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- package java.lang;
- /*
- * Copyright (c) 1994, 2010, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code 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 General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
- /**
- * The {@code Float} class wraps a value of primitive type
- * {@code float} in an object. An object of type
- * {@code Float} contains a single field whose type is
- * {@code float}.
- *
- * <p>In addition, this class provides several methods for converting a
- * {@code float} to a {@code String} and a
- * {@code String} to a {@code float}, as well as other
- * constants and methods useful when dealing with a
- * {@code float}.
- *
- * @author Lee Boynton
- * @author Arthur van Hoff
- * @author Joseph D. Darcy
- * @since JDK1.0
- */
- @:require(java0) extern class Float extends java.lang.Number implements java.lang.Comparable<Float>
- {
- /**
- * A constant holding the positive infinity of type
- * {@code float}. It is equal to the value returned by
- * {@code Float.intBitsToFloat(0x7f800000)}.
- */
- public static var POSITIVE_INFINITY(default, null) : Single;
-
- /**
- * A constant holding the negative infinity of type
- * {@code float}. It is equal to the value returned by
- * {@code Float.intBitsToFloat(0xff800000)}.
- */
- public static var NEGATIVE_INFINITY(default, null) : Single;
-
- /**
- * A constant holding a Not-a-Number (NaN) value of type
- * {@code float}. It is equivalent to the value returned by
- * {@code Float.intBitsToFloat(0x7fc00000)}.
- */
- public static var NaN(default, null) : Single;
-
- /**
- * A constant holding the largest positive finite value of type
- * {@code float}, (2-2<sup>-23</sup>)·2<sup>127</sup>.
- * It is equal to the hexadecimal floating-point literal
- * {@code 0x1.fffffeP+127f} and also equal to
- * {@code Float.intBitsToFloat(0x7f7fffff)}.
- */
- public static var MAX_VALUE(default, null) : Single;
-
- /**
- * A constant holding the smallest positive normal value of type
- * {@code float}, 2<sup>-126</sup>. It is equal to the
- * hexadecimal floating-point literal {@code 0x1.0p-126f} and also
- * equal to {@code Float.intBitsToFloat(0x00800000)}.
- *
- * @since 1.6
- */
- @:require(java6) public static var MIN_NORMAL(default, null) : Single;
-
- /**
- * A constant holding the smallest positive nonzero value of type
- * {@code float}, 2<sup>-149</sup>. It is equal to the
- * hexadecimal floating-point literal {@code 0x0.000002P-126f}
- * and also equal to {@code Float.intBitsToFloat(0x1)}.
- */
- public static var MIN_VALUE(default, null) : Single;
-
- /**
- * Maximum exponent a finite {@code float} variable may have. It
- * is equal to the value returned by {@code
- * Math.getExponent(Float.MAX_VALUE)}.
- *
- * @since 1.6
- */
- @:require(java6) public static var MAX_EXPONENT(default, null) : Int;
-
- /**
- * Minimum exponent a normalized {@code float} variable may have.
- * It is equal to the value returned by {@code
- * Math.getExponent(Float.MIN_NORMAL)}.
- *
- * @since 1.6
- */
- @:require(java6) public static var MIN_EXPONENT(default, null) : Int;
-
- /**
- * The number of bits used to represent a {@code float} value.
- *
- * @since 1.5
- */
- @:require(java5) public static var SIZE(default, null) : Int;
-
- /**
- * The {@code Class} instance representing the primitive type
- * {@code float}.
- *
- * @since JDK1.1
- */
- @:require(java1) public static var TYPE(default, null) : Class<Float>;
-
- /**
- * Returns a string representation of the {@code float}
- * argument. All characters mentioned below are ASCII characters.
- * <ul>
- * <li>If the argument is NaN, the result is the string
- * "{@code NaN}".
- * <li>Otherwise, the result is a string that represents the sign and
- * magnitude (absolute value) of the argument. If the sign is
- * negative, the first character of the result is
- * '{@code -}' (<code>'\u002D'</code>); if the sign is
- * positive, no sign character appears in the result. As for
- * the magnitude <i>m</i>:
- * <ul>
- * <li>If <i>m</i> is infinity, it is represented by the characters
- * {@code "Infinity"}; thus, positive infinity produces
- * the result {@code "Infinity"} and negative infinity
- * produces the result {@code "-Infinity"}.
- * <li>If <i>m</i> is zero, it is represented by the characters
- * {@code "0.0"}; thus, negative zero produces the result
- * {@code "-0.0"} and positive zero produces the result
- * {@code "0.0"}.
- * <li> If <i>m</i> is greater than or equal to 10<sup>-3</sup> but
- * less than 10<sup>7</sup>, then it is represented as the
- * integer part of <i>m</i>, in decimal form with no leading
- * zeroes, followed by '{@code .}'
- * (<code>'\u002E'</code>), followed by one or more
- * decimal digits representing the fractional part of
- * <i>m</i>.
- * <li> If <i>m</i> is less than 10<sup>-3</sup> or greater than or
- * equal to 10<sup>7</sup>, then it is represented in
- * so-called "computerized scientific notation." Let <i>n</i>
- * be the unique integer such that 10<sup><i>n</i> </sup>≤
- * <i>m</i> {@literal <} 10<sup><i>n</i>+1</sup>; then let <i>a</i>
- * be the mathematically exact quotient of <i>m</i> and
- * 10<sup><i>n</i></sup> so that 1 ≤ <i>a</i> {@literal <} 10.
- * The magnitude is then represented as the integer part of
- * <i>a</i>, as a single decimal digit, followed by
- * '{@code .}' (<code>'\u002E'</code>), followed by
- * decimal digits representing the fractional part of
- * <i>a</i>, followed by the letter '{@code E}'
- * (<code>'\u0045'</code>), followed by a representation
- * of <i>n</i> as a decimal integer, as produced by the
- * method {@link java.lang.Integer#toString(int)}.
- *
- * </ul>
- * </ul>
- * How many digits must be printed for the fractional part of
- * <i>m</i> or <i>a</i>? There must be at least one digit
- * to represent the fractional part, and beyond that as many, but
- * only as many, more digits as are needed to uniquely distinguish
- * the argument value from adjacent values of type
- * {@code float}. That is, suppose that <i>x</i> is the
- * exact mathematical value represented by the decimal
- * representation produced by this method for a finite nonzero
- * argument <i>f</i>. Then <i>f</i> must be the {@code float}
- * value nearest to <i>x</i>; or, if two {@code float} values are
- * equally close to <i>x</i>, then <i>f</i> must be one of
- * them and the least significant bit of the significand of
- * <i>f</i> must be {@code 0}.
- *
- * <p>To create localized string representations of a floating-point
- * value, use subclasses of {@link java.text.NumberFormat}.
- *
- * @param f the float to be converted.
- * @return a string representation of the argument.
- */
- @:native('toString') @:overload public static function _toString(f : Single) : String;
-
- /**
- * Returns a hexadecimal string representation of the
- * {@code float} argument. All characters mentioned below are
- * ASCII characters.
- *
- * <ul>
- * <li>If the argument is NaN, the result is the string
- * "{@code NaN}".
- * <li>Otherwise, the result is a string that represents the sign and
- * magnitude (absolute value) of the argument. If the sign is negative,
- * the first character of the result is '{@code -}'
- * (<code>'\u002D'</code>); if the sign is positive, no sign character
- * appears in the result. As for the magnitude <i>m</i>:
- *
- * <ul>
- * <li>If <i>m</i> is infinity, it is represented by the string
- * {@code "Infinity"}; thus, positive infinity produces the
- * result {@code "Infinity"} and negative infinity produces
- * the result {@code "-Infinity"}.
- *
- * <li>If <i>m</i> is zero, it is represented by the string
- * {@code "0x0.0p0"}; thus, negative zero produces the result
- * {@code "-0x0.0p0"} and positive zero produces the result
- * {@code "0x0.0p0"}.
- *
- * <li>If <i>m</i> is a {@code float} value with a
- * normalized representation, substrings are used to represent the
- * significand and exponent fields. The significand is
- * represented by the characters {@code "0x1."}
- * followed by a lowercase hexadecimal representation of the rest
- * of the significand as a fraction. Trailing zeros in the
- * hexadecimal representation are removed unless all the digits
- * are zero, in which case a single zero is used. Next, the
- * exponent is represented by {@code "p"} followed
- * by a decimal string of the unbiased exponent as if produced by
- * a call to {@link Integer#toString(int) Integer.toString} on the
- * exponent value.
- *
- * <li>If <i>m</i> is a {@code float} value with a subnormal
- * representation, the significand is represented by the
- * characters {@code "0x0."} followed by a
- * hexadecimal representation of the rest of the significand as a
- * fraction. Trailing zeros in the hexadecimal representation are
- * removed. Next, the exponent is represented by
- * {@code "p-126"}. Note that there must be at
- * least one nonzero digit in a subnormal significand.
- *
- * </ul>
- *
- * </ul>
- *
- * <table border>
- * <caption><h3>Examples</h3></caption>
- * <tr><th>Floating-point Value</th><th>Hexadecimal String</th>
- * <tr><td>{@code 1.0}</td> <td>{@code 0x1.0p0}</td>
- * <tr><td>{@code -1.0}</td> <td>{@code -0x1.0p0}</td>
- * <tr><td>{@code 2.0}</td> <td>{@code 0x1.0p1}</td>
- * <tr><td>{@code 3.0}</td> <td>{@code 0x1.8p1}</td>
- * <tr><td>{@code 0.5}</td> <td>{@code 0x1.0p-1}</td>
- * <tr><td>{@code 0.25}</td> <td>{@code 0x1.0p-2}</td>
- * <tr><td>{@code Float.MAX_VALUE}</td>
- * <td>{@code 0x1.fffffep127}</td>
- * <tr><td>{@code Minimum Normal Value}</td>
- * <td>{@code 0x1.0p-126}</td>
- * <tr><td>{@code Maximum Subnormal Value}</td>
- * <td>{@code 0x0.fffffep-126}</td>
- * <tr><td>{@code Float.MIN_VALUE}</td>
- * <td>{@code 0x0.000002p-126}</td>
- * </table>
- * @param f the {@code float} to be converted.
- * @return a hex string representation of the argument.
- * @since 1.5
- * @author Joseph D. Darcy
- */
- @:require(java5) @:overload public static function toHexString(f : Single) : String;
-
- /**
- * Returns a {@code Float} object holding the
- * {@code float} value represented by the argument string
- * {@code s}.
- *
- * <p>If {@code s} is {@code null}, then a
- * {@code NullPointerException} is thrown.
- *
- * <p>Leading and trailing whitespace characters in {@code s}
- * are ignored. Whitespace is removed as if by the {@link
- * String#trim} method; that is, both ASCII space and control
- * characters are removed. The rest of {@code s} should
- * constitute a <i>FloatValue</i> as described by the lexical
- * syntax rules:
- *
- * <blockquote>
- * <dl>
- * <dt><i>FloatValue:</i>
- * <dd><i>Sign<sub>opt</sub></i> {@code NaN}
- * <dd><i>Sign<sub>opt</sub></i> {@code Infinity}
- * <dd><i>Sign<sub>opt</sub> FloatingPointLiteral</i>
- * <dd><i>Sign<sub>opt</sub> HexFloatingPointLiteral</i>
- * <dd><i>SignedInteger</i>
- * </dl>
- *
- * <p>
- *
- * <dl>
- * <dt><i>HexFloatingPointLiteral</i>:
- * <dd> <i>HexSignificand BinaryExponent FloatTypeSuffix<sub>opt</sub></i>
- * </dl>
- *
- * <p>
- *
- * <dl>
- * <dt><i>HexSignificand:</i>
- * <dd><i>HexNumeral</i>
- * <dd><i>HexNumeral</i> {@code .}
- * <dd>{@code 0x} <i>HexDigits<sub>opt</sub>
- * </i>{@code .}<i> HexDigits</i>
- * <dd>{@code 0X}<i> HexDigits<sub>opt</sub>
- * </i>{@code .} <i>HexDigits</i>
- * </dl>
- *
- * <p>
- *
- * <dl>
- * <dt><i>BinaryExponent:</i>
- * <dd><i>BinaryExponentIndicator SignedInteger</i>
- * </dl>
- *
- * <p>
- *
- * <dl>
- * <dt><i>BinaryExponentIndicator:</i>
- * <dd>{@code p}
- * <dd>{@code P}
- * </dl>
- *
- * </blockquote>
- *
- * where <i>Sign</i>, <i>FloatingPointLiteral</i>,
- * <i>HexNumeral</i>, <i>HexDigits</i>, <i>SignedInteger</i> and
- * <i>FloatTypeSuffix</i> are as defined in the lexical structure
- * sections of
- * <cite>The Java™ Language Specification</cite>,
- * except that underscores are not accepted between digits.
- * If {@code s} does not have the form of
- * a <i>FloatValue</i>, then a {@code NumberFormatException}
- * is thrown. Otherwise, {@code s} is regarded as
- * representing an exact decimal value in the usual
- * "computerized scientific notation" or as an exact
- * hexadecimal value; this exact numerical value is then
- * conceptually converted to an "infinitely precise"
- * binary value that is then rounded to type {@code float}
- * by the usual round-to-nearest rule of IEEE 754 floating-point
- * arithmetic, which includes preserving the sign of a zero
- * value.
- *
- * Note that the round-to-nearest rule also implies overflow and
- * underflow behaviour; if the exact value of {@code s} is large
- * enough in magnitude (greater than or equal to ({@link
- * #MAX_VALUE} + {@link Math#ulp(float) ulp(MAX_VALUE)}/2),
- * rounding to {@code float} will result in an infinity and if the
- * exact value of {@code s} is small enough in magnitude (less
- * than or equal to {@link #MIN_VALUE}/2), rounding to float will
- * result in a zero.
- *
- * Finally, after rounding a {@code Float} object representing
- * this {@code float} value is returned.
- *
- * <p>To interpret localized string representations of a
- * floating-point value, use subclasses of {@link
- * java.text.NumberFormat}.
- *
- * <p>Note that trailing format specifiers, specifiers that
- * determine the type of a floating-point literal
- * ({@code 1.0f} is a {@code float} value;
- * {@code 1.0d} is a {@code double} value), do
- * <em>not</em> influence the results of this method. In other
- * words, the numerical value of the input string is converted
- * directly to the target floating-point type. In general, the
- * two-step sequence of conversions, string to {@code double}
- * followed by {@code double} to {@code float}, is
- * <em>not</em> equivalent to converting a string directly to
- * {@code float}. For example, if first converted to an
- * intermediate {@code double} and then to
- * {@code float}, the string<br>
- * {@code "1.00000017881393421514957253748434595763683319091796875001d"}<br>
- * results in the {@code float} value
- * {@code 1.0000002f}; if the string is converted directly to
- * {@code float}, <code>1.000000<b>1</b>f</code> results.
- *
- * <p>To avoid calling this method on an invalid string and having
- * a {@code NumberFormatException} be thrown, the documentation
- * for {@link Double#valueOf Double.valueOf} lists a regular
- * expression which can be used to screen the input.
- *
- * @param s the string to be parsed.
- * @return a {@code Float} object holding the value
- * represented by the {@code String} argument.
- * @throws NumberFormatException if the string does not contain a
- * parsable number.
- */
- @:overload public static function valueOf(s : String) : Float;
-
- /**
- * Returns a {@code Float} instance representing the specified
- * {@code float} value.
- * If a new {@code Float} instance is not required, this method
- * should generally be used in preference to the constructor
- * {@link #Float(float)}, as this method is likely to yield
- * significantly better space and time performance by caching
- * frequently requested values.
- *
- * @param f a float value.
- * @return a {@code Float} instance representing {@code f}.
- * @since 1.5
- */
- @:require(java5) @:overload public static function valueOf(f : Single) : Float;
-
- /**
- * Returns a new {@code float} initialized to the value
- * represented by the specified {@code String}, as performed
- * by the {@code valueOf} method of class {@code Float}.
- *
- * @param s the string to be parsed.
- * @return the {@code float} value represented by the string
- * argument.
- * @throws NullPointerException if the string is null
- * @throws NumberFormatException if the string does not contain a
- * parsable {@code float}.
- * @see java.lang.Float#valueOf(String)
- * @since 1.2
- */
- @:require(java2) @:overload public static function parseFloat(s : String) : Single;
-
- /**
- * Returns {@code true} if the specified number is a
- * Not-a-Number (NaN) value, {@code false} otherwise.
- *
- * @param v the value to be tested.
- * @return {@code true} if the argument is NaN;
- * {@code false} otherwise.
- */
- @:native('isNaN') @:overload public static function _isNaN(v : Single) : Bool;
-
- /**
- * Returns {@code true} if the specified number is infinitely
- * large in magnitude, {@code false} otherwise.
- *
- * @param v the value to be tested.
- * @return {@code true} if the argument is positive infinity or
- * negative infinity; {@code false} otherwise.
- */
- @:native('isInfinite') @:overload public static function _isInfinite(v : Single) : Bool;
-
- /**
- * Constructs a newly allocated {@code Float} object that
- * represents the primitive {@code float} argument.
- *
- * @param value the value to be represented by the {@code Float}.
- */
- @:overload public function new(value : Single) : Void;
-
- /**
- * Constructs a newly allocated {@code Float} object that
- * represents the argument converted to type {@code float}.
- *
- * @param value the value to be represented by the {@code Float}.
- */
- @:overload public function new(value : Float) : Void;
-
- /**
- * Constructs a newly allocated {@code Float} object that
- * represents the floating-point value of type {@code float}
- * represented by the string. The string is converted to a
- * {@code float} value as if by the {@code valueOf} method.
- *
- * @param s a string to be converted to a {@code Float}.
- * @throws NumberFormatException if the string does not contain a
- * parsable number.
- * @see java.lang.Float#valueOf(java.lang.String)
- */
- @:overload public function new(s : String) : Void;
-
- /**
- * Returns {@code true} if this {@code Float} value is a
- * Not-a-Number (NaN), {@code false} otherwise.
- *
- * @return {@code true} if the value represented by this object is
- * NaN; {@code false} otherwise.
- */
- @:overload public function isNaN() : Bool;
-
- /**
- * Returns {@code true} if this {@code Float} value is
- * infinitely large in magnitude, {@code false} otherwise.
- *
- * @return {@code true} if the value represented by this object is
- * positive infinity or negative infinity;
- * {@code false} otherwise.
- */
- @:overload public function isInfinite() : Bool;
-
- /**
- * Returns a string representation of this {@code Float} object.
- * The primitive {@code float} value represented by this object
- * is converted to a {@code String} exactly as if by the method
- * {@code toString} of one argument.
- *
- * @return a {@code String} representation of this object.
- * @see java.lang.Float#toString(float)
- */
- @:overload public function toString() : String;
-
- /**
- * Returns the value of this {@code Float} as a {@code byte} (by
- * casting to a {@code byte}).
- *
- * @return the {@code float} value represented by this object
- * converted to type {@code byte}
- */
- @:overload override public function byteValue() : java.StdTypes.Int8;
-
- /**
- * Returns the value of this {@code Float} as a {@code short} (by
- * casting to a {@code short}).
- *
- * @return the {@code float} value represented by this object
- * converted to type {@code short}
- * @since JDK1.1
- */
- @:require(java1) @:overload override public function shortValue() : java.StdTypes.Int16;
-
- /**
- * Returns the value of this {@code Float} as an {@code int} (by
- * casting to type {@code int}).
- *
- * @return the {@code float} value represented by this object
- * converted to type {@code int}
- */
- @:overload override public function intValue() : Int;
-
- /**
- * Returns value of this {@code Float} as a {@code long} (by
- * casting to type {@code long}).
- *
- * @return the {@code float} value represented by this object
- * converted to type {@code long}
- */
- @:overload override public function longValue() : haxe.Int64;
-
- /**
- * Returns the {@code float} value of this {@code Float} object.
- *
- * @return the {@code float} value represented by this object
- */
- @:overload override public function floatValue() : Single;
-
- /**
- * Returns the {@code double} value of this {@code Float} object.
- *
- * @return the {@code float} value represented by this
- * object is converted to type {@code double} and the
- * result of the conversion is returned.
- */
- @:overload override public function doubleValue() : Float;
-
- /**
- * Returns a hash code for this {@code Float} object. The
- * result is the integer bit representation, exactly as produced
- * by the method {@link #floatToIntBits(float)}, of the primitive
- * {@code float} value represented by this {@code Float}
- * object.
- *
- * @return a hash code value for this object.
- */
- @:overload public function hashCode() : Int;
-
- /**
- * Compares this object against the specified object. The result
- * is {@code true} if and only if the argument is not
- * {@code null} and is a {@code Float} object that
- * represents a {@code float} with the same value as the
- * {@code float} represented by this object. For this
- * purpose, two {@code float} values are considered to be the
- * same if and only if the method {@link #floatToIntBits(float)}
- * returns the identical {@code int} value when applied to
- * each.
- *
- * <p>Note that in most cases, for two instances of class
- * {@code Float}, {@code f1} and {@code f2}, the value
- * of {@code f1.equals(f2)} is {@code true} if and only if
- *
- * <blockquote><pre>
- * f1.floatValue() == f2.floatValue()
- * </pre></blockquote>
- *
- * <p>also has the value {@code true}. However, there are two exceptions:
- * <ul>
- * <li>If {@code f1} and {@code f2} both represent
- * {@code Float.NaN}, then the {@code equals} method returns
- * {@code true}, even though {@code Float.NaN==Float.NaN}
- * has the value {@code false}.
- * <li>If {@code f1} represents {@code +0.0f} while
- * {@code f2} represents {@code -0.0f}, or vice
- * versa, the {@code equal} test has the value
- * {@code false}, even though {@code 0.0f==-0.0f}
- * has the value {@code true}.
- * </ul>
- *
- * This definition allows hash tables to operate properly.
- *
- * @param obj the object to be compared
- * @return {@code true} if the objects are the same;
- * {@code false} otherwise.
- * @see java.lang.Float#floatToIntBits(float)
- */
- @:overload public function equals(obj : Dynamic) : Bool;
-
- /**
- * Returns a representation of the specified floating-point value
- * according to the IEEE 754 floating-point "single format" bit
- * layout.
- *
- * <p>Bit 31 (the bit that is selected by the mask
- * {@code 0x80000000}) represents the sign of the floating-point
- * number.
- * Bits 30-23 (the bits that are selected by the mask
- * {@code 0x7f800000}) represent the exponent.
- * Bits 22-0 (the bits that are selected by the mask
- * {@code 0x007fffff}) represent the significand (sometimes called
- * the mantissa) of the floating-point number.
- *
- * <p>If the argument is positive infinity, the result is
- * {@code 0x7f800000}.
- *
- * <p>If the argument is negative infinity, the result is
- * {@code 0xff800000}.
- *
- * <p>If the argument is NaN, the result is {@code 0x7fc00000}.
- *
- * <p>In all cases, the result is an integer that, when given to the
- * {@link #intBitsToFloat(int)} method, will produce a floating-point
- * value the same as the argument to {@code floatToIntBits}
- * (except all NaN values are collapsed to a single
- * "canonical" NaN value).
- *
- * @param value a floating-point number.
- * @return the bits that represent the floating-point number.
- */
- @:overload public static function floatToIntBits(value : Single) : Int;
-
- /**
- * Returns a representation of the specified floating-point value
- * according to the IEEE 754 floating-point "single format" bit
- * layout, preserving Not-a-Number (NaN) values.
- *
- * <p>Bit 31 (the bit that is selected by the mask
- * {@code 0x80000000}) represents the sign of the floating-point
- * number.
- * Bits 30-23 (the bits that are selected by the mask
- * {@code 0x7f800000}) represent the exponent.
- * Bits 22-0 (the bits that are selected by the mask
- * {@code 0x007fffff}) represent the significand (sometimes called
- * the mantissa) of the floating-point number.
- *
- * <p>If the argument is positive infinity, the result is
- * {@code 0x7f800000}.
- *
- * <p>If the argument is negative infinity, the result is
- * {@code 0xff800000}.
- *
- * <p>If the argument is NaN, the result is the integer representing
- * the actual NaN value. Unlike the {@code floatToIntBits}
- * method, {@code floatToRawIntBits} does not collapse all the
- * bit patterns encoding a NaN to a single "canonical"
- * NaN value.
- *
- * <p>In all cases, the result is an integer that, when given to the
- * {@link #intBitsToFloat(int)} method, will produce a
- * floating-point value the same as the argument to
- * {@code floatToRawIntBits}.
- *
- * @param value a floating-point number.
- * @return the bits that represent the floating-point number.
- * @since 1.3
- */
- @:require(java3) @:overload @:native public static function floatToRawIntBits(value : Single) : Int;
-
- /**
- * Returns the {@code float} value corresponding to a given
- * bit representation.
- * The argument is considered to be a representation of a
- * floating-point value according to the IEEE 754 floating-point
- * "single format" bit layout.
- *
- * <p>If the argument is {@code 0x7f800000}, the result is positive
- * infinity.
- *
- * <p>If the argument is {@code 0xff800000}, the result is negative
- * infinity.
- *
- * <p>If the argument is any value in the range
- * {@code 0x7f800001} through {@code 0x7fffffff} or in
- * the range {@code 0xff800001} through
- * {@code 0xffffffff}, the result is a NaN. No IEEE 754
- * floating-point operation provided by Java can distinguish
- * between two NaN values of the same type with different bit
- * patterns. Distinct values of NaN are only distinguishable by
- * use of the {@code Float.floatToRawIntBits} method.
- *
- * <p>In all other cases, let <i>s</i>, <i>e</i>, and <i>m</i> be three
- * values that can be computed from the argument:
- *
- * <blockquote><pre>
- * int s = ((bits >> 31) == 0) ? 1 : -1;
- * int e = ((bits >> 23) & 0xff);
- * int m = (e == 0) ?
- * (bits & 0x7fffff) << 1 :
- * (bits & 0x7fffff) | 0x800000;
- * </pre></blockquote>
- *
- * Then the floating-point result equals the value of the mathematical
- * expression <i>s</i>·<i>m</i>·2<sup><i>e</i>-150</sup>.
- *
- * <p>Note that this method may not be able to return a
- * {@code float} NaN with exactly same bit pattern as the
- * {@code int} argument. IEEE 754 distinguishes between two
- * kinds of NaNs, quiet NaNs and <i>signaling NaNs</i>. The
- * differences between the two kinds of NaN are generally not
- * visible in Java. Arithmetic operations on signaling NaNs turn
- * them into quiet NaNs with a different, but often similar, bit
- * pattern. However, on some processors merely copying a
- * signaling NaN also performs that conversion. In particular,
- * copying a signaling NaN to return it to the calling method may
- * perform this conversion. So {@code intBitsToFloat} may
- * not be able to return a {@code float} with a signaling NaN
- * bit pattern. Consequently, for some {@code int} values,
- * {@code floatToRawIntBits(intBitsToFloat(start))} may
- * <i>not</i> equal {@code start}. Moreover, which
- * particular bit patterns represent signaling NaNs is platform
- * dependent; although all NaN bit patterns, quiet or signaling,
- * must be in the NaN range identified above.
- *
- * @param bits an integer.
- * @return the {@code float} floating-point value with the same bit
- * pattern.
- */
- @:overload @:native public static function intBitsToFloat(bits : Int) : Single;
-
- /**
- * Compares two {@code Float} objects numerically. There are
- * two ways in which comparisons performed by this method differ
- * from those performed by the Java language numerical comparison
- * operators ({@code <, <=, ==, >=, >}) when
- * applied to primitive {@code float} values:
- *
- * <ul><li>
- * {@code Float.NaN} is considered by this method to
- * be equal to itself and greater than all other
- * {@code float} values
- * (including {@code Float.POSITIVE_INFINITY}).
- * <li>
- * {@code 0.0f} is considered by this method to be greater
- * than {@code -0.0f}.
- * </ul>
- *
- * This ensures that the <i>natural ordering</i> of {@code Float}
- * objects imposed by this method is <i>consistent with equals</i>.
- *
- * @param anotherFloat the {@code Float} to be compared.
- * @return the value {@code 0} if {@code anotherFloat} is
- * numerically equal to this {@code Float}; a value
- * less than {@code 0} if this {@code Float}
- * is numerically less than {@code anotherFloat};
- * and a value greater than {@code 0} if this
- * {@code Float} is numerically greater than
- * {@code anotherFloat}.
- *
- * @since 1.2
- * @see Comparable#compareTo(Object)
- */
- @:require(java2) @:overload public function compareTo(anotherFloat : Float) : Int;
-
- /**
- * Compares the two specified {@code float} values. The sign
- * of the integer value returned is the same as that of the
- * integer that would be returned by the call:
- * <pre>
- * new Float(f1).compareTo(new Float(f2))
- * </pre>
- *
- * @param f1 the first {@code float} to compare.
- * @param f2 the second {@code float} to compare.
- * @return the value {@code 0} if {@code f1} is
- * numerically equal to {@code f2}; a value less than
- * {@code 0} if {@code f1} is numerically less than
- * {@code f2}; and a value greater than {@code 0}
- * if {@code f1} is numerically greater than
- * {@code f2}.
- * @since 1.4
- */
- @:require(java4) @:overload public static function compare(f1 : Single, f2 : Single) : Int;
-
-
- }
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