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@@ -183,7 +183,7 @@ and raises an \var{EAssertionFailed} exception.
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\subsection{\var{\protect\$CHECKPOINTER} : Check pointer values}
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The \var{\{\$CHECKPOINTER\}} directive turns heap pointer checking on (value
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-\var{ON}} or off (value \var{OFF}). When heap pointer checking is on and the
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+\var{ON}) or off (value \var{OFF}). When heap pointer checking is on and the
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code is compiled with the \var{-gh} (heaptrace) option on, then a check is
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inserted when dereferencing a pointer. The check will verify that the
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pointer contains a valid value, i.e. points to a location that is reachable
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@@ -503,16 +503,17 @@ be used. It accepts the following three values:
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The \var{\{\$I-\}} or \var{\{\$IOCHECKS OFF\}} directive tells the compiler
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not to generate input/output checking code in the program. By default, the
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-compiler does not generate this code, it must be switched on using the \var{-Ci}
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-command-line switch.
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+compiler generates I/O checking code. This behaviour can be controlled
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+globally with the \var{-Ci} switch.
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When compiling using the \var{-Ci} compiler switch, the \fpc compiler inserts
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input/output checking code after every input/output call in the code.
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If an error occurred during input or output, then a run-time error will
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-be generated. Use this switch to avoid this behaviour.
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+be generated. This switch can also be used to avoid this behaviour.
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-To check if something went wrong, the \var{IOResult} function can be used
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-to see if everything went without problems.
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+If no I/O checking code is generated, to check if something went wrong,
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+the \var{IOResult} function can be used to see if everything went without
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+problems.
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Conversely, \var{\{\$I+\}} will turn error-checking back on, until another
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directive is encountered which turns it off again.
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michael