte/word of value</td></tr>
+<tr><td><link id="Odd"/></td><td>Is a value odd or even ? </td></tr>
+<tr><td><link id="Pi"/></td><td>Return the value of pi</td></tr>
+<tr><td><link id="Power"/></td><td>Raise float to integer power</td></tr>
+<tr><td><link id="Random"/></td><td>Generate random number</td></tr>
+<tr><td><link id="Randomize"/></td><td>Initialize random number generator</td></tr>
+<tr><td><link id="Round"/></td><td>Round floating point value to nearest integer number</td></tr>
+<tr><td><link id="Sin"/></td><td>Calculate sine of angle</td></tr>
+<tr><td><link id="Sqr"/></td><td>Calculate the square of a value</td></tr>
+<tr><td><link id="Sqrt"/></td><td>Calculate the square root of a value</td></tr>
+<tr><td><link id="Swap"/></td><td>Swap high and low bytes/words of a variable</td></tr>
+<tr><td><link id="Trunc"/></td><td>Truncate a floating point value</td></tr>
+</table>
+</descr>
+</topic>
+
+<topic name="StringFunctions">
+<short>String handling</short>
+<descr>
+<p>
+All things connected to string handling.
+</p>
+<table>
+<th><td>Name</td><td>Description</td></th>
+<tr><td><link id="BinStr"/></td><td>Construct binary representation of integer</td></tr>
+<tr><td><link id="Chr"/></td><td>Convert ASCII code to character</td></tr>
+<tr><td><link id="Concat"/></td><td>Concatenate two strings</td></tr>
+<tr><td><link id="Copy"/></td><td>Copy part of a string</td></tr>
+<tr><td><link id="Delete"/></td><td>Delete part of a string</td></tr>
+<tr><td><link id="HexStr"/></td><td>Construct hexadecimal representation of integer</td></tr>
+<tr><td><link id="Insert"/></td><td>Insert one string in another</td></tr>
+<tr><td><link id="Length"/></td><td>Return length of string</td></tr>
+<tr><td><link id="Lowercase"/></td><td>Convert string to all-lowercase</td></tr>
+<tr><td><link id="OctStr"/></td><td>Construct octal representation of integer</td></tr>
+<tr><td><link id="Pos"/></td><td>Calculate position of one string in another</td></tr>
+<tr><td><link id="SetLength"/></td><td>Set length of a string</td></tr>
+<tr><td><link id="SetString"/></td><td>Set contents and length of a string</td></tr>
+<tr><td><link id="Str"/></td><td>Convert number to string representation</td></tr>
+<tr><td><link id="StringOfChar"/></td><td>Create string consisting of a number of characters</td></tr>
+<tr><td><link id="Upcase"/></td><td>Convert string to all-uppercase</td></tr>
+<tr><td><link id="Val"/></td><td>Convert string to number</td></tr>
+</table>
+</descr>
+</topic>
+
+<topic name="OSfunctions">
+<short>Operating System functions</short>
+<descr>
+<p>
+Functions that are connected to the operating system.
+</p>
+<table>
+<th><td>Name</td><td>Description</td></th>
+<tr><td><link id="Chdir"/></td><td>Change working directory</td></tr>
+<tr><td><link id="Getdir"/></td><td>Return current working directory</td></tr>
+<tr><td><link id="Halt"/></td><td>Halt program execution</td></tr>
+<tr><td><link id="Paramcount"/></td><td>Number of parameters with which program was called</td></tr>
+<tr><td><link id="Paramstr"/></td><td>Retrieve parameters with which program was called</td></tr>
+<tr><td><link id="Mkdir"/></td><td>Make a directory</td></tr>
+<tr><td><link id="Rmdir"/></td><td>Remove a directory</td></tr>
+<tr><td><link id="Runerror"/></td><td>Abort program execution with error condition</td></tr>
+</table>
+</descr>
+</topic>
+
+<topic name="MiscellaneousFunctions">
+<short>Miscellaneous functions</short>
+<descr>
+<p>
+Functions that do not belong in one of the other categories.
+</p>
+<table>
+<th><td>Name</td><td>Description</td></th>
+<tr><td><link id="Assert"/></td><td>Conditionally abort program with error</td></tr>
+<tr><td><link id="Break"/></td><td>Abort current loop</td></tr>
+<tr><td><link id="Continue"/></td><td>Next cycle in current loop</td></tr>
+<tr><td><link id="Exclude"/></td><td>Exclude an element from a set</td></tr>
+<tr><td><link id="Exit"/></td><td>Exit current function or procedure</td></tr>
+<tr><td><link id="Include"/></td><td>Include an element into a set</td></tr>
+<tr><td><link id="LongJmp"/></td><td>Jump to execution point</td></tr>
+<tr><td><link id="Ord"/></td><td>Return ordinal value of enumerated type</td></tr>
+<tr><td><link id="Pred"/></td><td>Return previous value of ordinal type</td></tr>
+<tr><td><link id="SetJmp"/></td><td>Mark execution point for jump</td></tr>
+<tr><td><link id="SizeOf"/></td><td>Return size of variable or type</td></tr>
+<tr><td><link id="Succ"/></td><td>Return next value of ordinal type</td></tr>
+</table>
+</descr>
+</topic>
+
+<element name="Abs">
+<short>Calculate absolute value</short>
+<descr>
+<var>Abs</var> returns the absolute value of a variable. The result of the
+function has the same type as its argument, which can be any numerical
+type.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Round"/>
+</seealso>
+<example file="refex/ex1"/>
+</element>
+
+
+
+<element name="Addr">
+<short>Return address of a variable</short>
+<descr>
+<var>Addr</var> returns a pointer to its argument, which can be any type, or a
+function or procedure name. The returned pointer isn't typed.
+The same result can be obtained by the <var>@</var> operator, which can return a
+typed pointer (\progref).
+</descr>
+<errors>
+None
+</errors>
+<seealso>
+<link id="SizeOf"/>
+</seealso>
+<example file="refex/ex2"/>
+</element>
+
+
+
+<element name="Append">
+<short>Open a file in append mode</short>
+<descr>
+<var>Append</var> opens an existing file in append mode. Any data written to
+<var>F</var> will be appended to the file. Only text files can be opened in
+append mode. After a call to <var>Append</var>, the file <var>F</var> becomes
+write-only.
+
+File sharing is not taken into account when calling <var>Append</var>.
+
+</descr>
+<errors>
+If the file doesn't exist when appending, a run-time error will be generated.
+This behaviour has changed on Windows and Linux platforms, where in versions
+prior to 1.0.6, the file would be created in append mode.
+</errors>
+<seealso>
+<link id="Rewrite"/>
+<link id="Close"/>
+<link id="Reset"/>
+</seealso>
+<example file="refex/ex3"/>
+</element>
+
+
+
+<element name="Arctan">
+<short>Calculate inverse tangent</short>
+<descr>
+<var>Arctan</var> returns the Arctangent of <var>X</var>, which can be any Real type.
+The resulting angle is in radial units.
+</descr>
+<errors>
+None
+</errors>
+<seealso>
+<link id="Sin"/>
+<link id="Cos"/>
+</seealso>
+<example file="refex/ex4"/>
+</element>
+
+
+
+<element name="Assert">
+<short>Check validity of a given condition.</short>
+<descr>
+With assertions on, <var>Assert</var> tests if <var>expr</var> is 
+false, and if so, aborts the application with a Runtime error 
+227 and an optional error message in <var>msg</var>.
+If <var>expr</var> is true, program execution continues normally. 
+
+If assertions are not enabled at compile time, this routine does 
+nothing, and no code is generated for the <var>Assert</var> call. 
+
+Enabling and disabling assertions at compile time is done via
+the <var>\$C</var> or <var>\$ASSERTIONS</var> compiler switches. These are
+global switches.
+
+The default behavior of the assert call can be changed by 
+setting a new handler in the <var>AssertErrorProc</var> variable.
+Sysutils overrides the default handler to raise a <var>EAssertionFailed</var> 
+exception.
+
+
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Halt"/>
+<link id="Runerror"/>
+</seealso>
+</element>
+
+
+<element name="Assign">
+<short>Assign a name to a file</short>
+<descr>
+<var>Assign</var> assigns a name to <var>F</var>, which can be any file type.
+This call doesn't open the file, it just assigns a name to a file variable,
+and marks the file as closed.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Reset"/>
+<link id="Rewrite"/>
+<link id="Append"/>
+</seealso>
+<example file="refex/ex5"/>
+</element>
+
+
+
+<element name="Assigned">
+<short>Check if a pointer is valid</short>
+<descr>
+<var>Assigned</var> returns <var>True</var> if <var>P</var> is non-nil
+and retuns <var>False</var> of <var>P</var> is nil.
+The main use of Assigned is that Procedural variables, method variables and
+class-type variables also can be passed to <var>Assigned</var>.
+</descr>
+<errors>
+None
+</errors>
+<seealso>
+<link id="New"/>
+</seealso>
+<example file="refex/ex96"/>
+</element>
+
+
+
+<element name="BinStr">
+<short>Convert integer to string with binary representation.</short>
+<descr>
+<var>BinStr</var> returns a string with the binary representation
+of <var>Value</var>. The string has at most <var>cnt</var> characters.
+(i.e. only the <var>cnt</var> rightmost bits are taken into account)
+To have a complete representation of any longint-type value, 32
+bits are needed, i.e. <var>cnt=32</var>
+
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Str"/>
+<link id="Val"/>
+<link id="HexStr"/>
+<link id="OctStr"/>
+</seealso>
+<example file="refex/ex82"/>
+</element>
+
+
+
+<element name="Blockread">
+<short>Read data from an untyped file into memory</short>
+<descr>
+<var>Blockread</var> reads <var>count</var> or less records from file <var>F</var>. A
+record is a block of bytes with size specified by the <link id="Rewrite"/> or
+<link id="Reset"/> statement.
+
+The result is placed in <var>Buffer</var>, which must contain enough room for
+<var>Count</var> records. The function cannot read partial records.
+If <var>Result</var> is specified, it contains the number of records actually
+read. If <var>Result</var> isn't specified, and less than <var>Count</var> records were
+read, a run-time error is generated. This behavior can be controlled by the
+\var{\{\$i\}} switch.
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Blockwrite"/>
+<link id="Close"/>
+<link id="Reset"/>
+<link id="Assign"/>
+</seealso>
+<example file="refex/ex6"/>
+</element>
+
+
+
+<element name="Blockwrite">
+<short>Write data from memory to an untyped file</short>
+<descr>
+<var>BlockWrite</var> writes <var>count</var> records from <var>buffer</var> to the file
+ <var>F</var>.A record is a block of bytes with size specified by the <link id="Rewrite"/> or
+<link id="Reset"/> statement.
+
+If the records couldn't be written to disk, a run-time error is generated.
+This behavior can be controlled by the \var{\{\$i\}} switch.
+
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Blockread"/>
+<link id="Close"/>
+<link id="Rewrite"/>
+<link id="Assign"/>
+</seealso>
+</element>
+
+For the example, see <link id="Blockread"/>.
+
+<element name="Break">
+<short>Exit current loop construct.</short>
+<descr>
+<p>
+<var>Break</var> jumps to the statement following the end of the current
+repetitive statement. The code between the <var>Break</var> call and
+the end of the repetitive statement is skipped.
+The condition of the repetitive statement is NOT evaluated.
+</p>
+<p>
+This can be used with <var>For</var>, var{repeat} and <var>While</var> statements.
+</p>
+<p>
+Note that while this is a procedure, <var>Break</var> is a reserved word
+and hence cannot be redefined.
+</p>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Continue"/>
+<link id="Exit"/>
+</seealso>
+<example file="refex/ex87"/>
+</element>
+
+
+
+<element name="Chdir">
+<short>Change current working directory.</short>
+<descr>
+<var>Chdir</var> changes the working directory of the process to <var>S</var>.
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Mkdir"/>
+<link id="Rmdir"/>
+</seealso>
+<example file="refex/ex7"/>
+</element>
+
+
+
+<element name="Chr">
+<short>Convert byte value to character value</short>
+<descr>
+<var>Chr</var> returns the character which has ASCII value <var>X</var>.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Ord"/>
+<link id="Str"/>
+</seealso>
+<example file="refex/ex8"/>
+</element>
+
+
+
+<element name="Close">
+<short>Close a file</short>
+<descr>
+<var>Close</var> flushes the buffer of the file <var>F</var> and closes <var>F</var>.
+After a call to <var>Close</var>, data can no longer be read from or written to
+<var>F</var>.
+To reopen a file closed with <var>Close</var>, it isn't necessary to assign the
+file again. A call to <link id="Reset"/> or <link id="Rewrite"/> is sufficient.
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Assign"/>
+<link id="Reset"/>
+<link id="Rewrite"/>
+<link id="Flush"/>
+</seealso>
+<example file="refex/ex9"/>
+</element>
+
+
+
+<element name="CompareByte">
+<short>Compare 2 memory buffers byte per byte</short>
+<descr>
+<p>
+<var>CompareByte</var> compares two memory regions <var>buf1</var>,<var>buf2</var> on a
+byte-per-byte basis for a total of <var>len</var> bytes.
+</p>
+<p>
+The function returns one of the following values:
+</p>
+<dl>
+<dt>less than 0</dt>
+<dd> if <var>buf1</var> and <var>buf2</var> contain different bytes
+in the first <var>len</var> bytes, and the first such byte is smaller in <var>buf1</var>
+than the byte at the same position in <var>buf2</var>.
+</dd>
+<dt>0</dt>
+<dd>  if the first <var>len</var> bytes in <var>buf1</var> and <var>buf2</var> are
+equal.
+\item [greater than 0] if <var>buf1</var> and <var>buf2</var> contain different bytes
+in the first <var>len</var> bytes, and the first such byte is larger in <var>buf1</var>
+than the byte at the same position in <var>buf2</var>.
+</dd>
+</dl>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="CompareChar"/>
+<link id="CompareWord"/>
+<link id="CompareDWord"/>
+</seealso>
+<example file="refex/ex99"/>
+</element>
+
+
+
+<element name="CompareChar">
+<short>ompare 2 memory buffers character per character</short>
+<descr>
+<p>
+<var>CompareChar</var> compares two memory regions <var>buf1</var>,<var>buf2</var> on a
+character-per-character basis for a total of <var>len</var> characters.
+</p>
+<p>
+The <var>CompareChar0</var> variant compares <var>len</var> bytes, or until
+a zero character is found.
+</p>
+<p>
+The function returns one of the following values:
+</p>
+<dl>
+<dt>-1</dt>
+<dd> if <var>buf1</var> and <var>buf2</var> contain different characters
+in the first <var>len</var> positions, and the first such character is smaller in <var>buf1</var>
+than the character at the same position in <var>buf2</var>.
+</dd>
+<dt>0</dt>
+<dd>  if the first <var>len</var> characters in <var>buf1</var> and <var>buf2</var> are
+equal.
+</dd>
+<dt>1</dt>
+<dd>if <var>buf1</var> and <var>buf2</var> contain different characters
+in the first <var>len</var> positions, and the first such character is larger in
+<var>buf1</var> than the character at the same position in <var>buf2</var>.
+</dd>
+</dl>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="CompareByte"/>
+<link id="CompareWord"/>
+<link id="CompareDWord"/>
+</seealso>
+<example file="refex/ex100"/>
+</element>
+
+
+
+<element name="CompareDWord">
+<short>Compare 2 memory buffers DWord per DWord</short>
+<descr>
+<p>
+<var>CompareDWord</var> compares two memory regions <var>buf1</var>,<var>buf2</var> on a
+DWord-per-DWord basis for a total of <var>len</var> DWords. (A DWord is 4 bytes).
+</p>
+<p>
+The function returns one of the following values:
+</p>
+<dl>
+<dt>-1</dt>
+<dd> if <var>buf1</var> and <var>buf2</var> contain different DWords
+in the first <var>len</var> DWords, and the first such DWord is smaller in <var>buf1</var>
+than the DWord at the same position in <var>buf2</var>.
+</dd>
+<dt>0</dt>
+<dd>  if the first <var>len</var> DWords in <var>buf1</var> and <var>buf2</var> are
+equal.
+</dd>
+<dt>1</dt>
+<dd>if <var>buf1</var> and <var>buf2</var> contain different DWords
+in the first <var>len</var> DWords, and the first such DWord is larger in <var>buf1</var>
+than the DWord at the same position in <var>buf2</var>.
+</dd>
+</dl>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="CompareChar"/>
+<link id="CompareByte"/>
+<link id="CompareWord"/>,
+</seealso>
+<example file="refex/ex101"/>
+</element>
+
+
+
+<element name="CompareWord">
+<short>Compare 2 memory buffers word per word</short>
+<descr>
+<p>
+<var>CompareWord</var> compares two memory regions <var>buf1</var>,<var>buf2</var> on a
+Word-per-Word basis for a total of <var>len</var> Words. (A Word is 2 bytes).
+</p>
+<p>
+The function returns one of the following values:
+</p>
+<dl>
+<dt>-1</dt>
+<dd> if <var>buf1</var> and <var>buf2</var> contain different Words
+in the first <var>len</var> Words, and the first such Word is smaller in <var>buf1</var>
+than the Word at the same position in <var>buf2</var>.
+</dd>
+<dt>0</dt>
+<dd>  if the first <var>len</var> Words in <var>buf1</var> and <var>buf2</var> are
+equal.
+</dd>
+<dt>1</dt>
+<dd>
+if <var>buf1</var> and <var>buf2</var> contain different Words
+in the first <var>len</var> Words, and the first such Word is larger in <var>buf1</var>
+than the Word at the same position in <var>buf2</var>.
+</dd>
+</dl>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="CompareChar"/>
+<link id="CompareByte"/>
+<link id="CompareDWord"/>,
+</seealso>
+<example file="refex/ex102"/>
+</element>
+
+
+
+<element name="Concat">
+<short>Append one string to another.</short>
+<descr>
+<var>Concat</var> concatenates the strings <var>S1</var>,<var>S2</var> etc. to one long
+string. The resulting string is truncated at a length of 255 bytes.
+The same operation can be performed with the <var>+</var> operation.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Copy"/>
+<link id="Delete"/>
+<link id="Insert"/>
+<link id="Pos"/>
+<link id="Length"/>
+</seealso>
+<example file="refex/ex10"/>
+</element>
+
+
+
+<element name="Continue">
+<short>Continue with next loop cycle.</short>
+<descr>
+<p>
+<var>Continue</var> jumps to the end of the current repetitive statement.
+The code between the <var>Continue</var> call and the end of the repetitive
+statement is skipped. The condition of the repetitive statement is then
+checked again.
+</p>
+<p>
+This can be used with <var>For</var>, var{repeat} and <var>While</var> statements.
+</p>
+<p>
+Note that while this is a procedure, <var>Continue</var> is a reserved word
+and hence cannot be redefined.
+</p>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Break"/>
+<link id="Exit"/>
+</seealso>
+<example file="refex/ex86"/>
+</element>
+
+
+
+
+<element name="Copy">
+<short>Copy part of a string.</short>
+<descr>
+<var>Copy</var> returns a string which is a copy if the <var>Count</var> characters
+in <var>S</var>, starting at position <var>Index</var>. If <var>Count</var> is larger than
+the length of the string <var>S</var>, the result is truncated.
+If <var>Index</var> is larger than the length of the string <var>S</var>, then an
+empty string is returned.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Delete"/>
+<link id="Insert"/>
+<link id="Pos"/>
+</seealso>
+<example file="refex/ex11"/>
+</element>
+
+
+
+<element name="Cos">
+<short>Calculate cosine of angle</short>
+<descr>
+<var>Cos</var> returns the cosine of <var>X</var>, where X is an angle, in radians.
+
+If the absolute value of the argument is larger than \var{2\^{}63}, then the
+result is undefined.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Arctan"/>
+<link id="Sin"/>
+</seealso>
+<example file="refex/ex12"/>
+</element>
+
+
+
+<element name="CSeg">
+<short>Return code segment</short>
+<descr>
+<var>CSeg</var> returns the Code segment register. In Free Pascal, it returns always a
+zero, since Free Pascal is a 32 bit compiler.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="DSeg"/>
+<link id="Seg"/>
+<link id="Ofs"/>
+<link id="Ptr"/>
+</seealso>
+<example file="refex/ex13"/>
+</element>
+
+
+
+<element name="Dec">
+<short>Decrease value of variable</short>
+<descr>
+<var>Dec</var> decreases the value of <var>X</var> with <var>Decrement</var>.
+If <var>Decrement</var> isn't specified, then 1 is taken as a default.
+</descr>
+<errors>
+A range check can occur, or an underflow error, if an attempt it made
+to decrease <var>X</var> below its minimum value.
+</errors>
+<seealso>
+<link id="Inc"/>
+</seealso>
+<example file="refex/ex14"/>
+</element>
+
+
+
+<element name="Delete">
+<short>Delete part of a string.</short>
+<descr>
+<var>Delete</var> removes <var>Count</var> characters from string <var>S</var>, starting
+at position <var>Index</var>. All characters after the delected characters are
+shifted <var>Count</var> positions to the left, and the length of the string is adjusted.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Copy"/>
+<link id="Pos"/>
+<link id="Insert"/>
+</seealso>
+<example file="refex/ex15"/>
+</element>
+
+
+
+<element name="Dispose">
+<short>Free dynamically allocated memory</short>
+<descr>
+<p>
+The first form <var>Dispose</var> releases the memory allocated with a call to
+<link id="New"/>. The pointer <var>P</var> must be typed. The released memory is
+returned to the heap.
+</p>
+<p>
+The second form of <var>Dispose</var> accepts as a first parameter a pointer
+to an object type, and as a second parameter the name of a destructor
+of this object. The destructor will be called, and the memory allocated
+for the object will be freed.
+</p>
+</descr>
+<errors>
+An runtime error will occur if the pointer doesn't point to a location in the
+heap.
+</errors>
+<seealso>
+<link id="New"/>
+<link id="Getmem"/>
+<link id="Freemem"/>
+</seealso>
+<example file="refex/ex16"/>
+</element>
+
+
+
+<element name="DSeg">
+<short>Return data segment</short>
+<descr>
+<var>DSeg</var> returns the data segment register. In Free Pascal, it returns always a
+zero, since Free Pascal is a 32 bit compiler.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="CSeg"/>
+<link id="Seg"/>
+<link id="Ofs"/>
+<link id="Ptr"/>
+</seealso>
+<example file="refex/ex17"/>
+</element>
+
+
+
+<element name="Eof">
+<short>Check for end of file</short>
+<descr>
+<var>Eof</var> returns <var>True</var> if the file-pointer has reached the end of the
+file, or if the file is empty. In all other cases <var>Eof</var> returns
+<var>False</var>.
+If no file <var>F</var> is specified, standard input is assumed.
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Eoln"/>
+<link id="Assign"/>
+<link id="Reset"/>
+<link id="Rewrite"/>
+</seealso>
+<example file="refex/ex18"/>
+</element>
+
+
+
+<element name="Eoln">
+<short>Check for end of line</short>
+<descr>
+<var>Eof</var> returns <var>True</var> if the file pointer has reached the end of a
+line, which is demarcated by a line-feed character (ASCII value 10), or if
+the end of the file is reached.
+In all other cases <var>Eof</var> returns <var>False</var>.
+If no file <var>F</var> is specified, standard input is assumed.
+It can only be used on files of type <var>Text</var>.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Eof"/>
+<link id="Assign"/>
+<link id="Reset"/>
+<link id="Rewrite"/>
+</seealso>
+<example file="refex/ex19"/>
+</element>
+
+
+
+<element name="Erase">
+<short>Delete a file from disk</short>
+<descr>
+<var>Erase</var> removes an unopened file from disk. The file should be
+assigned with <var>Assign</var>, but not opened with <var>Reset</var> or <var>Rewrite</var>
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Assign"/>
+</seealso>
+<example file="refex/ex20"/>
+</element>
+
+
+
+<element name="Exclude">
+<short>Exlude element from a set if it is present.</short>
+<descr>
+<p>
+<var>Exclude</var> removes <var>E</var> from the set <var>S</var> if it is
+included inthe set. E should be of the same type as the base type
+of the set <var>S</var>.
+</p>
+<p>
+Thus, the two following statements do the same thing:
+</p>
+<code>
+S:=S-[E];
+Exclude(S,E);
+</code>
+</descr>
+<errors>
+If the type of the element <var>E</var> is not equal to the base type of the
+set <var>S</var>, the compiler will generate an error.
+</errors>
+<seealso>
+<link id="Include"/>
+</seealso>
+<example file="refex/ex111"/>
+</element>
+
+
+
+<element name="Exit">
+<short>Exit current subroutine.</short>
+<descr>
+<var>Exit</var> exits the current subroutine, and returns control to the calling
+routine. If invoked in the main program routine, exit stops the program.
+The optional argument <var>X</var> allows to specify a return value, in the case
+<var>Exit</var> is invoked in a function. The function result will then be
+equal to <var>X</var>.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Halt"/>
+</seealso>
+<example file="refex/ex21"/>
+</element>
+
+
+
+<element name="Exp">
+<short>Exponentiate</short>
+<descr>
+<var>Exp</var> returns the exponent of <var>X</var>, i.e. the number <var>e</var> to the
+power <var>X</var>.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Ln"/>
+<link id="Power"/>
+</seealso>
+<example file="refex/ex22"/>
+</element>
+
+
+
+<element name="Filepos">
+<short>Get position in file</short>
+<descr>
+<var>Filepos</var> returns the current record position of the file-pointer in file
+<var>F</var>. It cannot be invoked with a file of type <var>Text</var>. A compiler error
+will be generated if this is attempted.
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Filesize"/>
+</seealso>
+<example file="refex/ex23"/>
+</element>
+
+
+
+<element name="Filesize">
+<short>Size of file</short>
+<descr>
+<var>Filesize</var> returns the total number of records in file <var>F</var>.
+It cannot be invoked with a file of type <var>Text</var>. (under linux and unix, this
+also means that it cannot be invoked on pipes).
+If <var>F</var> is empty, 0 is returned.
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Filepos"/>
+</seealso>
+<example file="refex/ex24"/>
+</element>
+
+
+
+<element name="FillByte">
+<short>Fill memory region with 8-bit pattern</short>
+<descr>
+<var>FillByte</var> fills the memory starting at <var>X</var> with <var>Count</var> bytes
+with value equal to <var>Value</var>.
+
+This is useful for quickly zeroing out a memory location. When the size of
+the memory location to be filled out is a multiple of 2 bytes, it is better
+ to use <link id="Fillword"/>, and if it is a multiple of 4 bytes it is better
+to use <link id="FillDWord"/>, these routines are optimized for their respective sizes.
+
+</descr>
+<errors>
+No checking on the size of <var>X</var> is done.
+</errors>
+<seealso>
+<link id="Fillchar"/>
+<link id="FillDWord"/>
+<link id="Fillword"/>
+<link id="Move"/>
+</seealso>
+<example file="refex/ex102"/>
+</element>
+
+
+
+<element name="Fillchar">
+<short>Fill memory region with certain character</short>
+<descr>
+<var>Fillchar</var> fills the memory starting at <var>X</var> with <var>Count</var> bytes
+or characters with value equal to <var>Value</var>.
+
+</descr>
+<errors>
+No checking on the size of <var>X</var> is done.
+</errors>
+<seealso>
+<link id="Fillword"/>
+<link id="Move"/>
+<link id="FillByte"/>
+<link id="FillDWord"/>
+</seealso>
+<example file="refex/ex25"/>
+</element>
+
+
+
+<element name="FillDWord">
+<short>Fill memory region with 32-bit pattern</short>
+<descr>
+<var>Fillword</var> fills the memory starting at <var>X</var> with <var>Count</var> DWords
+with value equal to <var>Value</var>. A DWord is 4 bytes in size.
+
+</descr>
+<errors>
+No checking on the size of <var>X</var> is done.
+</errors>
+<seealso>
+<link id="FillByte"/>
+<link id="Fillchar"/>
+<link id="Fillword"/>
+<link id="Move"/>
+</seealso>
+<example file="refex/ex103"/>
+</element>
+
+
+
+<element name="Fillword">
+<short>Fill memory region with 16-bit pattern</short>
+<descr>
+<var>Fillword</var> fills the memory starting at <var>X</var> with <var>Count</var> words
+with value equal to <var>Value</var>. A word is 2 bytes in size.
+</descr>
+<errors>
+No checking on the size of <var>X</var> is done.
+</errors>
+<seealso>
+<link id="Fillchar"/>
+<link id="Move"/>
+</seealso>
+<example file="refex/ex76"/>
+</element>
+
+
+
+<element name="Flush">
+<short>Write file buffers to disk</short>
+<descr>
+<var>Flush</var> empties the internal buffer of an opened file <var>F</var> and writes the
+contents to disk. The file is \textit{not} closed as a result of this call.
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Close"/>
+</seealso>
+<example file="refex/ex26"/>
+</element>
+
+
+
+<element name="Frac">
+<short>Return fractional part of floating point value.</short>
+<descr>
+<var>Frac</var> returns the non-integer part of <var>X</var>.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Round"/>
+<link id="Int"/>
+</seealso>
+<example file="refex/ex27"/>
+</element>
+
+
+
+<element name="Freemem">
+<short>Release allocated memory</short>
+<descr>
+<var>Freemem</var> releases the memory occupied by the pointer <var>P</var>, of size
+<var>Count</var> (in bytes), and returns it to the heap. <var>P</var> should point to the memory
+allocated to a dynamic variable.
+</descr>
+<errors>
+An error will occur when <var>P</var> doesn't point to the heap.
+</errors>
+<seealso>
+<link id="Getmem"/>
+<link id="New"/>
+<link id="Dispose"/>
+</seealso>
+<example file="refex/ex28"/>
+</element>
+
+
+<element name="Getdir">
+<short>Return the current directory</short>
+<descr>
+<var>Getdir</var> returns in <var>dir</var> the current directory on the drive
+<var>drivenr</var>, where {drivenr} is 1 for the first floppy drive, 3 for the
+first hard disk etc. A value of 0 returns the directory on the current disk.
+On linux and unix systems, <var>drivenr</var> is ignored, as there is only one
+directory tree.
+</descr>
+<errors>
+An error is returned under dos, if the drive requested isn't ready.
+</errors>
+<seealso>
+<link id="Chdir"/>
+</seealso>
+<example file="refex/ex29"/>
+</element>
+
+
+
+<element name="Getmem">
+<short>Allocate new memory on the heap</short>
+<descr>
+<p>
+<var>Getmem</var> reserves <var>Size</var> bytes memory on the heap, and returns a
+pointer to this memory in <var>p</var>. If no more memory is available, nil is
+returned.
+</p>
+<p>
+For an example, see <link id="Freemem"/>.
+</p>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Freemem"/>
+<link id="Dispose"/>
+<link id="New"/>
+</seealso>
+</element>
+
+<element name="GetMemoryManager">
+<short>Return current memory manager</short>
+<descr>
+<p>
+<var>GetMemoryManager</var> stores the current Memory Manager record in
+<var>MemMgr</var>.
+</p>
+<p>
+For an example, see \progref.
+</p>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="SetMemoryManager"/>
+<link id="IsMemoryManagerSet"/>.
+</seealso>
+</element>
+
+
+<element name="Halt">
+<short>Stop program execution.</short>
+<descr>
+<var>Halt</var> stops program execution and returns control to the calling
+program. The optional argument <var>Errnum</var> specifies an exit value. If
+omitted, zero is returned.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Exit"/>
+</seealso>
+<example file="refex/ex30"/>
+</element>
+
+
+
+<element name="HexStr">
+<short>Convert integer value to string with hexadecimal representation.</short>
+<descr>
+<var>HexStr</var> returns a string with the hexadecimal representation
+of <var>Value</var>. The string has exactly <var>cnt</var> charaters.
+ (i.e. only the <var>cnt</var> rightmost nibbles are taken into account)
+To have a complete representation of a Longint-type value, 8
+nibbles are needed, i.e. <var>cnt=8</var>.
+
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Str"/>
+<link id="Val"/>
+<link id="BinStr"/>
+</seealso>
+<example file="refex/ex81"/>
+</element>
+
+
+
+<element name="Hi">
+<short>Return high byte/word of value.</short>
+<descr>
+<var>Hi</var> returns the high byte or word from <var>X</var>, depending on the size
+of X. If the size of X is 4, then the high word is returned. If the size is
+2 then the high byte is returned.
+<var>Hi</var> cannot be invoked on types of size 1, such as byte or char.
+</descr>
+<errors>
+None
+</errors>
+<seealso>
+<link id="Lo"/>
+</seealso>
+<example file="refex/ex31"/>
+</element>
+
+
+
+<element name="High">
+<short>Return highest index of open array or enumerated</short>
+<descr>
+<p>
+The return value of <var>High</var> depends on it's argument:
+</p>
+<ol>
+<li> If the argument is an ordinal type, <var>High</var> returns the highest
+ value in the range of the given ordinal type.
+</li>
+<li> If the argument is an array type or an array type variable then
+<var>High</var> returns the highest possible value of it's index.
+</li>
+<li> If the argument is an open array identifier in a function or
+procedure, then <var>High</var> returns the highest index of the array, as if the
+array has a zero-based index.
+</li>
+</ol>
+<p>
+The return type is always the same type as the type of the argument
+(This can lead to some nasty surprises !).
+</p>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Low"/>
+<link id="Ord"/>
+<link id="Pred"/>
+<link id="Succ"/>
+</seealso>
+<example file="refex/ex80"/>
+</element>
+
+
+
+<element name="Inc">
+<short>Increase value of integer variable</short>
+<descr>
+<var>Inc</var> increases the value of <var>X</var> with <var>Increment</var>.
+If <var>Increment</var> isn't specified, then 1 is taken as a default.
+</descr>
+<errors>
+If range checking is on, then A range check can occur, or an overflow
+error, when an attempt is made to increase <var>X</var> over its maximum value.
+</errors>
+<seealso>
+<link id="Dec"/>
+</seealso>
+<example file="refex/ex32"/>
+</element>
+
+
+
+<element name="Include">
+<short>Include element in set if it was not yet present.</short>
+<descr>
+<p>
+<var>Include</var> includes <var>E</var> in the set <var>S</var> if it is
+not yet part of the set. E should be of the same type as the base type
+of the set <var>S</var>.
+</p>
+<p>
+Thus, the two following statements do the same thing:
+</p>
+<code>
+S:=S+[E];
+Include(S,E);
+</code>
+<p>
+For an example, see <link id="Exclude"/>
+</p>
+</descr>
+<errors>
+If the type of the element <var>E</var> is not equal to the base type of the
+set <var>S</var>, the compiler will generate an error.
+</errors>
+<seealso>
+<link id="Exclude"/>
+</seealso>
+</element>
+
+
+<element name="IndexByte">
+<short>Search for a byte in a memory range.</short>
+<descr>
+<var>IndexByte</var> searches the memory at <var>buf</var> for maximally <var>len</var>
+positions for the byte <var>b</var> and returns it's position if it found one.
+If <var>b</var> is not found then -1 is returned.
+
+The position is zero-based.
+</descr>
+<errors>
+<var>Buf</var> and <var>Len</var> are not checked to see if they are valid values.
+</errors>
+<seealso>
+<link id="IndexChar"/>
+<link id="IndexDWord"/>
+<link id="IndexWord"/>
+<link id="CompareByte"/>
+</seealso>
+<example file="refex/ex105"/>
+</element>
+
+
+
+<element name="IndexChar">
+<short>Search for a character in a memory range.</short>
+<descr>
+<var>IndexChar</var> searches the memory at <var>buf</var> for maximally <var>len</var>
+positions for the character <var>b</var> and returns it's position if it found one.
+If <var>b</var> is not found then -1 is returned.
+
+The position is zero-based. The <var>IndexChar0</var> variant stops looking if
+a null character is found, and returns -1 in that case.
+</descr>
+<errors>
+<var>Buf</var> and <var>Len</var> are not checked to see if they are valid values.
+</errors>
+<seealso>
+<link id="IndexByte"/>
+<link id="IndexDWord"/>
+<link id="IndexWord"/>
+<link id="CompareChar"/>
+</seealso>
+<example file="refex/ex108"/>
+</element>
+
+
+
+<element name="IndexDWord">
+<short>Search for a DWord value in a memory range.</short>
+<descr>
+<var>IndexChar</var> searches the memory at <var>buf</var> for maximally <var>len</var>
+positions for the DWord <var>DW</var> and returns it's position if it found one.
+If <var>DW</var> is not found then -1 is returned.
+
+The position is zero-based.
+</descr>
+<errors>
+<var>Buf</var> and <var>Len</var> are not checked to see if they are valid values.
+</errors>
+<seealso>
+<link id="IndexByte"/>
+<link id="IndexChar"/>
+<link id="IndexWord"/>
+<link id="CompareDWord"/>
+</seealso>
+<example file="refex/ex106"/>
+</element>
+
+
+
+<element name="IndexWord">
+<short>Search for a WORD value in a memory range.</short>
+<descr>
+<var>IndexChar</var> searches the memory at <var>buf</var> for maximally <var>len</var>
+positions for the Word <var>W</var> and returns it's position if it found one.
+If <var>W</var> is not found then -1 is returned.
+</descr>
+<errors>
+<var>Buf</var> and <var>Len</var> are not checked to see if they are valid values.
+</errors>
+<seealso>
+<link id="IndexByte"/>
+<link id="IndexDWord"/>
+<link id="IndexChar"/>
+<link id="CompareWord"/>
+</seealso>
+<example file="refex/ex107"/>
+</element>
+
+
+
+<element name="Insert">
+<short>Insert one string in another.</short>
+<descr>
+<var>Insert</var> inserts string <var>Source</var> in string <var>S</var>, at position
+<var>Index</var>, shifting all characters after <var>Index</var> to the right. The
+resulting string is truncated at 255 characters, if needed. (i.e. for
+shortstrings)
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Delete"/>
+<link id="Copy"/>
+<link id="Pos"/>
+</seealso>
+<example file="refex/ex33"/>
+</element>
+
+
+
+<element name="IsMemoryManagerSet">
+<short>Is the memory manager set</short>
+<descr>
+<var>IsMemoryManagerSet</var> will return <var>True</var> if the memory manager has
+been set to another value than the system heap manager, it will return
+<var>False</var> otherwise.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="SetMemoryManager"/>
+<link id="GetMemoryManager"/>
+</seealso>
+</element>
+
+<element name="Int">
+<short>Calculate integer part of floating point value.</short>
+<descr>
+<var>Int</var> returns the integer part of any Real <var>X</var>, as a Real.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Frac"/>
+<link id="Round"/>
+</seealso>
+<example file="refex/ex34"/>
+</element>
+
+
+
+<element name="IOresult">
+<short>Return result of last file IO operation</short>
+<descr>
+<p>
+IOresult contains the result of any input/output call, when the
+<var>{\$i-}</var> compiler directive is active, disabling IO checking.
+When the flag is read, it is reset to zero.
+If <var>IOresult</var> is zero, the operation completed successfully. If
+non-zero, an error occurred. The following errors can occur:
+</p>
+<p>
+dos errors :
+</p>
+<dl><dt>2</dt><dd> File not found.</dd>
+<dt>3</dt><dd> Path not found.</dd>
+<dt>4</dt><dd> Too many open files.</dd>
+<dt>5</dt><dd> Access denied.</dd>
+<dt>6</dt><dd> Invalid file handle.</dd>
+<dt>12</dt><dd> Invalid file-access mode.</dd>
+<dt>15</dt><dd> Invalid disk number.</dd>
+<dt>16</dt><dd> Cannot remove current directory.</dd>
+<dt>17</dt><dd> Cannot rename across volumes.</dd>
+</dl>
+<p>
+I/O errors :
+</p>
+<dl>
+<dt>100</dt><dd> Error when reading from disk.</dd>
+<dt>101</dt><dd> Error when writing to disk.</dd>
+<dt>102</dt><dd> File not assigned.</dd>
+<dt>103</dt><dd> File not open.</dd>
+<dt>104</dt><dd> File not opened for input.</dd>
+<dt>105</dt><dd> File not opened for output.</dd>
+<dt>106</dt><dd> Invalid number.</dd>
+</dl>
+<p>
+Fatal errors :
+</p>
+<dl>
+<dt>150</dt><dd> Disk is write protected.</dd>
+<dt>151</dt><dd> Unknown device.</dd>
+<dt>152</dt><dd> Drive not ready.</dd>
+<dt>153</dt><dd> Unknown command.</dd>
+<dt>154</dt><dd> CRC check failed.</dd>
+<dt>155</dt><dd> Invalid drive specified..</dd>
+<dt>156</dt><dd> Seek error on disk.</dd>
+<dt>157</dt><dd> Invalid media type.</dd>
+<dt>158</dt><dd> Sector not found.</dd>
+<dt>159</dt><dd> Printer out of paper.</dd>
+<dt>160</dt><dd> Error when writing to device.</dd>
+<dt>161</dt><dd> Error when reading from device.</dd>
+<dt>162</dt><dd> Hardware failure.</dd>
+</dl>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+All I/O functions.
+</seealso>
+<example file="refex/ex35"/>
+</element>
+
+
+
+<element name="Length">
+<short>Calculate length of a string.</short>
+<descr>
+<var>Length</var> returns the length of the string <var>S</var>, which is limited
+to 255 for shortstrings. If the strings <var>S</var> is empty, 0 is returned.
+
+<em> Note:</em> The length of the string <var>S</var> is stored in <var>S[0]</var> for
+shortstrings only. The <var>Length</var> fuction should always be used on 
+ansistrings and widestrings.
+
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Pos"/>
+</seealso>
+<example file="refex/ex36"/>
+</element>
+
+
+
+<element name="Ln">
+<short>Calculate logarithm</short>
+<descr>
+<var>Ln</var> returns the natural logarithm of the Real parameter <var>X</var>.
+<var>X</var> must be positive.
+</descr>
+<errors>
+An run-time error will occur when <var>X</var> is negative.
+</errors>
+<seealso>
+<link id="Exp"/>
+<link id="Power"/>
+</seealso>
+<example file="refex/ex37"/>
+</element>
+
+
+
+<element name="Lo">
+<short>Return low byte/word of value.</short>
+<descr>
+<var>Lo</var> returns the low byte of its argument if this is of type
+<var>Integer</var> or
+<var>Word</var>. It returns the low word of its argument if this is of type
+<var>Longint</var> or <var>Cardinal</var>.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Ord"/>
+<link id="Chr"/>
+<link id="Hi"/>
+</seealso>
+<example file="refex/ex38"/>
+</element>
+
+
+
+<element name="LongJmp">
+<short>Jump to address.</short>
+<descr>
+<p>
+<var>LongJmp</var> jumps to the adress in the <var>env</var> <var>jmp_buf</var>,
+and restores the registers that were stored in it at the corresponding
+<link id="SetJmp"/> call.
+In effect, program flow will continue at the <var>SetJmp</var> call, which will
+return <var>value</var> instead of 0. If a <var>value</var> equal to zero is passed,
+it will be converted to 1 before passing it on. The call will not return, so it must be
+used with extreme care.
+This can be used for error recovery, for instance when a segmentation fault
+occurred.
+</p>
+<p>
+For an example, see <link id="SetJmp"/>
+</p>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="SetJmp"/>
+</seealso>
+</element>
+
+<element name="Low">
+<short>Return lowest index of open array or enumerated</short>
+<descr>
+<p>
+ The return value of <var>Low</var> depends on it's argument:
+</p>
+<ol>
+<li> If the argument is an ordinal type, <var>Low</var> returns the lowest
+value in the range of the given ordinal type.
+</li>
+<li> If the argument is an array type or an array type variable then
+<var>Low</var> returns the lowest possible value of it's index.
+</li>
+</ol>
+<p>
+The return type is always the same type as the type of the argument.
+</p>
+<p>
+for an example, see <link id="High"/>.
+</p>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="High"/>
+<link id="Ord"/>
+<link id="Pred"/>
+<link id="Succ"/>
+</seealso>
+</element>
+
+<element name="Lowercase">
+<short>Return lowercase version of a string.</short>
+<descr>
+<var>Lowercase</var> returns the lowercase version of its argument <var>C</var>.
+If its argument is a string, then the complete string is converted to
+lowercase. The type of the returned value is the same as the type of the
+argument.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Upcase"/>
+</seealso>
+<example file="refex/ex73"/>
+</element>
+
+
+
+<element name="Mark">
+<short>Mark current memory position</short>
+<descr>
+This routine is here for compatibility with Turbo Pascal, but
+it is not implemented and currently does nothing.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Getmem"/>
+<link id="Freemem"/>
+<link id="New"/>
+<link id="Dispose"/>
+<link id="Maxavail"/>
+</seealso>
+</element>
+
+<element name="Maxavail">
+<short>Return size of largest free memory block</short>
+<descr>
+<p>
+<var>Maxavail</var> returns the size, in bytes, of the biggest free memory block in
+the heap.
+</p>
+<remark>
+The heap grows dynamically if more memory is needed than is available.
+</remark>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Memavail"/>
+<link id="Freemem"/>
+<link id="Getmem"/>
+</seealso>
+<example file="refex/ex40"/>
+</element>
+
+
+
+<element name="Memavail">
+<short>Return total available memory</short>
+<descr>
+<p>
+<var>Memavail</var> returns the size, in bytes, of the free heap memory.
+</p>
+<remark>
+The heap grows dynamically if more memory is needed than is available. The
+heap size is not equal to the size of the memory available to the
+operating system, it is internal to the programs created by Free Pascal.
+</remark>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Maxavail"/>
+<link id="Freemem"/>
+<link id="Getmem"/>
+</seealso>
+<example file="refex/ex41"/>
+</element>
+
+
+
+<element name="Mkdir">
+<short>Create a new directory.</short>
+<descr>
+<p>
+<var>Mkdir</var> creates a new  directory <var>S</var>.
+</p>
+<p>
+For an example, see <link id="Rmdir"/>.
+</p>
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Chdir"/>
+<link id="Rmdir"/>
+</seealso>
+</element>
+
+<element name="Move">
+<short>Move data from one location in memory to another</short>
+<descr>
+<var>Move</var> moves <var>Count</var> bytes from <var>Source</var> to <var>Dest</var>.
+</descr>
+<errors>
+If either <var>Dest</var> or <var>Source</var> is outside the accessible memory for
+the process, then a run-time error will be generated.
+</errors>
+<seealso>
+<link id="Fillword"/>
+<link id="Fillchar"/>
+</seealso>
+<example file="refex/ex42"/>
+</element>
+
+
+
+<element name="MoveChar0">
+<short>Move data till first zero character</short>
+<descr>
+<var>MoveChar0</var> moves <var>Count</var> bytes from <var>Src</var> to <var>Dest</var>, and
+stops moving if a zero character is found.
+</descr>
+<errors>
+No checking is done to see if <var>Count</var> stays within the memory allocated
+to the process.
+</errors>
+<seealso>
+<link id="Move"/>
+</seealso>
+<example file="refex/ex109"/>
+</element>
+
+
+
+<element name="New">
+<short>Dynamically allocate memory for variable</short>
+<descr>
+<p>
+<var>New</var> allocates a new instance of the type pointed to by <var>P</var>, and
+puts the address in <var>P</var>.
+If P is an object, then it is possible to
+specify the name of the constructor with which the instance will be created.
+</p>
+<p>
+For an example, see <link id="Dispose"/>.
+</p>
+</descr>
+<errors>
+If not enough memory is available, <var>Nil</var> will be returned.
+</errors>
+<seealso>
+<link id="Dispose"/>
+<link id="Freemem"/>
+<link id="Getmem"/>
+<link id="Memavail"/>,
+<link id="Maxavail"/>
+</seealso>
+</element>
+
+<element name="Odd">
+<short>Is a value odd or even ?</short>
+<descr>
+<var>Odd</var> returns <var>True</var> if <var>X</var> is odd, or <var>False</var> otherwise.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Abs"/>
+<link id="Ord"/>
+</seealso>
+<example file="refex/ex43"/>
+</element>
+
+
+
+<element name="OctStr">
+<short>Convert integer to a string with octal representation.</short>
+<descr>
+<var>OctStr</var> returns a string with the octal representation
+of <var>Value</var>. The string has exactly <var>cnt</var> charaters.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Str"/>
+<link id="Val"/>
+<link id="BinStr"/>
+<link id="HexStr"/>
+</seealso>
+<example file="refex/ex112"/>
+</element>
+
+
+
+<element name="Ofs">
+<short>Return offset of a variable.</short>
+<descr>
+<var>Ofs</var> returns the offset of the address of a variable.
+This function is only supported for compatibility. In Free Pascal, it
+returns always the complete address of the variable, since Free Pascal is a 32 bit
+compiler.
+
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="DSeg"/>
+<link id="CSeg"/>
+<link id="Seg"/>
+<link id="Ptr"/>
+</seealso>
+<example file="refex/ex44"/>
+</element>
+
+
+
+<element name="Ord">
+<short>Return ordinal value of an ordinal type.</short>
+<descr>
+<var>Ord</var> returns the Ordinal value of a ordinal-type variable <var>X</var>.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Chr"/>
+<link id="Succ"/>
+<link id="Pred"/>
+<link id="High"/>
+<link id="Low"/>
+</seealso>
+<example file="refex/ex45"/>
+</element>
+
+
+
+<element name="Paramcount">
+<short>Return number of command-line parameters passed to the program.</short>
+<descr>
+<var>Paramcount</var> returns the number of command-line arguments. If no
+arguments were given to the running program, <var>0</var> is returned.
+
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Paramstr"/>
+</seealso>
+<example file="refex/ex46"/>
+</element>
+
+
+
+<element name="Paramstr">
+<short>Return value of a command-line argument.</short>
+<descr>
+<p>
+<var>Paramstr</var> returns the <var>L</var>-th command-line argument. <var>L</var> must
+be between <var>0</var> and <var>Paramcount</var>, these values included.
+The zeroth argument is the path and file name with which the program was
+started.
+</p>
+<p>
+The command-line parameters will be truncated to a length of 255,
+even though the operating system may support bigger command-lines.
+The <var>Objpas</var> unit (used in <var>objfpc</var> or <var>delphi</var> mode) define versions
+of <var>Paramstr</var> which return the full-length command-line arguments.
+</p>
+<p>
+When the complete command-line must be accessed, the <var>argv</var> pointer
+should be used to retrieve the real values of the command-line parameters.
+</p>
+<p>
+For an example, see <link id="Paramcount"/>.
+</p>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Paramcount"/>
+</seealso>
+</element>
+
+<element name="Pi">
+<short>Return the value of PI.</short>
+<descr>
+<var>Pi</var> returns the value of Pi (3.1415926535897932385).
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Cos"/>
+<link id="Sin"/>
+</seealso>
+<example file="refex/ex47"/>
+</element>
+
+
+
+<element name="Pos">
+<short>Search for substring in a string.</short>
+<descr>
+<var>Pos</var> returns the index of <var>Substr</var> in <var>S</var>, if <var>S</var> contains
+<var>Substr</var>. In case <var>Substr</var> isn't found, <var>0</var> is returned.
+The search is case-sensitive.
+</descr>
+<errors>
+None
+</errors>
+<seealso>
+<link id="Length"/>
+<link id="Copy"/>
+<link id="Delete"/>
+<link id="Insert"/>
+</seealso>
+<example file="refex/ex48"/>
+</element>
+
+
+
+<element name="Power">
+<short>Raise float to integer power</short>
+<descr>
+<p>
+<var>Power</var> returns the value of <var>base</var> to the power <var>expon</var>.
+<var>Base</var> and <var>expon</var> can be of type Longint, in which case the
+result will also be a Longint.
+</p>
+<p>
+The function actually returns <var>Exp(expon*Ln(base))</var>
+</p>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Exp"/>
+<link id="Ln"/>
+</seealso>
+<example file="refex/ex78"/>
+</element>
+
+
+
+<element name="Pred">
+<short>Return previous element for an ordinal type.</short>
+<descr>
+<p>
+<var>Pred</var> returns the element that precedes the element that was passed
+to it. If it is applied to the first value of the ordinal type, and the
+program was compiled with range checking on (\var{\{\$R+\}}, then a run-time
+error will be generated.
+</p>
+<p>
+for an example, see <link id="Ord"/>
+</p>
+</descr>
+<errors>
+Run-time error 201 is generated when the result is out of
+range.
+</errors>
+<seealso>
+<link id="Ord"/>
+<link id="Pred"/>
+<link id="High"/>
+<link id="Low"/>
+</seealso>
+</element>
+
+
+<element name="Ptr">
+<short>Combine segment and offset to pointer</short>
+<descr>
+<p>
+<var>Ptr</var> returns a pointer, pointing to the address specified by
+segment <var>Sel</var> and offset <var>Off</var>.
+</p>
+<remark>
+<ol>
+<li> In the 32-bit flat-memory model supported by Free Pascal, this
+function is obsolete.
+</li>
+<li> The returned address is simply the offset.
+</li>
+</ol>
+</remark>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Addr"/>
+</seealso>
+<example file="refex/ex59"/>
+</element>
+
+
+
+<element name="Random">
+<short>Generate random number</short>
+<descr>
+<var>Random</var> returns a random number larger or equal to <var>0</var> and
+strictly less than <var>L</var>.
+If the argument <var>L</var> is omitted, a Real number between 0 and 1 is returned.
+(0 included, 1 excluded)
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Randomize"/>
+</seealso>
+<example file="refex/ex49"/>
+</element>
+
+
+
+<element name="Randomize">
+<short>Initialize random number generator</short>
+<descr>
+<p>
+<var>Randomize</var> initializes the random number generator of Free Pascal, by giving
+a value to <var>Randseed</var>, calculated with the system clock.
+</p>
+<p>
+For an example, see <link id="Random"/>.
+</p>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Random"/>
+</seealso>
+</element>
+
+<element name="Read">
+<short>Read from a text file into variable</short>
+<descr>
+<var>Read</var> reads one or more values from a file <var>F</var>, and stores the
+result in <var>V1</var>, <var>V2</var>, etc.; If no file <var>F</var> is specified, then
+standard input is read.
+If <var>F</var> is of type <var>Text</var>, then the variables <var>V1, V2</var> etc. must be
+of type <var>Char</var>, <var>Integer</var>, <var>Real</var>, <var>String</var> or <var>PChar</var>.
+If <var>F</var> is a typed file, then each of the variables must be of the type
+specified in the declaration of <var>F</var>. Untyped files are not allowed as an
+argument.
+</descr>
+<errors>
+If no data is available, a run-time error is generated. This behavior can
+be controlled with the \var{\{\$i\}} compiler switch.
+</errors>
+<seealso>
+<link id="Readln"/>
+<link id="Blockread"/>
+<link id="Write"/>
+<link id="Blockwrite"/>
+</seealso>
+<example file="refex/ex50"/>
+</element>
+
+
+
+<element name="Readln">
+<short>Read from a text file into variable and goto next line</short>
+<descr>
+<p>
+<var>Read</var> reads one or more values from a file <var>F</var>, and stores the
+result in <var>V1</var>, <var>V2</var>, etc. After that it goes to the next line in
+the file. The end of the line is marked by the <var>LineEnding</var>
+character sequence (which is platform dependent). The end-of-line marker is
+not considered part of the line and is ignored.
+</p>
+<p>
+If no file <var>F</var> is specified, then standard input is read.
+The variables <var>V1, V2</var> etc. must be of type <var>Char</var>, <var>Integer</var>,
+<var>Real</var>, <var>String</var> or <var>PChar</var>.
+</p>
+<p>
+For an example, see <link id="Read"/>.
+</p>
+</descr>
+<errors>
+If no data is available, a run-time error is generated. This behavior can
+be controlled with the \var{\{\$i\}} compiler switch.
+</errors>
+<seealso>
+<link id="Read"/>
+<link id="Blockread"/>
+<link id="Write"/>
+<link id="Blockwrite"/>
+</seealso>
+</element>
+
+
+<element name="Real2Double">
+<short>Convert Turbo Pascal style real to double.</short>
+<descr>
+<p>
+The <var>Real2Double</var> function converts a Turbo Pascal style real (6 bytes long) to
+a native Free Pascal double type. It can be used e.g. to read old binary TP files with
+FPC and convert them to Free Pacal binary files.
+</p>
+<p>
+Note that the assignment operator has been overloaded so a <var>Real48</var> type
+can be assigned directly to a double or extended.
+</p>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+</seealso>
+<example file="refex/ex110"/>
+</element>
+
+
+
+<element name="Release">
+<short>Release memory above mark point</short>
+<descr>
+This routine is here for compatibility with Turbo Pascal, but
+it is not implemented and currently does nothing.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Mark"/>
+<link id="Memavail"/>
+<link id="Maxavail"/>
+<link id="Getmem"/>
+<link id="Freemem"/>
+<link id="New"/>
+<link id="Dispose"/>
+</seealso>
+</element>
+
+<element name="Rename">
+<short>Rename file on disk</short>
+<descr>
+<var>Rename</var> changes the name of the assigned file <var>F</var> to <var>S</var>.
+<var>F</var>
+must be assigned, but not opened.
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Erase"/>
+</seealso>
+<example file="refex/ex77"/>
+</element>
+
+
+
+<element name="Reset">
+<short>Open file for reading</short>
+<descr>
+<var>Reset</var> opens a file <var>F</var> for reading. <var>F</var> can be any file type.
+If <var>F</var> is a text file, or refers to standard I/O (e.g : '') then it is 
+opened read-only, otherwise it is opened using the mode specified in 
+<var>filemode</var>.
+
+If <var>F</var> is an untyped file, the record size can be specified in
+the optional parameter <var>L</var>. A default value of 128 is used.
+
+File sharing is not taken into account when calling <var>Reset</var>.
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Rewrite"/>
+<link id="Assign"/>
+<link id="Close"/>
+<link id="Append"/>
+</seealso>
+<example file="refex/ex51"/>
+</element>
+
+
+
+<element name="Rewrite">
+<short>Open file for writing</short>
+<descr>
+<var>Rewrite</var> opens a file <var>F</var> for writing. <var>F</var> can be any file type.
+If <var>F</var> is an untyped or typed file, then it is opened for reading and
+writing. If <var>F</var> is an untyped file, the record size can be specified in
+the optional parameter <var>L</var>. Default a value of 128 is used.
+if <var>Rewrite</var> finds a file with the same name as <var>F</var>, this file is
+truncated to length <var>0</var>. If it doesn't find such a file, a new file is
+created.
+
+Contrary to Turbo Pascal, Free Pascal opens the file with mode <var>fmoutput</var>. If it should
+be opened in <var>fminout</var> mode, an extra call to <link id="Reset"/> is needed.
+
+File sharing is not taken into account when calling <var>Rewrite</var>.
+
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Reset"/>
+<link id="Assign"/>
+<link id="Close"/>
+<link id="Flush"/>
+<link id="Append"/>
+</seealso>
+<example file="refex/ex52"/>
+</element>
+
+
+
+<element name="Rmdir">
+<short>Remove directory when empty.</short>
+<descr>
+<var>Rmdir</var> removes the directory <var>S</var>.
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Chdir"/>
+<link id="Mkdir"/>
+</seealso>
+<example file="refex/ex53"/>
+</element>
+
+
+
+<element name="Round">
+<short>Round floating point value to nearest integer number.</short>
+<descr>
+<var>Round</var> rounds <var>X</var> to the closest integer, which may be bigger or
+smaller than <var>X</var>.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Frac"/>
+<link id="Int"/>
+<link id="Trunc"/>
+</seealso>
+<example file="refex/ex54"/>
+</element>
+
+
+
+<element name="Runerror">
+<short>Generate a run-time error.</short>
+<descr>
+<var>Runerror</var> stops the execution of the program, and generates a
+run-time error <var>ErrorCode</var>.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Exit"/>
+<link id="Halt"/>
+</seealso>
+<example file="refex/ex55"/>
+</element>
+
+
+
+<element name="Seek">
+<short>Set file position</short>
+<descr>
+<var>Seek</var> sets the file-pointer for file <var>F</var> to record Nr. <var>Count</var>.
+The first record in a file has <var>Count=0</var>. F can be any file type, except
+<var>Text</var>. If <var>F</var> is an untyped file, with no record size specified in
+<link id="Reset"/> or <link id="Rewrite"/>, 128 is assumed.
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Eof"/>
+<link id="SeekEof"/>
+<link id="SeekEoln"/>
+</seealso>
+<example file="refex/ex56"/>
+</element>
+
+
+
+<element name="SeekEof">
+<short>Set file position to end of file</short>
+<descr>
+<var>SeekEof</var> returns <var>True</var> is the file-pointer is at the end of the
+file. It ignores all whitespace.
+Calling this function has the effect that the file-position is advanced
+until the first non-whitespace character or the end-of-file marker is
+reached.
+If the end-of-file marker is reached, <var>True</var> is returned. Otherwise,
+False is returned.
+If the parameter <var>F</var> is omitted, standard <var>Input</var> is assumed.
+
+</descr>
+<errors>
+A run-time error is generated if the file <var>F</var> isn't opened.
+</errors>
+<seealso>
+<link id="Eof"/>
+<link id="SeekEoln"/>
+<link id="Seek"/>
+</seealso>
+<example file="refex/ex57"/>
+</element>
+
+
+
+<element name="SeekEoln">
+<short>Set file position to end of line</short>
+<descr>
+<var>SeekEoln</var> returns <var>True</var> is the file-pointer is at the end of the
+current line. It ignores all whitespace.
+Calling this function has the effect that the file-position is advanced
+until the first non-whitespace character or the end-of-line marker is
+reached.
+If the end-of-line marker is reached, <var>True</var> is returned. Otherwise,
+False is returned.
+The end-of-line marker is defined as <var>#10</var>, the LineFeed character.
+If the parameter <var>F</var> is omitted, standard <var>Input</var> is assumed.
+</descr>
+<errors>
+A run-time error is generated if the file <var>F</var> isn't opened.
+</errors>
+<seealso>
+<link id="Eof"/>
+<link id="SeekEof"/>
+<link id="Seek"/>
+</seealso>
+<example file="refex/ex58"/>
+</element>
+
+
+
+<element name="Seg">
+<short>Return segment</short>
+<descr>
+<var>Seg</var> returns the segment of the address of a variable.
+This function is only supported for compatibility. In Free Pascal, it
+returns always 0, since Free Pascal is a 32 bit compiler, segments have no meaning.
+
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="DSeg"/>
+<link id="CSeg"/>
+<link id="Ofs"/>
+<link id="Ptr"/>
+</seealso>
+<example file="refex/ex60"/>
+</element>
+
+
+
+<element name="SetMemoryManager">
+<short>Set a memory manager</short>
+<descr>
+<p>
+<var>SetMemoryManager</var> sets the current memory manager record to
+<var>MemMgr</var>.
+</p>
+<p>
+For an example, see \progref.
+</p>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="GetMemoryManager"/>
+<link id="IsMemoryManagerSet"/>
+</seealso>
+</element>
+
+
+<element name="SetJmp">
+<short>Save current execution point.</short>
+<descr>
+<var>SetJmp</var> fills <var>env</var> with the necessary data for a jump back to the
+point where it was called. It returns zero if called in this way.
+If the function returns nonzero, then it means that a call to <link id="LongJmp"/>
+with <var>env</var> as an argument was made somewhere in the program.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="LongJmp"/>
+</seealso>
+<example file="refex/ex79"/>
+</element>
+
+
+
+
+<element name="SetLength">
+<short>Set length of a string.</short>
+<descr>
+<var>SetLength</var> sets the length of the string <var>S</var> to <var>Len</var>. <var>S</var>
+can be an ansistring, a short string or a widestring.
+For <var>ShortStrings</var>, <var>Len</var> can maximally be 255. For <var>AnsiStrings</var>
+it can have any value. For <var>AnsiString</var> strings, <var>SetLength</var> {\em
+must} be used to set the length of the string.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Length"/>
+</seealso>
+<example file="refex/ex85"/>
+</element>
+
+
+
+<element name="SetString">
+<short>Set length of a string and copy buffer.</short>
+<descr>
+<var>SetString</var> sets the length of the string <var>S</var> to <var>Len</var> and
+if <var>Buf</var> is non-nil, copies <var>Len</var> characters from <var>Buf</var> 
+into <var>S</var>.  <var>S</var> can be an ansistring, a short string or a widestring.
+For <var>ShortStrings</var>, <var>Len</var> can maximally be 255. 
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="SetLength"/>
+</seealso>
+</element>
+
+
+
+<element name="SetTextBuf">
+<short>Set size of text file internal buffer</short>
+<descr>
+<p>
+<var>SetTextBuf</var> assigns an I/O buffer to a text file. The new buffer is
+located at <var>Buf</var> and is <var>Size</var> bytes long. If <var>Size</var> is omitted,
+then <var>SizeOf(Buf)</var> is assumed.
+The standard buffer of any text file is 128 bytes long. For heavy I/O
+operations this may prove too slow. The <var>SetTextBuf</var> procedure allows
+to set a bigger buffer for the IO of the application, thus reducing the number of
+system calls, and thus reducing the load on the system resources.
+The maximum size of the newly assigned buffer is 65355 bytes.
+</p>
+<remark>
+<ul>
+<li> Never assign a new buffer to an opened file. A
+new buffer can be assigned immediately after a call to <link id="Rewrite"/>
+<link id="Reset"/> or
+<var>Append</var>, but not after the file was read from/written to. This may cause
+loss of data. If a new buffer must be assigned after read/write
+operations have been performed, the file should be flushed first.
+This will ensure that the current buffer is emptied.
+</li>
+<li> Take care that the assigned buffer is always valid. If a local variable is
+assigned as a buffer, then after the program exits the local program block,
+the buffer will no longer be valid, and stack problems may occur.
+</li>
+</ul>
+</remark>
+</descr>
+<errors>
+No checking on <var>Size</var> is done.
+</errors>
+<seealso>
+<link id="Assign"/>
+<link id="Reset"/>
+<link id="Rewrite"/>
+<link id="Append"/>
+</seealso>
+<example file="refex/ex61"/>
+</element>
+
+
+
+<element name="Sin">
+<short>Calculate sine of angle</short>
+<descr>
+<var>Sin</var> returns the sine of its argument <var>X</var>, where <var>X</var> is an
+angle in radians.
+
+If the absolute value of the argument is larger than \var{2\^{}63}, then the
+result is undefined.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Cos"/>
+<link id="Pi"/>
+<link id="Exp"/>
+<link id="Ln"/>
+</seealso>
+<example file="refex/ex62"/>
+</element>
+
+
+
+<element name="SizeOf">
+<short>Return size of a variable or type.</short>
+<descr>
+<p>
+<var>SizeOf</var> returns the size, in bytes, of any variable or type-identifier.
+</p>
+<remark>
+This isn't really a RTL function. Its result is calculated at
+compile-time, and hard-coded in the executable.
+</remark>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Addr"/>
+</seealso>
+<example file="refex/ex63"/>
+</element>
+
+
+
+<element name="Sptr">
+<short>Return current stack pointer</short>
+<descr>
+<var>Sptr</var> returns the current stack pointer.
+
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="SSeg"/>
+</seealso>
+<example file="refex/ex64"/>
+</element>
+
+
+
+<element name="Sqr">
+<short>Calculate the square of a value.</short>
+<descr>
+<var>Sqr</var> returns the square of its argument <var>X</var>.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Sqrt"/>
+<link id="Ln"/>
+<link id="Exp"/>
+</seealso>
+<example file="refex/ex65"/>
+</element>
+
+
+
+<element name="Sqrt">
+<short>Calculate the square root of a value</short>
+<descr>
+<var>Sqrt</var> returns the square root of its argument <var>X</var>, which must be
+positive.
+</descr>
+<errors>
+If <var>X</var> is negative, then a run-time error is generated.
+</errors>
+<seealso>
+<link id="Sqr"/>
+<link id="Ln"/>
+<link id="Exp"/>
+</seealso>
+<example file="refex/ex66"/>
+</element>
+
+
+
+<element name="SSeg">
+<short>Return stack segment register value.</short>
+<descr>
+ <var>SSeg</var> returns the Stack Segment. This function is only
+ supported for compatibility reasons, as <var>Sptr</var> returns the
+correct contents of the stackpointer.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Sptr"/>
+</seealso>
+<example file="refex/ex67"/>
+</element>
+
+
+
+<element name="Str">
+<short>Convert a numerical value to a string.</short>
+<descr>
+<var>Str</var> returns a string which represents the value of X. X can be any
+numerical type.
+The optional <var>NumPLaces</var> and <var>Decimals</var> specifiers control the
+formatting of the string.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Val"/>
+</seealso>
+<example file="refex/ex68"/>
+</element>
+
+
+
+<element name="StringOfChar">
+<short>Return a string consisting of 1 character repeated N times.</short>
+<descr>
+<p>
+<var>StringOfChar</var> creates a new String of length <var>l</var> and fills
+it with the character <var>c</var>.
+</p>
+<p>
+It is equivalent to  the following calls:
+</p>
+<code>
+SetLength(StringOfChar,l);
+FillChar(Pointer(StringOfChar)^,Length(StringOfChar),c);
+</code>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="SetLength"/>
+</seealso>
+<example file="refex/ex97"/>
+</element>
+
+
+
+<element name="Succ">
+<short>Return next element of ordinal type.</short>
+<descr>
+<p>
+<var>Succ</var> returns the element that succeeds the element that was passed
+to it. If it is applied to the last value of the ordinal type, and the
+program was compiled with range checking on (\var{\{\$R+\}}), then a run-time
+error will be generated.
+</p>
+<p>
+for an example, see <link id="Ord"/>.
+</p>
+</descr>
+<errors>
+Run-time error 201 is generated when the result is out of
+range.
+</errors>
+<seealso>
+<link id="Ord"/>
+<link id="Pred"/>
+<link id="High"/>
+<link id="Low"/>
+</seealso>
+</element>
+
+<element name="Swap">
+<short>Swap high and low bytes/words of a variable</short>
+<descr>
+<var>Swap</var> swaps the high and low order bytes of <var>X</var> if <var>X</var> is of
+type <var>Word</var> or <var>Integer</var>, or swaps the high and low order words of
+<var>X</var> if <var>X</var> is of type <var>Longint</var> or <var>Cardinal</var>.
+The return type is the type of <var>X</var>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Lo"/>
+<link id="Hi"/>
+</seealso>
+<example file="refex/ex69"/>
+</element>
+
+
+
+<element name="Trunc">
+<short>Truncate a floating point value.</short>
+<descr>
+<var>Trunc</var> returns the integer part of <var>X</var>,
+which is always smaller than (or equal to) <var>X</var> in absolute value.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Frac"/>
+<link id="Int"/>
+<link id="Round"/>
+</seealso>
+<example file="refex/ex70"/>
+</element>
+
+
+
+<element name="Truncate">
+<short>Truncate the file at position</short>
+<descr>
+<var>Truncate</var> truncates the (opened) file <var>F</var> at the current file
+position.
+
+</descr>
+<errors>
+Depending on the state of the \var{\{\$I\}} switch, a runtime error can be 
+generated if there is an error. In the \var{\{\$I-\}} state, use <var>IOResult</var>
+to check for errors.
+</errors>
+<seealso>
+<link id="Append"/>
+<link id="Filepos"/>,
+<link id="Seek"/>
+</seealso>
+<example file="refex/ex71"/>
+</element>
+
+
+
+<element name="Upcase">
+<short>Convert a string to all uppercase.</short>
+<descr>
+<var>Upcase</var> returns the uppercase version of its argument <var>C</var>.
+If its argument is a string, then the complete string is converted to
+uppercase. The type of the returned value is the same as the type of the
+argument.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="Lowercase"/>
+</seealso>
+<example file="refex/ex72"/>
+</element>
+
+
+
+<element name="Val">
+<short>Calculate numerical value of a string.</short>
+<descr>
+<var>Val</var> converts the value represented in the string <var>S</var> to a numerical
+value, and stores this value in the variable <var>V</var>, which
+can be of type <var>Longint</var>, <var>Real</var> and <var>Byte</var>.
+If the conversion isn't succesfull, then the parameter <var>Code</var> contains
+the index of the character in <var>S</var> which prevented the conversion.
+The string <var>S</var> is allowed to contain spaces in the beginning.
+
+The string <var>S</var> can contain a number in decimal, hexadecimal, binary
+or octal format, as described in the language reference.
+
+</descr>
+<errors>
+If the conversion doesn't succeed, the value of <var>Code</var> indicates the
+position where the conversion went wrong.
+</errors>
+<seealso>
+<link id="Str"/>
+</seealso>
+<example file="refex/ex74"/>
+</element>
+
+
+
+<element name="Write">
+<short>Write variable to a text file</short>
+<descr>
+<var>Write</var> writes the contents of the variables <var>V1</var>, <var>V2</var> etc. to
+the file <var>F</var>. <var>F</var> can be a typed file, or a <var>Text</var> file.
+If <var>F</var> is a typed file, then the variables <var>V1</var>, <var>V2</var> etc. must
+be of the same type as the type in the declaration of <var>F</var>. Untyped files
+are not allowed.
+If the parameter <var>F</var> is omitted, standard output is assumed.
+If <var>F</var> is of type <var>Text</var>, then the necessary conversions are done
+such that the output of the variables is in human-readable format.
+This conversion is done for all numerical types. Strings are printed exactly
+as they are in memory, as well as <var>PChar</var> types.
+The format of the numerical conversions can be influenced through
+the following modifiers:
+<var> OutputVariable : NumChars [: Decimals ]  </var>
+This will print the value of <var>OutputVariable</var> with a minimum of
+<var>NumChars</var> characters, from which <var>Decimals</var> are reserved for the
+decimals. If the number cannot be represented with <var>NumChars</var> characters,
+<var>NumChars</var> will be increased, until the representation fits. If the
+representation requires less than <var>NumChars</var> characters then the output
+is filled up with spaces, to the left of the generated string, thus
+resulting in a right-aligned representation.
+If no formatting is specified, then the number is written using its natural
+length, with nothing in front of it if it's positive, and a minus sign if
+it's negative.
+Real numbers are, by default, written in scientific notation.
+</descr>
+<errors>
+If an error occurs, a run-time error is generated. This behavior can be
+controlled with the \var{\{\$i\}} switch.
+</errors>
+<seealso>
+<link id="WriteLn"/>
+<link id="Read"/>
+<link id="Readln"/>
+<link id="Blockwrite"/>
+</seealso>
+</element>
+
+<element name="WriteLn">
+<short>Write variable to a text file and append newline</short>
+<descr>
+<p>
+<var>WriteLn</var> does the same as <link id="Write"/> for text files, and emits a
+Carriage Return - LineFeed character pair after that.
+If the parameter <var>F</var> is omitted, standard output is assumed.
+If no variables are specified, a Carriage Return - LineFeed character pair
+is emitted, resulting in a new line in the file <var>F</var>.
+</p>
+<remark>
+Under linux and unix, the Carriage Return character is omitted, as
+customary in Unix environments.
+</remark>
+</descr>
+<errors>
+If an error occurs, a run-time error is generated. This behavior can be
+controlled with the \var{\{\$i\}} switch.
+</errors>
+<seealso>
+<link id="Write"/>
+<link id="Read"/>
+<link id="Readln"/>
+<link id="Blockwrite"/>
+</seealso>
+<example file="refex/ex75"/>
+</element>
+
+<!-- range type Visibility: default -->
+<element name="ShortInt">
+<short>A signed 8-bits integer</short>
+</element>
+
+<!-- range type Visibility: default -->
+<element name="SmallInt">
+<short>A signed 16-bits integer</short>
+</element>
+
+<!-- range type Visibility: default -->
+<element name="Longint">
+<short>A signed 32-bits integer</short>
+</element>
+
+<!-- range type Visibility: default -->
+<element name="Byte">
+<short>An unsigned 8-bits integer</short>
+</element>
+
+<!-- range type Visibility: default -->
+<element name="Word">
+<short>An unsigned 16-bits integer</short>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="DWord">
+<short>An unsigned 32-bits integer</short>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="Cardinal">
+<short>An unsigned 32-bits integer.</short>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="Integer">
+<short>A signed 16-bits integer</short>
+<descr>
+The system unit defines <var>Integer</var> as a signed 16-bit integer.
+But when <var>DELPHI</var> or <var>OBJFPC</var> mode are active, then
+the <file>objpas</file> unit redefines <var>Integer</var> as a 16-bit
+integer.
+</descr>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PChar">
+<short>Pointer to null-terminated string.</short>
+<descr>
+Or the same as a pointer to an array of char. See the reference manual for
+more information about this type.
+</descr>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PPChar">
+<short>Pointer to an array of pointers to null-terminated strings.</short>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="TAnsiChar">
+<short>Alias for 1-byte sized char.</short>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="AnsiChar">
+<short>Alias for 1-byte sized char.</short>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="PAnsiChar">
+<short>Alias for <link id="PChar"/> type.</short>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="PPAnsiChar">
+<short>Alias for <link id="PPChar"/> type.</short>
+</element>
+
+<!-- "type" alias type Visibility: default -->
+<element name="UCS4Char">
+<short>UCS unicode character (unsigned 32 bit word)</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PUCS4Char">
+<short>Pointer to <link id="UCS4Char"/></short>
+</element>
+
+<!-- array type Visibility: default -->
+<element name="TUCS4CharArray">
+<short>Array of <link id="UCS4Char"/> characters.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PUCS4CharArray">
+<short>Pointer to array of <link id="UCS4Char"/> characters.</short>
+</element>
+
+<!-- array type Visibility: default -->
+<element name="UCS4String">
+<short>String of <link id="UCS4Char"/> characters.</short>
+</element>
+
+<!-- "type" alias type Visibility: default -->
+<element name="UTF8String">
+<short>UTF-8 unicode (ansi) string.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PUTF8String">
+<short>Pointer to <link id="UTF8String"/></short>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="Currency">
+<short>Currency type.</short>
+</element>
+
+<!-- "type" alias type Visibility: default -->
+<element name="HRESULT">
+<short>32-Bit signed integer.</short>
+</element>
+
+<!-- "type" alias type Visibility: default -->
+<element name="TDateTime">
+<short>Encoded Date-Time type.</short>
+</element>
+
+<!-- "type" alias type Visibility: default -->
+<element name="Error">
+<short>32-bit signed integer.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PSingle">
+<short>Pointer to single-sized float value.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PDouble">
+<short>Pointer to double-sized float value.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PCurrency">
+<short>Pointer to currency type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PExtended">
+<short>Pointer to extended-sized float value.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PSmallInt">
+<short>Pointer to <link id="smallint"/> type</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PShortInt">
+<short>Pointer to <link id="shortint"/> type</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PInteger">
+<short>Pointer to <link id="integer"/> type</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PByte">
+<short>Pointer to <link id="byte"/> type</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PWord">
+<short>Pointer to <link id="word"/> type</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PDWord">
+<short>Pointer to <link id="DWord"/> type</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PLongWord">
+<short>Pointer to <var>LongWord</var> type</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PLongint">
+<short>Pointer to <link id="Longint"/> type</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PCardinal">
+<short>Pointer to <link id="Cardinal"/> type</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PQWord">
+<short>Pointer to <var>QWord</var> type</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PInt64">
+<short>Pointer to <var>Int64</var> type</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PPtrInt">
+<short>Pointer to <link id="PtrInt"/> type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PSizeInt">
+<short>Pointer to a <link id="SizeInt"/> type</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PPointer">
+<short>Pointer to a pointer type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PPPointer">
+<short>Pointer to a <link id="PPointer"/> type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PBoolean">
+<short>Pointer to a Boolean type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PWordBool">
+<short>Pointer to a <var>WordBool</var> type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PLongBool">
+<short>Pointer to a <var>LongBool</var> type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PShortString">
+<short>Pointer to a shortstring type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PAnsiString">
+<short>Pointer to an ansistring type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PDate">
+<short>Pointer to a <link id="TDateTime"/> type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PError">
+<short>Pointer to an <link id="Error"/> type.</short>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="WChar">
+<short>Wide char (16-bit sized char)</short>
+</element>
+
+<!-- enumeration type Visibility: default -->
+<element name="TTextLineBreakStyle">
+<short>Text line break style. (end of line character)</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TTextLineBreakStyle.tlbsLF">
+<short>Line-feed only (#10, unix style)</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TTextLineBreakStyle.tlbsCRLF">
+<short>Carriage-return, line-feed (#13#30, Windows style)</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="TTextLineBreakStyle.tlbsCR">
+<short>Carriage-return (#13, Mac-OS style)</short>
+</element>
+
+<!-- procedure type Visibility: default -->
+<element name="TProcedure">
+<short>Simple procedural type.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="MaxSIntValue">
+<short>Maximum String-size value.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="MaxUIntValue">
+<short>Maximum unsigned integer value.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="maxLongint">
+<short>Maximum longint value.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="maxSmallint">
+<short>Maximum smallint value.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="maxint">
+<short>Maximum integer value.</short>
+</element>
+
+<!-- array type Visibility: default -->
+<element name="IntegerArray">
+<short>Generic array of integer. </short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PIntegerArray">
+<short>Pointer to <link id="IntegerArray"/> type</short>
+</element>
+
+<!-- array type Visibility: default -->
+<element name="PointerArray">
+<short>Generic pointer array.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PPointerArray">
+<short>Pointer to <link id="PointerArray"/> type</short>
+</element>
+
+<!-- array type Visibility: default -->
+<element name="TBoundArray">
+<short>Dynamic array of integer.</short>
+</element>
+
+<!-- array type Visibility: default -->
+<element name="TPCharArray">
+<short>Array of PChar</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PPCharArray">
+<short>Pointer to <link id="TPCharArray"/> type.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="Max_Frame_Dump">
+<short>Maximum number of frames to show in error frame dump.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="ExitProc">
+<short>Exit procedure pointer.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="Erroraddr">
+<short>Address where the last error occurred.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="Errorcode">
+<short>Last error code.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fmClosed">
+<short>File mode: File is closed.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fmInput">
+<short>File mode: File is open for reading.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fmOutput">
+<short>File mode: File is open for writing.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fmInOut">
+<short>File mode: File is open for reading and writing.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fmAppend">
+<short>File mode: File is open for writing, appending to the end.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="ProcessID">
+<short>Current process ID.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="Filemode">
+<short>Default file mode for untyped files.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="CmdLine">
+<short>Current command-line.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="IsMultiThread">
+<short>Indicates whether more than one thread is running in the application.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="StackError">
+<short>Indicate whether there was a stack error.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="ExitCode">
+<short>Exit code for the program, will be communicated to the OS on exit.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="RandSeed">
+<short>Seed for <link id="Random"/> function.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="IsLibrary">
+<short><var>True</var> if the current module is a library. Otherwise module
+is an excutable</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="IsConsole">
+<short><var>True</var> for console applications, <var>False</var> for GUI applications.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="fpc_threadvar_relocate_proc" skip="1">
+</element>
+
+<!-- variable Visibility: default -->
+<element name="ThreadID">
+<short>Current Thread ID.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="Output">
+<short>Standard output text file.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="Input">
+<short>Standard input text file.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="StdOut">
+<short>Alias for <link id="Output"/>.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="StdErr">
+<short>Standard diagnostic output text file.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="InOutRes">
+<short>Result of last I/O operation. Read-Only.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="StackBottom">
+<short>Current stack bottom.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="StackLength">
+<short>Maximum stack length.</short>
+</element>
+
+<!-- function Visibility: default -->
+<element name="IndexChar0">
+<short>Return index of a character in null-terminated array of char.</short>
+<descr> 
+<var>IndexChar0</var> returns the index of the character <var>b</var> in the
+null-terminated array <var>Buf</var>. At most <var>len</var> characters will
+be searched, or the null character if it is encountered first. If the
+character is not found, 0 is returned.
+</descr>
+<errors>
+On error, 0 is returned.
+</errors>
+<seealso>
+<link id="IndexByte"/>
+<link id="IndexChar"/>
+<link id="IndexWord"/>
+<link id="IndexDWord"/>
+<link id="CompareChar0"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="CompareChar0">
+<short>Compare two buffers character by character till a null-character is reached.</short>
+<descr>
+<p>
+<var>CompareChar0</var> compares 2 buffers <var>buf1</var> and <var>buf2</var>
+for a maximum length of <var>len</var> or till a null character is reached
+in either buffer. The result depends on the contents of the buffers:
+</p>
+<dl>
+<dt>&lt; 0</dt><dd>If <var>buf1</var> contains a character less than the
+corresponding character in <var>buf2</var>.</dd>
+<dt>0</dt><dd>If both buffers are equal</dd>
+<dt>&gt; 0</dt><dd>If <var>buf1</var> contains a character greater than the
+corresponding character in <var>buf2</var>.</dd>
+</dl>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="CompareByte"/>
+<link id="CompareChar"/>
+<link id="CompareDWord"/>
+<link id="CompareWord"/>
+</seealso>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="prefetch">
+<short>Prefetch a memory location</short>
+<descr>
+<var>Prefetch</var> can be used to optimize the CPU behaviour by already
+loading a memory location. It is mainly used as a hint for those processors
+that support it.
+</descr>
+<errors>
+None.
+</errors>
+</element>
+
+<!-- array type Visibility: default -->
+<element name="real48">
+<short>TP compatible real type (6 bytes) definition</short>
+</element>
+
+<!-- function Visibility: default -->
+<element name="strpas">
+<short>Convert a null-terminated string to a shortstring.</short>
+<descr>
+Converts a null terminated string in <var>P</var> to a Pascal string, and
+returns
+this string. The string is truncated at 255 characters.
+</descr>
+<errors>
+None.
+</errors>
+</element>
+
+<!-- function Visibility: default -->
+<element name="strlen">
+<short>Length of a null-terminated string.</short>
+<descr>
+Returns the length of the null-terminated string <var>P</var>.
+</descr>
+<errors>
+None.
+</errors>
+</element>
+
+<!-- function Visibility: default -->
+<element name="Space">
+<short>Return a string of spaces</short>
+<descr>
+<var>Space</var> returns a shortstring with length <var>B</var>, consisting
+of spaces.
+</descr>
+<seealso>
+<link id="StringOfChar"/>
+</seealso>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="UniqueString">
+<short>Make sure reference count of string is 1</short>
+<descr>
+<var>UniqueString</var> ensures that the ansistring <var>S</var> has
+reference count 1. It makes a copy of <var>S</var> if this is necesary, and
+returns the copy in <var>S</var>
+</descr>
+<errors>
+None.
+</errors>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="SetTextLineEnding">
+<short>Set the end-of-line character for the given text file.</short>
+<descr>
+<var>SetTextLineEnding</var> sets the end-of-line character for the text
+file <var>F</var> to <var>Ending</var>. By default, this is the string
+indicated by <link id="DefaultTextLineBreakStyle"/>.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="DefaultTextLineBreakStyle"/>
+<link id="TTextLineBreakStyle"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="get_frame">
+<short>Return the current frame</short>
+<descr>
+<var>get_frame</var> returns a pointer to the current stack frame.
+</descr>
+<seealso>
+<link id="get_caller_addr"/>
+<link id="get_caller_frame"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="get_caller_addr">
+<short>Return the address of the caller.</short>
+<descr>
+<var>get_caller_frame</var> returns a pointer to address ( the return
+address)  of the caller  of the routine which has as frame <var>framebp</var>.
+</descr>
+<seealso>
+<link id="get_frame"/>
+<link id="get_caller_frame"/>
+<link id="Dump_Stack"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="get_caller_frame">
+<short>Return the frame pointer of the caller</short>
+<descr>
+<var>get_caller_frame</var> returns a pointer to the frame of the caller 
+of the routine which has as frame <var>framebp</var>.
+</descr>
+<seealso>
+<link id="get_caller_addr"/>
+<link id="get_frame"/>
+<link id="Dump_Stack"/>
+</seealso>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="Dump_Stack">
+<short>Dump stack to the given text file.</short>
+<descr>
+<var>Dump_Stack</var> prints a stack dump to the file <var>f</var>, with
+base frame pointer <var>bp</var>
+</descr>
+<errors>
+The file <var>f</var> must be opened for writing or an error will occur.
+</errors>
+<seealso>
+<link id="get_caller_addr"/>
+<link id="get_caller_frame"/>
+<link id="get_frame"/>
+</seealso>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="AddExitProc">
+<short>Add an exit procedure to the exit procedure chain.</short>
+<descr>
+<var>AddExitProc</var> adds <var>Proc</var> to the exit procedure chain. At
+program exit, all procedures added in this way will be called in reverse
+order.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="ExitProc"/>
+</seealso>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="SysInitExceptions">
+<short>Initialize exceptions.</short>
+<descr>
+<var>SysInitExceptions</var> initializes the exception system. This
+procedure should never be called directly, it is taken care of by the RTL.
+</descr>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="SysInitStdIO">
+<short>Initialize standard input and output.</short>
+<descr>
+<var>SysInitStdIO</var> initializes the standard input and output files:
+<link id="Output"/>, <link id="Input"/> and <link id="StdErr"/>. This
+routine is called by the initialization code of the system unit, there
+should be no need to call it directly.
+</descr>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="SysResetFPU">
+<short>Reset the floating point unit.</short>
+<descr>
+<var>SysResetFPU</var> resets the floating point unit. There should normally
+be no need to call this unit; the compiler itself takes care of this.
+</descr>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="AbstractError">
+<short>Generate an abstract error.</short>
+<descr>
+<var>AbstractError</var> generates an abstract error (run-time error 211).
+If the <link id="AbstractErrorProc"/> constant is set, it will be called
+instead.
+</descr>
+<errors>
+This routine causes a run-time error 211.
+</errors>
+<seealso>
+<link id="AbstractErrorProc"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="SysBackTraceStr">
+<short>Format an address suitable for inclusion in a backtrace</short>
+<descr>
+<var>SysBackTraceStr</var> will create a string representation of the 
+address <var>Addr</var>, suitable for inclusion in a stack backtrace.
+</descr>
+<errors>
+None.
+</errors>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="SysAssert">
+<short>Standard Assert failure implementation</short>
+<descr>
+<var>SysAssert</var> is the standard implementation of the assertion failed
+code. It is the default value of the <var>AssertErrorProc</var> constant.
+It will print the assert message <var>Msg</var> together with the filename
+<var>FName</var> and linenumber <var>LineNo</var> to standard error output
+(<var>StdErr</var>) and will halt the program with exit code 227.
+The error address <var>ErrorAddr</var> is ignored.
+</descr>
+<seealso>
+<link id="AssertErrorProc"/>
+</seealso>
+</element>
+
+<!-- function type Visibility: default -->
+<element name="TBackTraceStrFunc">
+<short>Type for formatting of backtrace dump.</short>
+</element>
+
+<!-- procedure type Visibility: default -->
+<element name="TErrorProc">
+<short>Standard error handler procedural type.</short>
+</element>
+
+<!-- procedure type Visibility: default -->
+<element name="TAbstractErrorProc">
+<short>Abstract error handler procedural type.</short>
+</element>
+
+<!-- procedure type Visibility: default -->
+<element name="TAssertErrorProc">
+<short>Assert error handler procedural type.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="BackTraceStrFunc">
+<short>Standard backtrace formatting routine</short>
+<descr>
+This handler is called to get a standard format for the backtrace routine.
+</descr>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="ErrorProc">
+<short>Custom error handling procedure.</short>
+<descr>
+<p>
+If set, the <var>ErrorProc</var> constant is used when a run-time error
+occurs. If it is not set, then the standard error handling is done: a stack
+dump is performed, and the program exits with the indicated error code.
+</p>
+<p>
+The <file>SysUtils</file> unit sets this procedure and raises an exception
+in its handler.
+</p>
+</descr>
+<seealso>
+<link id="TErrorProc"/>
+<link id="Halt"/>
+</seealso>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="AbstractErrorProc">
+<short>Custom abstract error handling procedure</short>
+<descr>
+<p>
+If set, the <var>AbstractErrorProc</var> constant is used when an abstract
+error occurs. If it is not set, then the standard error handling is done:
+A stack dump is performed, and the program exits with error code 211.
+</p>
+<p>
+The <file>SysUtils</file> unit sets this procedure and raises an exception
+in its handler.
+</p>
+</descr>
+<seealso>
+<link id="TAbstractErrorProc"/>
+</seealso>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="AssertErrorProc">
+<short>Custom assert error handling procedure</short>
+<descr>
+<p>
+If set, the <var>AbstractErrorProc</var> constant is used when an assert
+error occurs. If it is not set, then the standard error handling is done:
+The assertion error message is printed, together with the location of the
+assertion, and A stack dump is performed, and the program exits with error code
+227.
+</p>
+<p>
+The <file>SysUtils</file> unit sets this procedure and raises an exception
+in its handler.
+</p>
+</descr>
+<seealso>
+</seealso>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="jmp_buf">
+<short>Record type to store processor information.</short>
+<seealso>
+<link id="setjmp"/>
+<link id="longjmp"/>
+</seealso>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="jmp_buf.ebx">
+<short>EBX register.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="jmp_buf.esi">
+<short>ESI register</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="jmp_buf.edi">
+<short>EDI register</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="jmp_buf.bp">
+<short>BP register</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="jmp_buf.sp">
+<short>SP register</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="jmp_buf.pc">
+<short>PC register</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PJmp_buf">
+<short>Pointer to <link id="jmp_buf"/> record</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtInstanceSize">
+<short>VMT Layout: Location of class instance size in VMT</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtParent">
+<short>VMT Layout: location of pointer to parent VMT.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtClassName">
+<short>VMT Layout: location of class name.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtDynamicTable">
+<short>VMT Layout: location of dynamic methods table.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtMethodTable">
+<short>VMT Layout: Method table start.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtFieldTable">
+<short>VMT Layout: Location of fields table.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtTypeInfo">
+<short>VMT Layout: Location of class type information.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtInitTable">
+<short>VMT Layout: ?</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtAutoTable">
+<short>VMT layout: ?</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtIntfTable">
+<short>VMT layout: Interface table</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtMsgStrPtr">
+<short>VMT layout: message strings table.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtMethodStart">
+<short>VMT layout: start of method table.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtDestroy">
+<short>VMT Layout: Location of destructor pointer.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtNewInstance">
+<short>VMT Layout: location of NewInstance method.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtFreeInstance">
+<short>VMT Layout: location of FreeInstance method.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtSafeCallException">
+<short>VMT  Layout: ?</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtDefaultHandler">
+<short>VMT Layout: ?</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtAfterConstruction">
+<short>VMT Layout: ?</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtBeforeDestruction">
+<short>VMT Layout: ?</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vmtDefaultHandlerStr">
+<short>VMT Layout: ?</short>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="TextFile">
+<short>Alias for <var>Text</var> file type.</short>
+</element>
+
+<!-- object Visibility: default -->
+<element name="TObject">
+<short>Parent class for all classes.</short>
+<descr>
+<var>TObject</var> is used as the parent class for all class definitions.
+It contains some standard methods that are available in all classes.
+</descr>
+<seealso>
+<link id="TClass"/>
+</seealso>
+</element>
+
+<!-- "class of" type Visibility: default -->
+<element name="TClass">
+<short>Class of <link id="TObject"/>.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PClass">
+<short>Pointer to <link id="TClass"/></short>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="TMsgStrTable">
+<short>Record used in string message handler table.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TMsgStrTable.name">
+<short>Message name</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TMsgStrTable.method">
+<short>Method to call</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PMsgStrTable">
+<short>Pointer to array of <link id="TMsgStrTable"/> records.</short>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="TStringMessageTable">
+<short>String message table container for class.</short>
+<descr>
+Record used to describe the string messages handled by a class.
+It consists of a count, followed by an array of <link id="TMsgStrTable"/>
+records.
+</descr>
+<seealso>
+<link id="TMsgStrTable"/>
+</seealso>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TStringMessageTable.count">
+<short>Number of messages in the string table.</short>
+<descr>
+</descr>
+<seealso>
+</seealso>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TStringMessageTable.msgstrtable">
+<short>First <link id="TMsgStrTable"/> record.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="pstringmessagetable">
+<short>Pointer to <link id="TStringMessageTable"/> record.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PGuid">
+<short>Pointer to <link id="TGUID"/> type. </short>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="TGuid">
+<short>Standard GUID representation type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="pinterfaceentry">
+<short>Pointer to <link id="tinterfaceentry"/> record.</short>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="tinterfaceentry">
+<short>Interfaces table entry.</short>
+<descr>
+<var>tinterfaceentry</var> is used to store the list of Interfaces of a
+class. This list is stored as an array of <var>tinterfaceentry</var>
+records.
+</descr>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tinterfaceentry.IID">
+<short>Unique GUID for this interface.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tinterfaceentry.VTable">
+<short>Pointer to interface VTable.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tinterfaceentry.IOffset">
+<short>Offset</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tinterfaceentry.IIDStr">
+<short>Pointer to GUID string. Always assigned for COM.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="pinterfacetable">
+<short>Pointer to <link id="tinterfacetable"/> record.</short>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="tinterfacetable">
+<short>Record to store list of interfaces of a class.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tinterfacetable.EntryCount">
+<short>Number of interfaces.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tinterfacetable.Entries">
+<short>Array of <link id="tinterfaceentry"/> records.</short>
+</element>
+
+<!-- object Visibility: default -->
+<element name="TObject">
+<short>Base class of all classes.</short>
+<descr>
+<var>TObject</var> is the parent root class for all classes in Object
+Pascal. If a class has no parent class explicitly declared, it is dependent
+on <var>TObject</var>. <var>TObject</var> introduces class methods that deal
+with the class' type information, and contains all necessary methods to
+create an instance at runtime, and to dispatch messages to the correct
+method (both string and integer messages).
+</descr>
+<seealso>
+<link id="TClass"/>
+</seealso>
+</element>
+
+<!-- constructor Visibility: public -->
+<element name="TObject.Create">
+<short><var>TObject</var> Constructor</short>
+<descr>
+<var>Create</var> creates a new instance of <var>TObject</var>. Currently it
+does nothing. It is also not virtual, so there is in principle no need to
+call it directly. 
+</descr>
+<seealso>
+<link id="TObject.Destroy">Destroy</link>
+</seealso>
+</element>
+
+<!-- destructor Visibility: public -->
+<element name="TObject.Destroy">
+<short><var>TObject</var> destructor.</short>
+<descr>
+<p>
+<var>Destroy</var> is the destructor of <var>TObject</var>. 
+It will clean up the memory assigned to the instance. Descendent classes
+should override destroy if they want to do additional clean-up. No other
+destructor should be implemented.
+</p>
+<p>
+It is bad programming practice to call <var>Destroy</var> directly. It is
+better to call the <link id="TObject.Free">Free</link> method, because that
+one will check first if <var>Self</var> is different from <var>Nil</var>.
+</p>
+<p>
+To clean up an instance and reset the refence to the instance, it is best to
+use the <link id="#rtl.sysutils.freeandnil">FreeAndNil</link> function.
+</p>
+</descr>
+<seealso>
+<link id="TObject.Create">Create</link>
+<link id="TObject.Free">Free</link>
+</seealso>
+</element>
+
+<!-- function Visibility: public -->
+<element name="TObject.newinstance">
+<short>Allocate memory on the heap for a new instance</short>
+<descr>
+<var>NewInstance</var> allocates memory on the heap for a new instance of
+the current class. If the memory was allocated, the class will be
+initialized by a call to <link id="TObject.InitInstance">InitInstance</link>.
+The function returns the newly initialized instance.
+</descr>
+<errors>
+If not enough memory is available, a <var>Nil</var> pointer may be returned, 
+or an exception may be raised.
+</errors>
+<seealso>
+<link id="TObject.Create">Create</link>
+<link id="TObject.InitInstance">InitInstance</link>
+<link id="TObject.InstanceSize">InstanceSize</link>
+<link id="TObject.FreeInstance">FreeInstance</link>
+</seealso>
+</element>
+
+<!-- procedure Visibility: public -->
+<element name="TObject.FreeInstance">
+<short>Clean up instance and free the memory reserved for the instance.</short>
+<descr>
+<var>FreeInstance</var> cleans up an instance of the current class, and
+releases the heap memory occupied by the class instance.
+</descr>
+<seealso>
+<link id="TObject.Destroy">Destroy</link>
+<link id="TObject.InitInstance">InitInstance</link>
+<link id="TObject.NewInstance">NewInstance</link>
+</seealso>
+</element>
+
+<!-- function Visibility: public -->
+<element name="TObject.SafeCallException">
+<short>Handle exception object</short>
+<descr>
+<var>SafeCallException</var> should be overridden to handle exceptions in a
+method marked with the savecall directive. The implementation in
+<var>TObject</var> simply returns zero.
+</descr>
+</element>
+
+<!-- procedure Visibility: public -->
+<element name="TObject.DefaultHandler">
+<short>Default handler for integer message handlers.</short>
+<descr>
+<var>DefaultHandler</var> is the default handler for messages. If a message
+has an unknown message ID (i.e. does not appear in the table with integer
+message handlers), then it will be passed to
+<var>DefaultHandler</var> by the <link id="TObject.Dispatch">Dispatch</link>
+method.
+</descr>
+<errors>
+</errors>
+<seealso>
+<link id="TObject.Dispatch">Dispatch</link>
+<link id="TObject.DefaultHandlerStr">DefaultHandlerStr</link>
+</seealso>
+</element>
+
+<!-- procedure Visibility: public -->
+<element name="TObject.Free">
+<short>Check for <var>Nil</var> and call destructor.</short>
+<descr>
+<var>Free</var> will check the <var>Self</var> pointer and calls
+<link id="TObject.Destroy">Destroy</link> if it is different from
+<var>Nil</var>. This is a safer method than calling <var>Destroy</var>
+directly. If a reference to the object must be reset as well (a recommended
+technque), then the function <link id="#rtl.sysutils.freeandnil">FreeAndNil</link> should be called.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="TObject.Destroy">Destroy</link>
+<link id="#rtl.sysutils.freeandnil">FreeAndNil</link>
+</seealso>
+</element>
+
+<!-- function Visibility: public -->
+<element name="TObject.InitInstance">
+<short>Initialize a new class instance.</short>
+<descr>
+<var>InitInstance</var> initializes the memory pointer to by
+<var>Instance</var>. This means that the VMT is initialized, and the
+interface pointers are set up correctly.
+The function returns the newly initialized instance.
+</descr>
+<seealso>
+<link id="TObject.NewInstance">NewInstance</link>
+<link id="TObject.Create">Create</link>
+</seealso>
+</element>
+
+<!-- procedure Visibility: public -->
+<element name="TObject.CleanupInstance">
+<short>Finalize the class instance.</short>
+<descr>
+<p>
+<var>CleanUpinstance</var> finalizes the instance, i.e. takes care of all
+reference counted objects, by decreasing their reference count by 1, and
+freeing them if their count reaches zero.
+</p>
+<p>
+Normally, <var>CleanupInstance</var> should never be called, it is called
+automatically when the object is freed with it's constructor.
+</p>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="TObject.Destroy">Destroy</link>
+<link id="TObject.Free">Free</link>
+<link id="TObject.InitInstance">InitInstance</link>
+</seealso>
+</element>
+
+<!-- function Visibility: public -->
+<element name="TObject.ClassInfo">
+<short>Return a pointer to the type information for this class.</short>
+<descr>
+<var>ClassInfo</var> returns a pointer to the type information for this
+class. This pointer can be used in the various type information routines.
+</descr>
+</element>
+
+<!-- function Visibility: public -->
+<element name="TObject.ClassType">
+<short>Return a "class of" pointer for the current class</short>
+<descr>
+<var>ClassType</var> returns a <link id="TClass"/> class type reference for
+the current class.
+</descr>
+<seealso>
+<link id="TClass"/>
+<link id="TObject.ClassInfo">ClassInfo</link>
+<link id="TObject.ClassName">ClassName</link>
+</seealso>
+</element>
+
+<!-- function Visibility: public -->
+<element name="TObject.ClassName">
+<short>Return the current class name.</short>
+<descr>
+<var>ClassName</var> returns the class name for the current class, in
+all-uppercase letters. To check for the class name, use the <link
+id="TObject.ClassNameIs">ClassNameIs</link> class method.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="TObject.ClassInfo">ClassInfo</link>
+<link id="TObject.ClassType">ClassType</link>
+<link id="TObject.ClassNameIs">ClassNameIs</link>
+</seealso>
+</element>
+
+<!-- function Visibility: public -->
+<element name="TObject.ClassNameIs">
+<short>Check whether the class name equals the given name.</short>
+<descr>
+<var>ClassNameIs</var> checks whether <var>Name</var> equals the class name.
+It takes of case sensitivity, i.e. it converts both names to uppercase
+before comparing.
+</descr>
+<seealso>
+<link id="TObject.ClassInfo">ClassInfo</link>
+<link id="TObject.ClassType">ClassType</link>
+<link id="TObject.ClassName">ClassName</link>
+</seealso>
+</element>
+
+<!-- function Visibility: public -->
+<element name="TObject.ClassParent">
+<short>Return the parent class.</short>
+<descr>
+<var>ClassParent</var> returns the class of the parent class of the current
+class. This is always different from <var>Nil</var>, except for
+<var>TObject</var>.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="TObject.ClassInfo">ClassInfo</link>
+<link id="TObject.ClassType">ClassType</link>
+<link id="TObject.ClassName">ClassNameIs</link>
+</seealso>
+</element>
+
+<!-- function Visibility: public -->
+<element name="TObject.InstanceSize">
+<short>Return the size of an instance.</short>
+<descr>
+<var>InstanceSize</var> returns the number of bytes an instance takes in
+memory. This is Just the memory occupied by the class structure, and does
+not take into account any additional memory that might be allocated by the
+constructor of the class.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="TObject.InitInstance">InitInstance</link>
+<link id="TObject.ClassName">ClassName</link>
+<link id="TObject.ClassInfo">ClassInfo</link>
+<link id="TObject.ClassType">ClassType</link>
+</seealso>
+</element>
+
+<!-- function Visibility: public -->
+<element name="TObject.InheritsFrom">
+<short>Chck wether class is an ancestor.</short>
+<descr>
+<var>InheritsFrom</var> returns <var>True</var> if <var>AClass</var> is an
+ancestor class from the current class, and returns false if it is not.
+</descr>
+<errors>
+</errors>
+<seealso>
+<link id="TObject.ClassName">ClassName</link>
+<link id="TObject.ClassInfo">ClassInfo</link>
+<link id="TObject.ClassType">ClassType</link>
+<link id="TClass"/>
+</seealso>
+</element>
+
+<!-- function Visibility: public -->
+<element name="TObject.StringMessageTable">
+<short>Return a pointer to the string message table.</short>
+<descr>
+<var>StringMessageTable</var> returns a pointer to the string message table,
+which can be used to look up methods for dispatching a string message. It is
+used by the <link id="TObject.DispatchStr">DispatchStr</link> method.
+</descr>
+<errors>
+If there are no string message handlers, nil is returned.
+</errors>
+<seealso>
+<link id="TObject.DispatchStr">DispatchStr</link>
+<link id="TObject.Dispatch">Dispatch</link>
+</seealso>
+</element>
+
+<!-- procedure Visibility: public -->
+<element name="TObject.Dispatch">
+<short>Dispatch an integer message</short>
+<descr>
+<p>
+<var>Dispatch</var> looks in the message handler table for a handler that
+handles <var>message</var>. The message is identified by the first dword
+(cardinal) in the message structure.
+</p>
+<p>
+If no matching message handler is found, the message is passed to the
+<link id="TObject.DefaultHandler">DefaultHandler</link> method, which can be
+overridden by descendent classes to add custom handling of messages.
+</p>
+</descr>
+<seealso>
+<link id="TObject.DispatchStr">DispatchStr</link>
+<link id="TObject.DefaultHandler">DefaultHandler</link>
+</seealso>
+</element>
+
+<!-- procedure Visibility: public -->
+<element name="TObject.DispatchStr">
+<short>Dispatch a string message.</short>
+<descr>
+<var>DispatchStr</var> extracts the message identifier from
+<var>Message</var> and checks the message handler table to see if a handler
+for the message is found, and calls the handler, passing along the message. 
+If no handler is found, the default <link id="TObject.DefaultHandlerStr">DefaultHandlerStr</link> 
+is called.
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="TObject.DefaultHandlerStr">DefaultHandlerStr</link>
+<link id="TObject.Dispatch">Dispatch</link>
+<link id="TObject.DefaultHandler">DefaultHandler</link>
+</seealso>
+</element>
+
+<!-- function Visibility: public -->
+<element name="TObject.MethodAddress">
+<short>Return the address of a method</short>
+<descr>
+<var>MethodAddress</var> returns the address of a method, searching the
+method by its name. The <var>Name</var> parameter specifies which method
+should be taken. The search is conducted in a case-insensitive manner.
+</descr>
+<errors>
+If no matching method is found, <var>Nil</var> is returned.
+</errors>
+<seealso>
+<link id="TObject.MethodName">MethodName</link>
+<link id="TObject.FieldAddress">FieldAddress</link>
+</seealso>
+</element>
+
+<!-- function Visibility: public -->
+<element name="TObject.MethodName">
+<short>Return the name of a method.</short>
+<descr>
+<var>MethodName</var> searches the VMT for a method with the specified 
+<var>address</var> and returns the name of the method.
+</descr>
+<errors>
+If no method with the matching address is found, an empty string is
+returned.
+</errors>
+<seealso>
+<link id="TObject.MethodAddress">MethodAddress</link>
+<link id="TObject.FieldAddress">FieldAddress</link>
+</seealso>
+</element>
+
+<!-- function Visibility: public -->
+<element name="TObject.FieldAddress">
+<short>Return the address of a field.</short>
+<descr>
+<var>FieldAddress</var> returns the address of the field with name <var>name</var>. 
+The address is the address of the field in the current class instance.
+</descr>
+<errors>
+If no field with the specified name is found, <var>Nil</var> is returned.
+</errors>
+<seealso>
+<link id="TObject.MethodAddress">MethodAddress</link>
+<link id="TObject.MethodName">MethodName</link>
+</seealso>
+</element>
+
+<!-- procedure Visibility: public -->
+<element name="TObject.AfterConstruction">
+<short>Method called after the constructor was called.</short>
+<descr>
+<var>AfterConstruction</var> is a method called after the constructor was
+called. It does nothing in the implementation of <var>TObject</var> and must
+be overridden by descendent classes to provide specific behaviour that is
+executed after the constructor has finished executing. (for instance, call
+an event handler)
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="TObject.BeforeDestruction">BeforeDestruction</link>
+<link id="TObject.Create">Create</link>
+</seealso>
+</element>
+
+<!-- procedure Visibility: public -->
+<element name="TObject.BeforeDestruction">
+<short>Method called before the destructor is called.</short>
+<descr>
+<var>BeforeDestruction</var> is a method called before the destructor is
+called. It does nothing in the implementation of <var>TObject</var> and must
+be overridden by descendent classes to provide specific behaviour that is
+executed before the destructor has finished executing. (for instance, call
+an event handler)
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="TObject.AfterConstruction">AfterConstruction</link>
+<link id="TObject.Destroy">Destroy</link>
+<link id="TObject.Free">Free</link>
+</seealso>
+</element>
+
+<!-- procedure Visibility: public -->
+<element name="TObject.DefaultHandlerStr">
+<short>Default handler for string messages.</short>
+<descr>
+<var>DefaultHandlerStr</var> is called for string messages which have no
+handler associated with them in the string message handler table. The
+implementation of <var>DefaultHandlerStr</var> in <var>TObject</var> does
+nothing and mut be overridden by descendent classes to provide specific
+message handling behaviour.
+</descr>
+<seealso>
+<link id="TObject.DispatchStr">DispatchStr</link>
+<link id="TObject.Dispatch">Dispatch</link>
+<link id="TObject.DefaultHandler">DefaultHandler</link>
+</seealso>
+</element>
+
+<!-- procedure type Visibility: default -->
+<element name="TExceptProc">
+<short>Exception handler procedural type</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PExceptObject">
+<short>Pointer to Exception handler procedural type <link id="TExceptProc"/></short>
+<descr>
+</descr>
+<seealso>
+</seealso>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="TExceptObject">
+<short>Exception object</short>
+<descr>
+<var>TExceptObject</var> is the exception description record which is found
+on the exception stack.
+</descr>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TExceptObject.FObject">
+<short>Exception instance.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TExceptObject.Addr">
+<short>Address where exception occurred</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TExceptObject.Frame">
+<short>Exception frame where exception occurred</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TExceptObject.Next">
+<short>Next exception object on the stack.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TExceptObject.refcount">
+<short>Reference count for this exception object</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="ExceptProc">
+<short>Current exception handling procedure.</short>
+<descr>
+<p>
+This constant points to the current exception handling procedure. 
+This routine is called when an unhandled exception occurs, i.e. an exception
+that is not stopped by a except block.
+</p>
+<p>
+If the handler is not set, the RTL will emit a run-time error 217 when an
+unhandler exception occurs.
+</p>
+<p>
+It is set by the <link id="#rtl.sysutils">sysutils</link> unit. 
+</p>
+</descr>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="RaiseProc">
+<short>Procedure to raise an exception.</short>
+</element>
+
+<!-- function Visibility: default -->
+<element name="RaiseList">
+<short>List of currently raised exceptions.</short>
+<descr>
+<var>RaiseList</var> returns a pointer to the list of currently raised
+exceptions (i.e. a pointer to the first exception block.
+</descr>
+<errors>
+</errors>
+<seealso>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="AcquireExceptionObject">
+<short>Obtain a reference to the current exception object</short>
+<descr>
+<p>
+<var>AcquireExceptionObject</var> returns the current exception object.
+It raises the reference count of the exception object, so it will not be
+freed.  Calling this method is only valid within an except block.
+</p>
+<p>
+The effect of this function is countered by re-raising an exception
+via <var>raise;</var>
+</p>
+<p>
+To make sure that the exception object is released when it is no longer
+needed, <link id="ReleaseExceptionObject"/> must be called when the 
+reference is no longer needed.
+</p>
+</descr>
+<errors>
+If there is no current exception, a run-time error 231 will occur.
+</errors>
+<seealso>
+<link id="ReleaseExceptionObject"/>
+</seealso>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="ReleaseExceptionObject">
+<short>Decrease the reference count of the current exception object.</short>
+<descr>
+<p>
+<var>ReleaseExceptionObject</var> decreases the reference count of the
+current exception object. This should be called whenever a reference to the
+exception object was obtained via the <link id="AcquireExceptionObject"/>
+call.
+</p>
+<p>
+Calling this method is only valid within an except block.
+</p>
+</descr>
+<errors>
+If there is no current exception object, a run-time error 231 will occur.
+</errors>
+<seealso>
+<link id="AcquireExceptionObject"/>
+</seealso>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtInteger">
+<short>TVarRec type: Integer</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtBoolean">
+<short>TVarRec type: Boolean</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtChar">
+<short>TVarRec type: Char</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtExtended">
+<short>TVarRec type: Extended</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtString">
+<short>TVarRec type: String</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtPointer">
+<short>TVarRec type: pointer</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtPChar">
+<short>TVarRec type: PChar</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtObject">
+<short>TVarRec type: Object instance</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtClass">
+<short>TVarRec type: Class type</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtWideChar">
+<short>TVarRec type: Widechar</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtPWideChar">
+<short>TVarRec type: PWideChar</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtAnsiString">
+<short>TVarRec type: Ansistring</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtCurrency">
+<short>TVarRec type: Currency</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtVariant">
+<short>TVarRec type: Variant</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtInterface">
+<short>TVarRec type: Interface</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtWideString">
+<short>TVarRec type: WideString</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtInt64">
+<short>TVarRec type: Int64 (signed 64-bit integer)</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vtQWord">
+<short>TVarRec type: QWord (unsigned 64-bit integer)</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PVarRec">
+<short>Pointer to <link id="TVarRec"/> type.</short>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="TVarRec">
+<short>Record describing an element in an array of const</short>
+<descr>
+<var>TVarRec</var> is a record generated by the compiler for each element in
+a <var>array of const</var> call. The procedure that receives the constant
+array receives an array of <var>TVarRec</var> elements, with lower bound zero
+and high bound equal to the number of elements in the array minus one
+(as returned by <var>High(Args)</var>)
+</descr>
+<seealso>
+</seealso>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="tdynarrayindex">
+<short>Type with the correct size for index into a dynamic array.</short>
+<descr>
+A variable of type <var>tdynarrayindex</var> will always have the correct
+size, suitable for serving as an index in a dynamic array.
+</descr>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="pdynarrayindex">
+<short>Pointer to <link id="tdynarrayindex"/> type.</short>
+</element>
+
+<!-- array type Visibility: default -->
+<element name="fpc_big_chararray" skip="1">
+<short>Array of char.</short>
+<descr>
+</descr>
+<seealso>
+</seealso>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="fpc_small_set" skip="1">
+<short>Type with the size of a small set</short>
+</element>
+
+<!-- array type Visibility: default -->
+<element name="fpc_normal_set" skip="1">
+<short>Type with the size of a normal set</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PMemoryManager">
+<short>Pointer to <link id="TMemoryManager"/> record</short>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="TMemoryManager">
+<short>Record describing the current memory manager</short>
+<descr>
+<var>TMemoryManager</var> describes the memory manager. For more information
+about the memory manager, see the programmer's reference. 
+</descr>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TMemoryManager.NeedLock">
+<short>Does the memory manager require a lock</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TMemoryManager.Getmem">
+<short>Function called when memory must be allocated on the heap.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TMemoryManager.Freemem">
+<short>Function called when previously allocated memory can be freed again.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TMemoryManager.FreememSize">
+<short>Function called when previously allocated memory with a known size can be freed again.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TMemoryManager.AllocMem">
+<short>Same as getmem.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TMemoryManager.ReAllocMem">
+<short>Handler called when an allocated  memory block should be resized</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TMemoryManager.MemSize">
+<short>Return the size of a memory block.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TMemoryManager.GetHeapStatus">
+<short>Handler called when the heap status must be reported.</short>
+</element>
+
+<element name="GetHeapStatus">
+<short>Return the memory manager heap status.</short>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="TMemoryMutexManager">
+<short>Record describing the mutex manager for the heap.</short>
+<descr>
+When the heapmanager needs a lock, then the mutex manager is used to handle
+the lock.
+</descr>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TMemoryMutexManager.MutexInit">
+<short>Initialize the mutex</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TMemoryMutexManager.MutexDone">
+<short>Finalize (i.e. dispose of) the mutex.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TMemoryMutexManager.MutexLock">
+<short>Lock the mutex</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="TMemoryMutexManager.MutexUnlock">
+<short>Unlock the mutex.</short>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="SetMemoryMutexManager">
+<short>Procedure to set the mutex manager.</short>
+<descr>
+<var>SetMemoryMutexManager</var> sets the mutex manager used by the memory
+manager to <var>MutexMgr</var>. The current mutex manager is returned in
+<var>MutexMgr</var>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="TMemoryMutexManager"/>
+<link id="SetMemoryManager"/>
+</seealso>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="growheapsizesmall">
+<short>Fixed size small blocks grow rate</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="growheapsize1">
+<short>Grow rate for block less than 256 Kb.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="growheapsize2">
+<short>Grow rate for block larger than 256 Kb.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="ReturnNilIfGrowHeapFails">
+<short>Describe behaviour if getmem fails.</short>
+<descr>
+<var>ReturnNilIfGrowHeapFails</var> describes what happens if there is no
+more memory available from the operating system. if set to <var>True</var>
+the memory manager will return <var>Nil</var>. If set to <var>False</var>
+then a run-time error will occur.
+</descr>
+</element>
+
+<!-- function Visibility: default -->
+<element name="SysGetmem">
+<short>System memory manager memory allocator.</short>
+<descr>
+<var>SysGetmem</var> is the system memory manager implementation for <link
+id="GetMem"/> 
+</descr>
+<seealso>
+<link id="GetMem"/>
+<link id="GetMemory"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="SysFreemem">
+<short>System memory manager free routine.</short>
+<descr>
+<var>SysFreeem</var> is the system memory manager implementation for <link id="FreeMem"/>
+</descr>
+<seealso>
+<link id="FreeMem"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="SysFreememSize">
+<short>System memory manager free routine.</short>
+<descr>
+<var>SysFreemSize</var> is the system memory manager implementation for <link
+id="FreeMem"/>
+</descr>
+<seealso>
+<link id="MemSize"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="SysMemSize">
+<short>System memory manager: free size.</short>
+<descr>
+<var>SysFreemSize</var> is the system memory manager implementation for
+<link id="MemSize"/>
+</descr>
+<seealso>
+<link id="MemSize"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="SysAllocMem">
+<short>System memory manager: Allocate memory</short>
+<descr>
+<var>SysFreemSize</var> is the system memory manager implementation for
+<link id="AllocMem"/>
+</descr>
+<seealso>
+<link id="AllocMem"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="SysTryResizeMem">
+<short>System memory manager: attempt to resize memory.</short>
+<descr>
+<var>SysTryResizeMem</var> is a help routine for the system memory 
+manager implementation for <link id="ReAllocMem"/>, <link
+id="SysReAllocMem"/>
+</descr>
+<seealso>
+<link id="SysReAllocMem"/>
+<link id="ReAllocMem"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="SysReAllocMem">
+<short>System memory manager: Reallocate memory</short>
+<descr>
+<var>SysReallocMem</var> is a help routine for the system memory
+manager implementation for <link id="ReAllocMem"/>.
+</descr>
+<seealso>
+<link id="ReAllocMem"/>
+</seealso>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="Getmemory">
+<short>Alias for <link id="GetMem"/></short>
+<descr>
+<var>Getmemory</var> is an alias for <link id="GetMem"/>.
+</descr>
+<seealso>
+<link id="GetMem"/>
+</seealso>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="Freememory">
+<short>Alias for <link id="FreeMem"/></short>
+<descr>
+<var>FreeMemory</var> is an alias for <link id="FreeMem"/>.
+</descr>
+<seealso>
+<link id="FreeMem"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="MemSize">
+<short>Return the size of a memory block.</short>
+<descr>
+<var>MemSize</var> returns the size of a memory block on the heap.
+</descr>
+<errors>
+Passing an invalid pointer may lead to run-time errors (access violations).
+</errors>
+<seealso>
+<link id="GetMem"/>
+<link id="FreeMem"/>
+</seealso>
+</element>
+
+<element name="AllocMem">
+<short>Alias for <link id="GetMem"/></short>
+<descr>
+<var>AllocMem</var> is an alias for <link id="GetMem"/>. 
+</descr>
+<seealso>
+<link id="GetMem"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="ReAllocMem">
+<short>Re-allocate memory on the heap</short>
+<descr>
+<p>
+<var>ReAllocMem</var> resizes the memory pointed to by <var>P</var> so it has size
+<var>Size</var>. The value of <var>P</var> may change during this operation.
+The contents of the memory pointed to by <var>P</var> (if any) will be copied to
+the new location, but may be truncated if the newly allocated memory block
+is smaller in size. If a larger block is allocated, only the used memory is
+initialized, extra memory will not be zeroed out.
+</p>
+<p>
+Note that <var>P</var> may be nil, in that case the behaviour of
+<var>ReAllocMem</var> is equivalent to <var>Getmem</var>.
+</p>
+</descr>
+<seealso>
+<link id="GetMem"/>
+<link id="FreeMem"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="ReAllocMemory">
+<short>Alias for <link id="ReAllocMem"/></short>
+<descr>
+<var>ReAllocMemory</var> is an alias for <link id="ReAllocMem"/>.
+</descr>
+<seealso>
+<link id="ReAllocMem"/>
+</seealso>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="AsmGetmem">
+<short>Routine that can be called from assembler routines to get memory.</short>
+<descr>
+<var>AsmGetmem</var> is a routine that can be called from assembler code to
+get memory. The assembler reader cannot decide which overloaded <link
+id="GetMem"/> call should be used. <var>AsmGetMem</var> provides a unique
+name that can be called from assembler. Other than that it is completely
+equivalent to <var>GetMem</var>.
+</descr>
+<seealso>
+<link id="GetMem"/>
+<link id="AsmFreeMem"/>
+</seealso>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="AsmFreemem">
+<short>Routine that can be called from assembler routines to release memory.</short>
+<descr>
+<var>AsmFreemem</var> is a routine that can be called from assembler code to
+release previously alocated memory. The assembler reader cannot decide which 
+overloaded <link id="FreeMem"/> call should be used. <var>AsmFreeMem</var> 
+provides a unique name that can be called from assembler. Other than that it 
+is completely equivalent to <var>FreeMem</var>.
+</descr>
+<seealso>
+<link id="FreeMem"/>
+<link id="AsmGetMem"/>
+</seealso>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="THandle">
+<short>Type alias.</short>
+<descr>
+This type should be considered opaque. It is used to describe file and other
+handles.
+</descr>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="LineEnding">
+<short>Constant describing the current line ending character.</short>
+<descr>
+<p>
+<var>LineEnding</var> is a constant which contains the current line-ending
+character. This character is system dependent, and is initialized by the
+system. It should not be set.
+</p>
+<p>
+This constant is part of a set of constants that describe the OS
+characteristics. These constants should be used instead of hardcoding 
+OS characteristics.
+</p>
+</descr>
+<seealso>
+<link id="DriveSeparator"/>
+<link id="DirectorySeparator"/>
+<link id="LFNSupport"/>
+<link id="PathSeparator"/>
+<link id="sLineBreak"/>
+<link id="FileNameCaseSensitive"/>
+<link id="DefaultTextLineBreakStyle"/>
+</seealso>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="LFNSupport">
+<short>COnstant describing support for long filenames.</short>
+<descr>
+<p>
+<var>LFNSupport</var> determines whether the current OS supports long file
+names, i.e. filenames that are not of the form 8.3 as on ancient DOS
+systems. If the value of this constant is <var>True</var> then long
+filenames are supported. If it is false, then not.
+</p>
+<p>
+This constant is part of a set of constants that describe the OS
+characteristics. These constants should be used instead of hardcoding 
+OS characteristics.
+</p>
+</descr>
+<link id="DriveSeparator"/>
+<link id="DirectorySeparator"/>
+<link id="LineEnding"/>
+<link id="PathSeparator"/>
+<link id="FileNameCaseSensitive"/>
+<link id="DefaultTextLineBreakStyle"/>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="DirectorySeparator">
+<short>Character used to separate directory parts.</short>
+<descr>
+<p>
+<var>DirectorySeparator</var> is the character used by the current operating
+system to separate directory parts in a pathname. This constant is system
+dependent, and should not be set.
+</p>
+<p>
+This constant is part of a set of constants that describe the OS
+characteristics. These constants should be used instead of hardcoding 
+OS characteristics.
+</p>
+</descr>
+<seealso>
+<link id="DriveSeparator"/>
+<link id="LineEnding"/>
+<link id="LFNSupport"/>
+<link id="PathSeparator"/>
+<link id="FileNameCaseSensitive"/>
+<link id="DefaultTextLineBreakStyle"/>
+</seealso>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="DriveSeparator">
+<short>Character used to separate directory parts.</short>
+<descr>
+<p>
+On systems that support driveletters, the <var>DriveSeparator</var> constant
+denotes the character that separates the drive indicator from the directory
+part in a filename path.
+</p>
+<p>
+This constant is part of a set of constants that describe the OS
+characteristics. These constants should be used instead of hardcoding 
+OS characteristics.
+</p>
+</descr>
+<seealso>
+<link id="DirectorySeparator"/>
+<link id="LineEnding"/>
+<link id="LFNSupport"/>
+<link id="PathSeparator"/>
+<link id="FileNameCaseSensitive"/>
+<link id="DefaultTextLineBreakStyle"/>
+</seealso>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="PathSeparator">
+<short>Character used to separate paths in a search list</short>
+<descr>
+<p>
+<var>PathSeparator</var> is the character used commonly on the current
+operating system to separate paths in a list of paths, such as the 
+<var>PATH</var> environment variable. 
+</p>
+<p>
+This constant is part of a set of constants that describe the OS
+characteristics. These constants should be used instead of hardcoding 
+OS characteristics.
+</p>
+</descr>
+<seealso>
+<link id="DirectorySeparator"/>
+<link id="LineEnding"/>
+<link id="LFNSupport"/>
+<link id="DriveSeparator"/>
+<link id="FileNameCaseSensitive"/>
+<link id="DefaultTextLineBreakStyle"/>
+</seealso>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="FileNameCaseSensitive">
+<short>OS treatment of filenames is case sensitive.</short>
+<descr>
+<p>
+<var>FileNameCaseSensitive</var> is <var>True</var> if case is important
+when using filenames on the current OS. In this case, the OS will treat 
+files with different cased names as different files. Note that this may 
+depend on the filesystem: Unix operating systems that access a DOS or
+Windows partition will have this constant set to true, but when writing to
+the DOS partition, the casing is ignored.
+</p>
+<p>
+This constant is part of a set of constants that describe the OS
+characteristics. These constants should be used instead of hardcoding 
+OS characteristics.
+</p>
+</descr>
+<seealso>
+<link id="DriveSeparator"/>
+<link id="DirectorySeparator"/>
+<link id="LineEnding"/>
+<link id="LFNSupport"/>
+<link id="PathSeparator"/>
+<link id="FileNameCaseSensitive"/>
+<link id="DefaultTextLineBreakStyle"/>
+</seealso>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="sLineBreak">
+<short>Alias for <link id="LineEnding"/></short>
+<descr>
+<p>
+<var>sLineBreak</var> is an alias for <link id="LineEnding"/> and is
+supplied for Delphi compatibility.
+</p>
+<p>
+This constant is part of a set of constants that describe the OS
+characteristics. These constants should be used instead of hardcoding 
+OS characteristics.
+</p>
+</descr>
+<seealso>
+<link id="DriveSeparator"/>
+<link id="DirectorySeparator"/>
+<link id="LineEnding"/>
+<link id="LFNSupport"/>
+<link id="PathSeparator"/>
+<link id="FileNameCaseSensitive"/>
+<link id="DefaultTextLineBreakStyle"/>
+</seealso>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="DefaultTextLineBreakStyle">
+<short>Default line ending style.</short>
+<descr>
+<p>
+<var>DefaultTextLineBreakStyle</var> contains the default OS setting for the
+<link id="TTextLineBreakStyle"/> type. It is initizliaed by the system unit,
+and is used to determine the default line ending when writing to text files.
+</p>
+<p>
+This constant is part of a set of constants that describe the OS
+characteristics. These constants should be used instead of hardcoding 
+OS characteristics.
+</p>
+</descr>
+<seealso>
+<link id="SetTextLineEnding"/>
+<link id="TTextLineBreakStyle"/>
+<link id="DriveSeparator"/>
+<link id="DirectorySeparator"/>
+<link id="LineEnding"/>
+<link id="LFNSupport"/>
+<link id="PathSeparator"/>
+<link id="FileNameCaseSensitive"/>
+</seealso>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="maxExitCode">
+<short>Maximum exit code supported by the operating system.</short>
+<descr>
+<var>maxExitCode</var> is the maximum value for the <link id="Halt"/> call.
+</descr>
+<seealso>
+<link id="Halt"/>
+</seealso>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="UnusedHandle">
+<short>Value indicating an unused file handle (as reported by the OS).</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="StdInputHandle">
+<short>Value of the OS handle for the standard input file.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="StdOutputHandle">
+<short>Value of the OS handle for the standard output file.</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="StdErrorHandle">
+<short>Value of the OS handle for the standard error-output file.</short>
+</element>
+
+
+<!-- variable Visibility: default -->
+<element name="argc" skip="1">
+<short>Number of command-line arguments.</short>
+<descr>
+<var>argc</var> contains the number of command-line arguments passed to
+the program by the OS. It is not available on all systems.
+</descr>
+<seealso>
+<link id="argv"/>
+<link id="envp"/>
+</seealso>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="argv">
+<short>Pointer to the array of command-line arguments</short>
+<descr>
+<var>argp</var> contains a pointer to a <var>nil</var>-terminated 
+array of null-terminated strings, containing the command-line 
+arguments passed to the program by the OS. It is not available 
+on all systems.
+</descr>
+<seealso>
+<link id="argc"/>
+<link id="envp"/>
+</seealso>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="envp">
+<short>Pointer to the array of environment variables</short>
+<descr>
+<var>envp</var> contains a pointer to a <var>nil</var>-terminated
+array of null-terminated strings, containing the environment variables
+passed to the program by the OS. It is not available on all systems.
+</descr>
+<seealso>
+<link id="argc"/>
+<link id="argv"/>
+</seealso>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="SizeInt">
+<short>Signed integer type which fits for sizes</short>
+<seealso>
+<link id="SizeUInt"/>
+</seealso>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="SizeUInt">
+<short>Unsigned Integer type which fits for sizes</short>
+<seealso>
+<link id="SizeInt"/>
+</seealso>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="PtrInt">
+<short>Signed integer type with same size as Pointer.</short>
+<descr>
+<var>PtrInt</var> is an integer type which has always the same size as a
+pointer. When using integers which will be cast to pointers and vice versa,
+use this type, never the regular integer type.
+</descr>
+<seealso>
+<link id="PtrUInt"/>
+</seealso>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="PtrUInt">
+<short>Unsigned integer type with same size as Pointer.</short>
+<descr>
+<var>PtrUInt</var> is an unsigned integer type which has always the same size as a
+pointer. When using integers which will be cast to pointers and vice versa,
+use this type, never the regular Cardinal type.
+</descr>
+<seealso>
+<link id="PtrInt"/>
+</seealso>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="ValSInt">
+<short>Val-Signed integer.</short>
+<descr>
+Integer with teh same size as the return code of the <link id="Val"/>
+function.
+</descr>
+<seealso>
+<link id="Val"/>
+<link id="ValUInt"/>
+</seealso>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="ValUInt">
+<short>Val-unsigned integer</short>
+<descr>
+Integer with teh same size as the return code of the <link id="Val"/>
+function.
+</descr>
+<seealso>
+<link id="Val"/>
+<link id="ValUInt"/>
+</seealso>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PVariant">
+<short>Pointer to <var>Variant</var> type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="POleVariant">
+<short>Pointer to <var>OleVariant</var> type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PWideChar">
+<short>Pointer to <link id="WChar"/>.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PPWideChar">
+<short>Pointer to link id="PWideChar"> type.</short>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="UCS2Char">
+<short>UCS2 unicode character.</short>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="PUCS2Char">
+<short>Pointer to <link id="UCS2Char"/> character.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="PText">
+<short>Pointer to text file.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="ErrOutput">
+<short>Alias for <link id="StdErr"/></short>
+<descr>
+<var>ErrOutput</var> is provided for Delphi compatibility.
+</descr>
+<seealso>
+<link id="StdErr"/>
+</seealso>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_lo_word">
+<short>FPC compiler internal procedure index: lo (word)</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_hi_word">
+<short>FPC compiler internal procedure index: hi (word)</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_lo_long">
+<short>FPC compiler internal procedure index: lo (long)</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_hi_long">
+<short>FPC compiler internal procedure index: hi (long)</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_ord_x">
+<short>FPC compiler internal procedure index: ord </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_length_string">
+<short>FPC compiler internal procedure index: length</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_chr_byte">
+<short>FPC compiler internal procedure index: chr</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_write_x">
+<short>FPC compiler internal procedure index: write</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_writeln_x">
+<short>FPC compiler internal procedure index: writeln</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_read_x">
+<short>FPC compiler internal procedure index: read</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_readln_x">
+<short>FPC compiler internal procedure index: readln</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_concat_x">
+<short>FPC compiler internal procedure index: concat </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_assigned_x">
+<short>FPC compiler internal procedure index: assigned </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_str_x_string">
+<short>FPC compiler internal procedure index: str </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_ofs_x">
+<short>FPC compiler internal procedure index: ofs </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_sizeof_x">
+<short>FPC compiler internal procedure index: sizeof </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_typeof_x">
+<short>FPC compiler internal procedure index: typeof </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_val_x">
+<short>FPC compiler internal procedure index: val </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_reset_x">
+<short>FPC compiler internal procedure index: reset </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_rewrite_x">
+<short>FPC compiler internal procedure index: rewrite </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_low_x">
+<short>FPC compiler internal procedure index: low </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_high_x">
+<short>FPC compiler internal procedure index: high </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_seg_x">
+<short>FPC compiler internal procedure index: seg </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_pred_x">
+<short>FPC compiler internal procedure index: pred </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_succ_x">
+<short>FPC compiler internal procedure index: succ </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_reset_typedfile">
+<short>FPC compiler internal procedure index: reset </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_rewrite_typedfile">
+<short>FPC compiler internal procedure index: rewrite </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_settextbuf_file_x">
+<short>FPC compiler internal procedure index: settextbuf </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_inc_x">
+<short>FPC compiler internal procedure index: inc </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_dec_x">
+<short>FPC compiler internal procedure index: dec </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_include_x_y">
+<short>FPC compiler internal procedure index:  include </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_exclude_x_y">
+<short>FPC compiler internal procedure index: exclude </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_break">
+<short>FPC compiler internal procedure index: break </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_continue">
+<short>FPC compiler internal procedure index: continue </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_assert_x_y">
+<short>FPC compiler internal procedure index: assert </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_addr_x">
+<short>FPC compiler internal procedure index: addr </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_typeinfo_x">
+<short>FPC compiler internal procedure index: typeinfo </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_setlength_x">
+<short>FPC compiler internal procedure index: setlength </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_finalize_x">
+<short>FPC compiler internal procedure index: finalize </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_new_x">
+<short>FPC compiler internal procedure index: new </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_dispose_x">
+<short>FPC compiler internal procedure index: dispose  </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_exit">
+<short>FPC compiler internal procedure index: exit </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_copy_x">
+<short>FPC compiler internal procedure index: copy  </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_initialize_x">
+<short>FPC compiler internal procedure index: initialize </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_leave">
+<short>FPC compiler internal procedure index: leave </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_cycle">
+<short>FPC compiler internal procedure index: cycle </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_trunc">
+<short>FPC compiler internal procedure index: trunc </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_round">
+<short>FPC compiler internal procedure index: round </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_frac">
+<short>FPC compiler internal procedure index: frac </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_abs">
+<short>FPC compiler internal procedure index: abs </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_int">
+<short>FPC compiler internal procedure index: int </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_sqr">
+<short>FPC compiler internal procedure index: sqr </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_odd">
+<short>FPC compiler internal procedure index: sqr </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_ptr">
+<short>FPC compiler internal procedure index: sqr </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_swap_word">
+<short>FPC compiler internal procedure index: swap (word) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_swap_long">
+<short>FPC compiler internal procedure index: swap (long) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_pi">
+<short>FPC compiler internal procedure index: pi </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_sqrt">
+<short>FPC compiler internal procedure index: sqrt </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_arctan">
+<short>FPC compiler internal procedure index: arctan </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_cos">
+<short>FPC compiler internal procedure index: cos </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_exp">
+<short>FPC compiler internal procedure index: exp </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_ln">
+<short>FPC compiler internal procedure index: in </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_sin">
+<short>FPC compiler internal procedure index: sin </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_lo_qword">
+<short>FPC compiler internal procedure index: lo (qword)  </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_hi_qword">
+<short>FPC compiler internal procedure index: hi (qword) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_cos_real">
+<short>FPC compiler internal procedure index: cos (real) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_pi">
+<short>FPC compiler internal procedure index: pi </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_abs_real">
+<short>FPC compiler internal procedure index: abs (real) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_sqr_real">
+<short>FPC compiler internal procedure index: sqr (real) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_sqrt_real">
+<short>FPC compiler internal procedure index: sqrt (real) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_arctan_real">
+<short>FPC compiler internal procedure index: arctan (real) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_ln_real">
+<short>FPC compiler internal procedure index: ln (real) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_sin_real">
+<short>FPC compiler internal procedure index: sin (real) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_const_swap_qword">
+<short>FPC compiler internal procedure index: swap (qword) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_prefetch_var">
+<short>FPC compiler internal procedure index: prefetch  </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_mmx_pcmpeqb">
+<short>FPC compiler internal procedure index: MMX </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_mmx_pcmpeqw">
+<short>FPC compiler internal procedure index: MMX </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_mmx_pcmpeqd">
+<short>FPC compiler internal procedure index: MMX </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_mmx_pcmpgtb">
+<short>FPC compiler internal procedure index: MMX </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_mmx_pcmpgtw">
+<short>FPC compiler internal procedure index: MMX </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="fpc_in_mmx_pcmpgtd">
+<short>FPC compiler internal procedure index: MMX </short>
+</element>
+
+<!-- function Visibility: default -->
+<element name="Align">
+<short>Return aligned version of an address</short>
+<descr>
+<var>Align</var> returns <var>Address</var>, aligned to <var>Alignment</var>
+bytes.
+</descr>
+<errors>
+None.
+</errors>
+</element>
+
+<element name="ArrayStringToPPchar">
+<short>Concert an array of string to an array of null-terminated strings</short>
+<descr>
+<p>
+<var>ArrayStringToPPchar</var> creates an array of null-terminated strings
+that point to strings which are the same as the strings in the array
+<var>S</var>. The function returns a pointer to this array. The array and
+the strings it contains must be disposed of after being used, because it 
+they are allocated on the heap.
+</p>
+<p>
+The <var>ReserveEntries</var> parameter tells <var>ArrayStringToPPchar</var>
+to allocate room at the end of the array for another <var>ReserveEntries</var>
+entries.
+</p>
+</descr>
+<errors>
+If not enough memory is available, an error may occur.
+</errors>
+<seealso>
+<link id="StringToPPChar"/>
+</seealso>
+</element>
+
+<element name="StringToPPChar">
+<short>Split string in list of null-terminated strings</short>
+<descr>
+<p>
+<var>StringToPPChar</var> splits the string <var>S</var> in words, replacing any
+whitespace with zero characters. It returns a pointer to an array of pchars
+that point to the first letters of the words in <var>S</var>. This array is terminated
+by a <var>Nil</var> pointer.
+</p>
+<p>
+The function does <em> not</em> add a zero character to the end of the string
+unless it ends on whitespace.
+</p>
+<p>
+The function reserves memory on the heap to store the array of <var>PChar</var>;
+The caller is responsible for freeing this memory. 
+</p>
+<p>
+This function is only available on certain platforms.
+</p>
+</descr>
+<errors>
+None.
+</errors>
+<seealso>
+<link id="ArrayStringToPPchar"/>
+</seealso>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varempty">
+<short>Variant type: <var>Empty</var> variant</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varnull">
+<short>Variant type: <link id="Null"/> variant </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varsmallint">
+<short>Variant type: smallint (8 bit) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varinteger">
+<short>Variant type: Integer (32-bit)</short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varsingle">
+<short>Variant type: Single float </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vardouble">
+<short>Variant type: Double float </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varcurrency">
+<short>Variant type: Currency </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vardate">
+<short>Variant type: Date </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varolestr">
+<short>Variant type: OLE string (widestring) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vardispatch">
+<short>Variant type: dispatch interface </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varerror">
+<short>Variant type: Error type </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varboolean">
+<short>Variant type: Boolean type </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varvariant">
+<short>Variant type: Variant (arrays only) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varunknown">
+<short>Variant type: Unknown </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vardecimal">
+<short>Variant type: Decimal (BCD) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varshortint">
+<short>Variant type: Shortint (16 bit) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varbyte">
+<short>Variant type: Byte (8 bit) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varword">
+<short>Variant type: Word (16 bit) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varlongword">
+<short>Variant type: Word (32 bit) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varint64">
+<short>Variant type: Integer (64-Bit) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varqword">
+<short>Variant type: Word (64-bit) </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varstrarg">
+<short>Variant type: String </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varstring">
+<short>Variant type: String </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varany">
+<short>Variant type: Any </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vartypemask">
+<short>Variant type: Mask to extract type </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="vararray">
+<short>Variant type: variant Array </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varbyref">
+<short>Variant type: By reference </short>
+</element>
+
+<!-- constant Visibility: default -->
+<element name="varword64">
+<short>Variant type: Word (64-bit) </short>
+</element>
+
+<!-- alias type Visibility: default -->
+<element name="tvartype">
+<short>Type with size of variant type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="pvararrayboundarray">
+<short>Pointer to <link id="tvararrayboundarray"/> type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="pvararraycoorarray">
+<short>Pointer to <link id="tvararraycoorarray"/> type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="pvararraybound">
+<short>Pointer to <link id="tvararraybound"/> type.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="pvararray">
+<short>Pointer to <link id="TVarArray"/> type.</short>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="tvararraybound">
+<short>Type describing variant array bounds.</short>
+<descr>
+<var>tvararraybound</var> is used to describe one dimension in a variant
+array.
+</descr>
+<seealso>
+<link id="tvararray"/>
+</seealso>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvararraybound.elementcount">
+<short>Number of elements in this array dimension.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvararraybound.lowbound">
+<short>Lower bound of this array dimension (index of first element).</short>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="tvararray">
+<short>Type describing variant array</short>
+<descr>
+<var>tvararray</var> is a record describing a variant array. It contains
+some general data, followed by a number of <link id="TVarArrayBound"/>
+records equal to the number of dimensions in the array (<var>dimcoun</var>).
+</descr>
+<seealso>
+<link id="TVarArrayBound"/>
+</seealso>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvararray.dimcount">
+<short>Number of dimensions</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvararray.flags">
+<short>Array flags.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvararray.elementsize">
+<short>Size of one element in the array.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvararray.lockcount">
+<short>Lock (reference) count of the array.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvararray.data">
+<short>Pointer to the array data.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvararray.bounds">
+<short>Array describing the bounds in the array.</short>
+</element>
+
+<!-- array type Visibility: default -->
+<element name="tvararrayboundarray">
+<short>array of <link id="tvararraybound"/> records.</short>
+</element>
+
+<!-- array type Visibility: default -->
+<element name="tvararraycoorarray">
+<short>Array of variant array coordinates</short>
+</element>
+
+<!-- enumeration type Visibility: default -->
+<element name="tvarop">
+<short>Variant operation.</short>
+<descr>
+<var>tvarop</var> describes a variant operation. It is mainly used for the
+variant manager to implement the various conversions and mathematical
+operations on a variant.
+</descr>
+<seealso>
+<link id="TVariantManager"/>
+</seealso>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opadd">
+<short>Variant operation: Addition.</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opsubtract">
+<short>Variant operation: Substraction</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opmultiply">
+<short>Variant operation: multiplication</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opdivide">
+<short>Variant operation: division</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opintdivide">
+<short>Variant operation: integer divide</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opmodulus">
+<short>Variant operation: Modulus</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opshiftleft">
+<short>Variant operation: Shift left</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opshiftright">
+<short>Variant operation: Shift right</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opand">
+<short>Variant operation: Binary AND operation</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opor">
+<short>Variant operation: Binary OR operation</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opxor">
+<short>Variant operation: binary XOR operation.</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opcompare">
+<short>Variant operation: Compare</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opnegate">
+<short>Variant operation: negation.</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opnot">
+<short>Variant operation: Binary NOT operation.</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opcmpeq">
+<short>Variant operation: Compare equal.</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opcmpne">
+<short>Variant operation: Compare not equal</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opcmplt">
+<short>Variant operation: Compare less than.</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opcmple">
+<short>Variant operation: Compare less than or equal to</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opcmpgt">
+<short>Variant operation: Compare larger than</short>
+</element>
+
+<!-- enumeration value Visibility: default -->
+<element name="tvarop.opcmpge">
+<short>Variant operation: Compare larger than or equal</short>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="tvardata">
+<short>Variant record.</short>
+<descr>
+<var>TVarData</var> is a record representation of a variant. It contains the
+internal structure of a variant and is handled by the various variant
+handling routines.
+</descr>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvardata.vtype">
+<short>Type of variant.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="pvardata">
+<short>Pointer to <link id="TVarData"/> record.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="pcalldesc">
+<short>Pointer to <link id="TCallDesc"/> record.</short>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="tcalldesc">
+<short>COM/OLE dispatch call argument description.</short>
+<descr>
+<var>tcalldesc</var> is used to encode the arguments to a dispatch call to 
+an OLE dual interface. It is used on windows only. It describes the 
+arguments to a call.
+</descr>
+</element>
+
+
+<!-- variable Visibility: default -->
+<element name="tcalldesc.calltype">
+<short>Call type.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tcalldesc.argcount">
+<short>Number of arguments to call.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tcalldesc.namedargcount">
+<short>Number of named arguments in the call.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tcalldesc.argtypes">
+<short>Types of arguments.</short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="tdispdesc">
+<short>COM/OLE dispatch call description.</short>
+<descr>
+<var>tcalldesc</var> is used to encode a dispatch call to an OLE dispatch 
+interface. It is used on windows only. It describes the dispath call call.
+</descr>
+<seealso>
+<link id="tcalldesc"/>
+</seealso>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="pdispdesc">
+<short>Pointer to <link id="tdispdesc"/> record</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tdispdesc.dispid">
+<short>Dispatch ID</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tdispdesc.restype">
+<short>Result type.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tdispdesc.calldesc">
+<short>Arguments description.</short>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="tvariantmanager">
+<short>Record describing the variant manager.</short>
+<descr>
+<var>TVariantManager</var> describes the variant manager as expected by the
+<link id="SetVariantManager"/> call.
+</descr>
+<seealso>
+<link id="SetVariantManager"/>
+</seealso>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vartoint">
+<short>Called to convert a variant to an integer value</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vartoint64">
+<short>Called to convert a variant to an int64 value</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vartoword64">
+<short>Called to convert a variant to a word64 value</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vartobool">
+<short>Called to convert a variant to a boolean value</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vartoreal">
+<short>Called to convert a variant to a  value</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vartocurr">
+<short>Called to convert a variant to a  value</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vartopstr">
+<short>Called to convert a variant to a  value</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vartolstr">
+<short>Called to convert a variant to a  value</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vartowstr">
+<short>Called to convert a variant to a  value</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vartointf">
+<short>Called to convert a variant to a  value</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vartodisp">
+<short>Called to convert a variant to a  value</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vartodynarray">
+<short>Called to convert a variant to a  value</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varfrombool">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varfromint">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varfromint64">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varfromword64">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varfromreal">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varfrompstr">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varfromlstr">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varfromwstr">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varfromintf">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varfromdisp">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varfromdynarray">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.olevarfrompstr">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.olevarfromlstr">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.olevarfromvar">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.olevarfromint">
+<short>Called to convert a  value to a variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varop">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.cmpop">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varneg">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varnot">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varinit">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varclear">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varaddref">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varcopy">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varcast">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.varcastole">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.dispinvoke">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vararrayredim">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vararrayget">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.vararrayput">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.writevariant">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="tvariantmanager.write0Variant">
+<short>Called to perform a variant operation: </short>
+</element>
+
+<!-- pointer type Visibility: default -->
+<element name="pvariantmanager">
+<short>Pointer to <link id="TVariantManager"/> record.</short>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="GetVariantManager">
+<short>Return the current variant manager.</short>
+<descr>
+<var>GetVariantManager</var> returns the current variant manager in
+<var>varmgr</var>.
+</descr>
+<seealso>
+<link id="IsVariantManagerSet"/>
+<link id="SetVariantManager"/>
+</seealso>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="SetVariantManager">
+<short>Set the current variant manager.</short>
+<descr>
+<var>SetVariantManager</var> sets the variant manager to <var>varmgr</var>.
+</descr>
+<seealso>
+<link id="IsVariantManagerSet"/>
+<link id="GetVariantManager"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="IsVariantManagerSet">
+<short>Determine if variant manager is currently set.</short>
+<descr>
+<p>
+<var>IsVariantManagerSet</var> determines whether the variant manager was
+set to a correct variant manager. It returns <var>True</var> if it is, 
+or <var>False</var> if it is not.
+</p>
+<p>
+The routine checks all variant operation handlers, they should all be set correctly.
+</p>
+</descr>
+<seealso>
+<link id="SetVariantManager"/>
+<link id="GetVariantManager"/>
+</seealso>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="VarDispProc">
+<short>Callback to perform dispatch interface procedure call by name.</short>
+<descr>
+<p>
+<var>VarDispProc</var> is called by the compiler if it needs to perform an
+interface call from a variant. For instance, the following call:
+</p>
+<code>
+Var
+  V : OleVariant;
+begin
+  V.OpenDocument('c:\temp\mydoc.doc');
+end;  
+</code>
+<p>
+is encoded by the compiler and passed to <var>VarDispProc</var>.
+</p>
+<p>
+This pointer must be set by a routine that calls the OS COM handling
+routines.
+</p>
+</descr>
+<seealso>
+<link id="DispCallByIDProc"/>
+</seealso>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="DispCallByIDProc">
+<short>Callback to perform dispatch interface procedure call by ID.</short>
+<descr>
+<p>
+<var>VarDispProc</var> is called by the compiler if it needs to perform an
+interface call from a variant which contains a dispatch interface. 
+For instance, the following call:
+</p>
+<code>
+Var
+  V : OleVariant;
+begin
+  (V as IWord).OpenDocument('c:\temp\mydoc.doc');
+end;
+</code>    
+<p>
+where <var>IWord</var> is a dispatch interface is encoded by the compiler and 
+passed to <var>DispCallByIDProc</var>.
+</p>
+<p>
+This pointer must be set by a routine that calls the OS COM handling
+routines.
+</p>
+</descr>
+<seealso>
+<link id="VarDispProc"/>
+</seealso>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="Null">
+<short>Null variant</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="Unassigned">
+<short>Unassigned variant.</short>
+</element>
+
+<!-- record type Visibility: default -->
+<element name="THeapStatus">
+<short>Record describing current heap status.</short>
+<descr>
+<var>THeapStatus</var> is the record describing the current heap status. It
+is returned by the <link id="GetHeapStatus"/> call.
+</descr>
+<seealso>
+<link id="GetHeapStatus"/>
+</seealso>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="THeapStatus.MaxHeapSize">
+<short>Biggest heap size used.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="THeapStatus.MaxHeapUsed">
+<short>Biggest used part of heap memory.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="THeapStatus.CurrHeapSize">
+<short>Current heap size. </short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="THeapStatus.CurrHeapUsed">
+<short>Current size of used heap memory.</short>
+</element>
+
+<!-- variable Visibility: default -->
+<element name="THeapStatus.CurrHeapFree">
+<short>Current size of free heap memory.</short>
+</element>
+
+<!-- procedure Visibility: default -->
+<element name="SysGetHeapStatus">
+<short>System implementation of <link id="GetHeapStatus"/></short>
+<descr>
+<var>SysGetHeapStatus</var> is the system implementation of the <link
+id="GetHeapStatus"/> call.
+</descr>
+<seealso>
+<link id="GetHeapStatus"/>
+</seealso>
+</element>
+
+<!-- function Visibility: default -->
+<element name="Heapsize">
+<short>Current heap size</short>
+<descr>
+<var>HeapSize</var> returns the current heap size. The heap grows
+dynamically (as allowed by the OS) and the <var>HeapSize</var> reflects the
+current state of the heap.
+</descr>
+<seealso>
+<link id="GetHeapStatus"/>
+</seealso>
+</element>
+
+
+</module>
+</package>
+</fpdoc-descriptions>

docs/sysutils.xml

@@ -2007,11 +2007,13 @@ None.
 </element>
 
 <element name="AnsiExtractQuotedStr">
-<short>Removes quotes from a string.</short>
+<short>Removes the first quoted string from a string.</short>
 <descr>
-<var>AnsiExtractQuotedStr</var> Returns <var>Src</var> as a string, with <var>Quote</var>
-characters removed from the beginning and end of the string, and double
-<var>Quote</var> characters replaced by a single <var>Quote</var> characters.
+<var>AnsiExtractQuotedStr</var> returns the first quoted string in
+<var>Src</var>, and deletes the result from <var>Src</var>. The resulting
+string has with <var>Quote</var> characters removed from the beginning and 
+end of the string (if they are present), and double <var>Quote</var> 
+characters replaced by a single <var>Quote</var> characters. 
 As such, it revereses the action of <link id="AnsiQuotedStr"/>.
 </descr>
 <errors>

docs/unix.xml

@@ -644,38 +644,6 @@
 <short>File system type (<link id="StatFS"/>): XIA</short>
 </element>
 
-<element name="MAP_PRIVATE">
-<short><link id="FpMMap"/> map type: Changes are private</short>
-</element>
-<element name="MAP_ANONYMOUS">
-<short><link id="FpMMap"/> map type: Don't use a file</short>
-</element>
-<element name="MAP_GROWSDOWN">
-<short><link id="FpMMap"/> option: Memory grows downward (like a stack)</short>
-</element>
-<element name="MAP_DENYWRITE">
-<short><link id="FpMMap"/> option: Ignored.</short>
-</element>
-<element name="MAP_EXECUTABLE">
-<short><link id="FpMMap"/> option: Ignored.</short>
-</element>
-<element name="MAP_LOCKED">
-<short><link id="FpMMap"/> option: lock the pages in memory.</short>
-</element>
-<element name="MAP_NORESERVE">
-<short><link id="FpMMap"/> option: Do not reserve swap pages for this memory.</short>
-</element>
-<element name="MAP_SHARED">
-<short><link id="FpMMap"/> map type: Share changes</short>
-</element>
-<element name="MAP_TYPE">
-<short><link id="FpMMap"/> map type: Bitmask for type of mapping</short>
-</element>
-<element name="MAP_FIXED">
-<short><link id="FpMMap"/> map type: Interpret addr exactly</short>
-</element>
-
-
 <!-- constant Visibility: default -->
 <element name="IOCtl_TCGETS">
 <short>IOCTL call number: get Terminal Control settings</short>
@@ -1095,18 +1063,6 @@
 <short>Timezone name.</short>
 </element>
 
-<element name="PROT_READ">
-<short><link id="FpMMap"/> memory access: page can be read</short>
-</element>
-<element name="PROT_WRITE">
-<short><link id="FpMMap"/> memory access: page can be written</short>
-</element>
-<element name="PROT_EXEC">
-<short><link id="FpMMap"/> memory access: page can be executed</short>
-</element>
-<element name="PROT_NONE">
-<short><link id="FpMMap"/> memory access: page can not be accessed</short>
-</element>
 
 
 <!-- enumeration type Visibility: default -->
@@ -1211,9 +1167,6 @@ it is adjusted to the local time zone, but not to DST.
 <errors>
 no errors
 </errors>
-<seealso>
-<link id="GetTime"/>
-</seealso>
 <example file="unixex/ex1"/>
 </element>
 
@@ -1240,7 +1193,6 @@ None
 <seealso>
 <link id="GetEpochTime"/>
 <link id="GetDate"/>
-<link id="GetDateTime"/>
 </seealso>
 <example file="unixex/ex5"/>
 </element>
@@ -1263,8 +1215,6 @@ None
 </errors>
 <seealso>
 <link id="GetEpochTime"/>
-<link id="GetTime"/>
-<link id="GetDateTime"/>
 <link id="SetTime"/>
 </seealso>
 <example file="unixex/ex6"/>
@@ -1283,7 +1233,6 @@ None
 </errors>
 <seealso>
 <link id="GetEpochTime"/>
-<link id="GetTime"/>
 <link id="GetDate"/> 
 <link id="SetDate"/>
 <link id="SetTime"/>
@@ -1309,11 +1258,9 @@ You must be root to execute this call.
 Extended error information can be retrieved with <link id="#rtl.baseunix.fpGetErrno">FpGetErrno</link>
 </errors>
 <seealso>
-<link id="GetTime"/>
 <link id="SetDate"/>
 <link id="GetDate"/>
 <link id="SetDateTime"/>
-<link id="GetDateTime"/>
 </seealso>
 </element>
 
@@ -1337,9 +1284,7 @@ Extended error information can be retrieved with <link id="#rtl.baseunix.fpGetEr
 <seealso>
 <link id="GetDate"/>
 <link id="SetTime"/>
-<link id="GetTime"/>
 <link id="SetDateTime"/>
-<link id="GetDateTime"/>
 </seealso>
 </element>
 
@@ -1365,8 +1310,6 @@ Extended error information can be retrieved with <link id="#rtl.baseunix.fpGetEr
 <link id="SetDate"/>
 <link id="SetTime"/>
 <link id="GetDate"/>
-<link id="GetTime"/>
-<link id="GetDateTime"/>
 </seealso>
 </element>
 
@@ -2092,7 +2035,7 @@ Extended error information is returned by the <link id="#rtl.baseunix.fpGetErrno
 </errors>
 <seealso>
 <link id="StatFS"/>
-<link id="FpLStat"/>
+<link id="#rtl.baseunix.FpLStat"/>
 </seealso>
 <example file="unixex/ex91"/>
 </element>
@@ -2126,7 +2069,7 @@ Extended error information is returned by the <link id="#rtl.baseunix.fpGetErrno
 </errors>
 <seealso>
 <link id="#rtl.baseunix.FpStat"/>
-<link id="FpLStat"/>
+<link id="#rtl.baseunix.FpLStat"/>
 </seealso>
 <example file="unixex/ex91"/>
 </element>
@@ -2390,7 +2333,6 @@ is to search the current directory first.
 An empty string if no such file was found.
 </errors>
 <seealso>
-<link id="FExpand"/>
 <link id="#rtl.unixutil.FNMatch"/>
 </seealso>
 <example file="unixex/ex46"/>
@@ -2458,110 +2400,6 @@ None.
 <example file="unixex/ex65"/>
 </element>
 
-<!-- function Visibility: default -->
-<element name="FpMMap">
-<short>Create memory map of a file</short>
-<descr>
-<p>
-<var>FpMMap</var> maps or unmaps files or devices into memory. The different
-arguments determine what and how the file is mapped:
-</p>
-<dl>
-<dt>adr</dt>
-<dd> Address where to mmap the device. This address is a hint,
-and may not be followed.</dd>
-<dt>len</dt><dd> Size (in bytes) of area to be mapped.</dd>
-<dt>prot</dt>
-<dd>
-<p> Protection of mapped memory. This is a OR-ed combination of the
-following constants:</p>
-<dl>
-<dt>PROT_EXEC</dt><dd> The memory can be executed.</dd>
-<dt>PROT_READ</dt><dd> The memory can be read.</dd>
-<dt>PROT_WRITE</dt><dd> The memory can be written.</dd>
-<dt>PROT_NONE</dt><dd> The memory can not be accessed.</dd>
-</dl>
-</dd>
-<dt>flags</dt><dd><p>Contains some options for the mmap call. It is an OR-ed
-combination of the following constants:</p>
-<dl>
-<dt>MAP_FIXED</dt>
-<dd> Do not map at another address than the given address. If the
-address cannot be used, <var>MMap</var> will fail.</dd>
-<dt>MAP_SHARED</dt>
-<dd> Share this map with other processes that map this object.</dd>
-<dt>MAP_PRIVATE</dt>
-<dd> Create a private map with copy-on-write semantics.</dd>
-<dt>MAP_ANONYMOUS</dt>
-<dd> <var>fd</var> does not have to be a file descriptor.</dd>
-</dl>
-<p>
-One of the options <var>MAP_SHARED</var> and <var>MAP_PRIVATE</var> must be present,
-but not both at the same time.
-</p>
-</dd>
-<dt>fd</dt><dd> File descriptor from which to map.</dd>
-<dt>off</dt><dd> Offset to be used in file descriptor <var>fd</var>.</dd>
-</dl>
-<p>
-The function returns a pointer to the mapped memory, or a -1 in case of en
-error.
-</p>
-</descr>
-<errors>
-<p>
-On error, -1 is returned and extended error information is returned by the <link id="#rtl.baseunix.fpGetErrno">FpGetErrno</link> function. 
-</p>
-<dl>
-<dt>Sys_EBADF</dt>
-<dd> <var>fd</var> is not a valid file descriptor and 
-<var>MAP_ANONYMOUS</var> was not specified.</dd>
-<dt>Sys_EACCES</dt>
-<dd><var>MAP_PRIVATE</var> was specified, but <var>fd</var> is not open for
-reading. Or <var>MAP_SHARED</var> was asked and <var>PROT_WRITE</var> is  set, fd
-is not open for writing</dd>
-<dt>Sys_EINVAL</dt>
-<dd> One of the record fields <var>Start</var>, <var>length</var> or
-<var>offset</var> is invalid.</dd>
-<dt>Sys_ETXTBUSY</dt>
-<dd><var>MAP_DENYWRITE</var> was set but the object specified
-by fd is open for writing.</dd>
-<dt>Sys_EAGAIN</dt>
-<dd><var>fd</var> is locked, or too much memory is locked.</dd>
-<dt>Sys_ENOMEM</dt>
-<dd> Not enough memory for this operation.</dd>
-</dl>
-</errors>
-<seealso>
-<link id="FpMUnMap"/>
-</seealso>
-<example file="unixex/ex66"/>
-</element>
-
-<!-- function Visibility: default -->
-<element name="Fpmunmap">
-<short>Unmap previously mapped memory block</short>
-<descr>
-<p>
-<var>FpMUnMap</var> unmaps the memory block of size <var>Len</var>, pointed to by 
-<var>Adr</var>, which was previously allocated with <link id="FpMMap"/>.
-</p>
-<p>
-The function returns <var>True</var> if successful, <var>False</var> otherwise.
-</p>
-<p>
-For an example, see <link id="FpMMap"/>.
-</p>
-</descr>
-<errors>
-In case of error the function returns a nonzero value, 
-extended error information is returned by the <link id="#rtl.baseunix.fpGetErrno">FpGetErrno</link> function. 
-See <link id="FpMMap"/> for possible error values.
-</errors>
-<seealso>
-<link id="FpMMap"/>
-</seealso>
-</element>
 
 <!-- function Visibility: default -->
 <element name="fpgettimeofday">
@@ -2573,263 +2411,12 @@ See <link id="FpMMap"/> for possible error values.
 not taking into account timezones, daylight savings time and so on.
 </p>
 <p>
-It is simply a wrapper to the kernel system call. To get the local time,
-<link id="GetTime"/>.
+It is simply a wrapper to the kernel system call. 
 </p>
 </descr>
 <errors>
 None.
 </errors>
-<seealso>
-<link id="GetTime"/>
-<link id="GetDateTime"/>
-</seealso>
-</element>
-
-<!-- function Visibility: default -->
-<element name="fpNice">
-<short>Set process priority</short>
-<descr>
-<p>
-<var>Nice</var> adds <var>-N</var> to the priority of the running process. The lower the
-priority numerically, the less the process is favored.
-Only the superuser can specify a negative <var>N</var>, i.e. increase the rate at
-which the process is run.
-</p>
-<p>
-If the function is succesful, zero is returned. On error, a nonzero value is returned. 
-</p>
-</descr>
-<errors>
-<p>
-Extended error information is returned by the <link id="#rtl.baseunix.fpGetErrno">FpGetErrno</link> function. 
-</p>
-<dl>
-<dt>sys_eperm</dt><dd> A non-superuser tried to specify a negative <var>N</var>, i.e.
-do a priority increase.</dd>
-</dl>
-</errors>
-<seealso>
-<link id="FpGetPriority"/>
-<link id="FpSetPriority"/>
-</seealso>
-<example file="unixex/ex15"/>
-</element>
-
-<!-- function Visibility: default -->
-<element name="fpGetPriority">
-<short>Return process priority</short>
-<descr>
-<p>
-GetPriority returns the priority with which a process is running.
-Which process(es) is determined by the <var>Which</var> and <var>Who</var> variables.
-<var>Which</var> can be one of the pre-defined <var>Prio_Process</var>,
-<var>Prio_PGrp</var>, <var>Prio_User</var>, in which case <var>Who</var> is the process ID, Process group ID or
-User ID, respectively.
-</p>
-<p>
-For an example, see <link id="FpNice"/>.
-</p>
-</descr>
-<errors>
-<p>
-Error information is returned solely by the <link id="#rtl.baseunix.fpGetErrno">FpGetErrno</link>
-function:  a priority can be a positive or negative value.
-</p>
-<dl>
-<dt>sys_esrch</dt>
-<dd> No process found using <var>which</var> and <var>who</var>. </dd>
-<dt>sys_einval</dt>
-<dd> <var>Which</var> was not one of <var>Prio_Process</var>,
-<var>Prio_Grp</var> or <var>Prio_User</var>.</dd>
-</dl>
-</errors>
-<seealso>
-<link id="FpSetPriority"/>
-<link id="FpNice"/>
-</seealso>
-</element>
-
-<!-- function Visibility: default -->
-<element name="fpSetPriority">
-<short>Set process priority</short>
-<descr>
-<p>
-<var>fpSetPriority</var> sets the priority with which a process is running.
-Which process(es) is determined by the <var>Which</var> and <var>Who</var> variables.
-<var>Which</var> can be one of the pre-defined constants:
-</p>
-<dl>
-<dt>Prio_Process</dt><dd><var>Who</var> is interpreted as process ID</dd>
-<dt>Prio_PGrp</dt><dd><var>Who</var> is interpreted as process group ID</dd>
-<dt>Prio_User</dt><dd><var>Who</var> is interpreted as user ID</dd>
-</dl>
-<p>
-<var>Prio</var> is a value in the range -20 to 20.
-</p>
-<p>
-For an example, see <link id="FpNice"/>.
-</p>
-<p>
-The function returns zero on success, -1 on failure
-</p>
-</descr>
-<errors>
-<p>
-Extended error information is returned  by the <link id="#rtl.baseunix.fpGetErrno">FpGetErrno</link>
-function.
-</p>
-<dl>
-<dt>sys_esrch</dt>
-<dd>No process found using <var>which</var> and <var>who</var>.</dd>
-<dt>sys_einval</dt>
-<dd> <var>Which</var> was not one of <var>Prio_Process</var>,
-<var>Prio_Grp</var> or <var>Prio_User</var>.</dd>
-<dt>sys_eperm</dt>
-<dd>A process was found, but neither its effective or real
-user ID match the effective user ID of the caller.</dd>
-<dt>sys_eacces</dt>
-<dd>A non-superuser tried to a priority increase.</dd>
-</dl>
-</errors>
-<seealso>
-<link id="FpGetPriority"/>
-<link id="FpNice"/>
-</seealso>
-</element>
-
-<!-- function Visibility: default -->
-<element name="fpLstat">
-<short>Return information about symbolic link. Do not follow the link</short>
-<descr>
-<var>FpLstat</var> gets information about the link specified in <var>Path</var>
-(or <var>FileName</var>, and stores it in <var>Info</var>, which points to a
-record of  type <var>TStat</var>. Contrary to <link
-id="#rtl.baseunix.FpFStat">FpFstat</link>, it stores
-information about the link, not about the file the link points to.
-The function returns zero if the call was succesful, a nonzero return value
-indicates failure.
-failed.
-</descr>
-<errors>
-<p>
-Extended error information is returned  by the <link id="#rtl.baseunix.fpGetErrno">FpGetErrno</link>
-function.
-</p>
-<dl>
-<dt>sys_enoent</dt><dd> <var>Path</var> does not exist.</dd>
-</dl>
-</errors>
-<seealso>
-<link id="#rtl.baseunix.FpFStat"/>
-<link id="StatFS"/>
-</seealso>
-<example file="unixex/ex29"/>
-</element>
-
-
-<!-- function Visibility: default -->
-<element name="fpSymlink">
-<short>Create a symbolic link</short>
-<descr>
-<p>
-<var>SymLink</var> makes <var>NewName</var> point to the file in
-<var>OldName</var>, which doesn't necessarily exist. The two files 
-DO NOT have the same inode number. This is known as a 'soft' link.
-</p>
-<p>The permissions of the link are irrelevant, as they are not used when
-following the link. Ownership of the file is only checked in case of removal
-or renaming of the link.
-</p>
-<p>
-The function returns zero if the call was succesful, a nonzero value if the call
-failed.
-</p>
-</descr>
-<errors>
-<p>
-Extended error information is returned  by the <link id="#rtl.baseunix.fpGetErrno">FpGetErrno</link>
-function.
-</p>
-<dl>
-<dt>sys_eperm</dt>
-<dd>The filesystem containing oldpath and newpath does not
-support linking files.</dd>
-<dt>sys_eaccess</dt>
-<dd>Write access for the directory containing <var>Newpath</var>
-is disallowed, or one of the directories in <var>OldPath</var> or
-<var>NewPath</var> has no search (=execute) permission.</dd>
-<dt>sys_enoent</dt>
-<dd>A directory entry in <var>OldPath</var> or <var>NewPath</var> does
-not exist or is a symbolic link pointing to a non-existent directory.</dd>
-<dt>sys_enotdir</dt>
-<dd>A directory entry in <var>OldPath</var> or <var>NewPath</var> is
-nor a directory.</dd>
-<dt>sys_enomem</dt><dd>Insufficient kernel memory.</dd>
-<dt>sys_erofs</dt><dd>The files are on a read-only filesystem.</dd>
-<dt>sys_eexist</dt><dd><var>NewPath</var> already exists.</dd>
-<dt>sys_eloop</dt>
-<dd> <var>OldPath</var> or <var>NewPath</var> has a reference to a circular
-symbolic link, i.e. a symbolic link, whose expansion points to itself.
-</dd>
-<dt>sys_enospc</dt>
-<dd>The device containing <var>NewPath</var> has no room for another entry.</dd>
-</dl>
-</errors>
-<seealso>
-<link id="#rtl.baseunix.FpLink"/>
-<link id="#rtl.baseunix.FpUnLink"/>
-<link id="FpReadLink"/>
-</seealso>
-<example file="unixex/ex22"/>
-</element>
-
-<!-- function Visibility: default -->
-<element name="fpReadLink">
-<short>Read destination of symbolic link</short>
-<descr>
-<p>
-<var>FpReadLink</var> returns the file the symbolic link <var>name</var> is pointing
-to. The first form of this function accepts a buffer <var>linkname</var> of
-length <var>maxlen</var> where the filename will be stored. It returns the
-actual number of characters stored in the buffer.
-</p>
-<p>
-The second form of the function returns simply the name of the file.
-</p>
-</descr>
-<errors>
-<p>
-On error, the first form of the function returns -1; the second one returns
-an empty string.
-Extended error information is returned  by the <link id="#rtl.baseunix.fpGetErrno">FpGetErrno</link>
-function.
-</p>
-<dl>
-<dt>SYS_ENOTDIR</dt>
-<dd>A part of the path in <var>Name</var> is not a directory.</dd>
-<dt>SYS_EINVAL</dt>
-<dd>maxlen is not positive, or the  file is not a symbolic link.</dd>
-<dt>SYS_ENAMETOOLONG</dt>
-<dd>A pathname, or a component of a pathname, was too long.</dd>
-<dt>SYS_ENOENT</dt>
-<dd>the link <var>name</var> does not exist.</dd>
-<dt>SYS_EACCES</dt>
-<dd>No permission to search a directory in the path</dd>
-<dt>SYS_ELOOP</dt>
-<dd>Too many symbolic links were encountered in  translating the pathname.</dd>
-<dt>SYS_EIO</dt>
-<dd>An I/O error occurred while reading from the file system.</dd>
-<dt>SYS_EFAULT</dt>
-<dd>The buffer is not part of the the process's memory space.</dd>
-<dt>SYS_ENOMEM</dt>
-<dd>Not enough kernel memory was available.</dd>
-</dl>
-</errors>
-<seealso>
-<link id="FpSymLink"/>
-</seealso>
-<example file="unixex/ex62"/>
 </element>
 
 <!-- function Visibility: default -->

docs/unixutil.xml

@@ -66,7 +66,6 @@ None.
 </errors>
 <seealso>
 <link id="BaseName"/>
-<link id="#rtl.unix.FExpand"/>
 </seealso>
 <example file="unutilex/ex47"/>
 </element>
@@ -99,9 +98,7 @@ None.
 </errors>
 <seealso>
 <link id="ArrayStringToPPchar"/>
-<link id="#rtl.unix.CreateShellArgV"/>
 <link id="#rtl.baseunix.FpExecve"/>
-<link id="#rtl.unix.Execv"/>
 </seealso>
 <example file="unutilex/ex70"/>
 </element>
@@ -149,7 +146,6 @@ None.
 </errors>
 <seealso>
 <link id="DirName"/>
-<link id="#rtl.unix.FExpand"/>
 </seealso>
 <example file="unutilex/ex48"/>
 </element>
@@ -172,7 +168,6 @@ None.
 </errors>
 <seealso>
 <link id="#rtl.unix.FSearch"/>
-<link id="#rtl.unix.FExpand"/>
 </seealso>
 <example file="unutilex/ex69"/>
 </element>
@@ -222,10 +217,7 @@ Converts the Local time to epoch time (=Number of seconds since 00:00:00 , Janua
 None
 </errors>
 <seealso>
-<link id="#rtl.unix.GetEpochTime"/>
 <link id="EpochToLocal"/>
-<link id="#rtl.unix.GetTime"/>
-<link id="#rtl.unix.GetDate"/> 
 </seealso>
 <example file="unutilex/ex4"/>
 </element>
@@ -246,10 +238,7 @@ This function takes into account the timzeone settings of your system.
 None
 </errors>
 <seealso>
-<link id="#rtl.unix.GetEpochTime"/>
 <link id="LocalToEpoch"/>
-<link id="#rtl.unix.GetTime"/>
-<link id="#rtl.unix.GetDate"/> 
 </seealso>
 <example file="unutilex/ex3"/>
 </element>