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Kha/Tools/linux_arm64/std/Math.hx
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309
Kha/Tools/linux_arm64/std/Math.hx
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/*
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* Copyright (C)2005-2019 Haxe Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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/**
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This class defines mathematical functions and constants.
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@see https://haxe.org/manual/std-math.html
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**/
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#if cpp
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@:include("hxMath.h")
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#end
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@:pure
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extern class Math {
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/**
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Represents the ratio of the circumference of a circle to its diameter,
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specified by the constant, π. `PI` is approximately `3.141592653589793`.
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**/
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static var PI(default, null):Float;
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/**
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A special `Float` constant which denotes negative infinity.
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For example, this is the result of `-1.0 / 0.0`.
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Operations with `NEGATIVE_INFINITY` as an operand may result in
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`NEGATIVE_INFINITY`, `POSITIVE_INFINITY` or `NaN`.
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If this constant is converted to an `Int`, e.g. through `Std.int()`, the
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result is unspecified.
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**/
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static var NEGATIVE_INFINITY(default, null):Float;
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/**
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A special `Float` constant which denotes positive infinity.
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For example, this is the result of `1.0 / 0.0`.
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Operations with `POSITIVE_INFINITY` as an operand may result in
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`NEGATIVE_INFINITY`, `POSITIVE_INFINITY` or `NaN`.
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If this constant is converted to an `Int`, e.g. through `Std.int()`, the
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result is unspecified.
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**/
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static var POSITIVE_INFINITY(default, null):Float;
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/**
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A special `Float` constant which denotes an invalid number.
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`NaN` stands for "Not a Number". It occurs when a mathematically incorrect
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operation is executed, such as taking the square root of a negative
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number: `Math.sqrt(-1)`.
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All further operations with `NaN` as an operand will result in `NaN`.
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If this constant is converted to an `Int`, e.g. through `Std.int()`, the
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result is unspecified.
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In order to test if a value is `NaN`, you should use `Math.isNaN()` function.
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**/
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static var NaN(default, null):Float;
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/**
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Returns the absolute value of `v`.
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- If `v` is positive or `0`, the result is unchanged. Otherwise the result is `-v`.
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- If `v` is `NEGATIVE_INFINITY` or `POSITIVE_INFINITY`, the result is `POSITIVE_INFINITY`.
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- If `v` is `NaN`, the result is `NaN`.
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**/
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static function abs(v:Float):Float;
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/**
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Returns the smaller of values `a` and `b`.
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- If `a` or `b` are `NaN`, the result is `NaN`.
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- If `a` or `b` are `NEGATIVE_INFINITY`, the result is `NEGATIVE_INFINITY`.
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- If `a` and `b` are `POSITIVE_INFINITY`, the result is `POSITIVE_INFINITY`.
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**/
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static function min(a:Float, b:Float):Float;
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/**
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Returns the greater of values `a` and `b`.
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- If `a` or `b` are `NaN`, the result is `NaN`.
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- If `a` or `b` are `POSITIVE_INFINITY`, the result is `POSITIVE_INFINITY`.
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- If `a` and `b` are `NEGATIVE_INFINITY`, the result is `NEGATIVE_INFINITY`.
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**/
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static function max(a:Float, b:Float):Float;
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/**
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Returns the trigonometric sine of the specified angle `v`, in radians.
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If `v` is `NaN` or infinite, the result is `NaN`.
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**/
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static function sin(v:Float):Float;
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/**
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Returns the trigonometric cosine of the specified angle `v`, in radians.
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If `v` is `NaN` or infinite, the result is `NaN`.
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**/
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static function cos(v:Float):Float;
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/**
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Returns the trigonometric tangent of the specified angle `v`, in radians.
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If `v` is `NaN` or infinite, the result is `NaN`.
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**/
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static function tan(v:Float):Float;
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/**
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Returns the trigonometric arc of the specified angle `v`, in radians.
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If `v` is `NaN` or infinite, the result is `NaN`.
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**/
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static function asin(v:Float):Float;
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/**
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Returns the trigonometric arc cosine of the specified angle `v`,
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in radians.
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If `v` is `NaN` or infinite, the result is `NaN`.
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**/
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static function acos(v:Float):Float;
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/**
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Returns the trigonometric arc tangent of the specified angle `v`,
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in radians.
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If `v` is `NaN` or infinite, the result is `NaN`.
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**/
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static function atan(v:Float):Float;
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/**
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Returns the trigonometric arc tangent whose tangent is the quotient of
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two specified numbers, in radians.
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If parameter `x` or `y` is `NaN`, `NEGATIVE_INFINITY` or `POSITIVE_INFINITY`,
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the result is `NaN`.
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**/
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static function atan2(y:Float, x:Float):Float;
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/**
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Returns Euler's number, raised to the power of `v`.
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`exp(1.0)` is approximately `2.718281828459`.
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- If `v` is `POSITIVE_INFINITY`, the result is `POSITIVE_INFINITY`.
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- If `v` is `NEGATIVE_INFINITY`, the result is `0.0`.
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- If `v` is `NaN`, the result is `NaN`.
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**/
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static function exp(v:Float):Float;
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/**
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Returns the natural logarithm of `v`.
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This is the mathematical inverse operation of exp,
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i.e. `log(exp(v)) == v` always holds.
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- If `v` is negative (including `NEGATIVE_INFINITY`) or `NaN`, the result is `NaN`.
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- If `v` is `POSITIVE_INFINITY`, the result is `POSITIVE_INFINITY`.
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- If `v` is `0.0`, the result is `NEGATIVE_INFINITY`.
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**/
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static function log(v:Float):Float;
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/**
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Returns a specified base `v` raised to the specified power `exp`.
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**/
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static function pow(v:Float, exp:Float):Float;
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/**
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Returns the square root of `v`.
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- If `v` is negative (including `NEGATIVE_INFINITY`) or `NaN`, the result is `NaN`.
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- If `v` is `POSITIVE_INFINITY`, the result is `POSITIVE_INFINITY`.
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- If `v` is `0.0`, the result is `0.0`.
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**/
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static function sqrt(v:Float):Float;
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/**
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Rounds `v` to the nearest integer value.
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Ties are rounded up, so that `0.5` becomes `1` and `-0.5` becomes `0`.
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If `v` is outside of the signed `Int32` range, or is `NaN`, `NEGATIVE_INFINITY`
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or `POSITIVE_INFINITY`, the result is unspecified.
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**/
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static function round(v:Float):Int;
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/**
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Returns the largest integer value that is not greater than `v`.
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If `v` is outside of the signed `Int32` range, or is `NaN`, `NEGATIVE_INFINITY`
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or `POSITIVE_INFINITY`, the result is unspecified.
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**/
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static function floor(v:Float):Int;
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/**
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Returns the smallest integer value that is not less than `v`.
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If `v` is outside of the signed `Int32` range, or is `NaN`, `NEGATIVE_INFINITY`
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or `POSITIVE_INFINITY`, the result is unspecified.
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**/
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static function ceil(v:Float):Int;
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/**
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Returns a pseudo-random number which is greater than or equal to `0.0`,
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and less than `1.0`.
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**/
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static function random():Float;
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#if (flash || cpp || eval)
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/**
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Returns the largest integer value that is not greater than `v`, as a `Float`.
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If `v` is is `NaN`, `NEGATIVE_INFINITY` or `POSITIVE_INFINITY`,
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the result is unspecified.
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**/
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static function ffloor(v:Float):Float;
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/**
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Returns the smallest integer value that is not less than `v`, as a `Float`.
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If `v` is is `NaN`, `NEGATIVE_INFINITY` or `POSITIVE_INFINITY`,
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the result is unspecified.
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**/
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static function fceil(v:Float):Float;
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/**
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Rounds `v` to the nearest integer value, as a Float.
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Ties are rounded up, so that `0.5` becomes `1` and `-0.5` becomes `0`.
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If `v` is is `NaN`, `NEGATIVE_INFINITY` or `POSITIVE_INFINITY`,
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the result is unspecified.
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**/
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static function fround(v:Float):Float;
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#else
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static inline function ffloor(v:Float):Float {
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return floor(v);
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}
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static inline function fceil(v:Float):Float {
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return ceil(v);
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}
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static inline function fround(v:Float):Float {
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return round(v);
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}
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#end
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/**
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Tells if `f` is a finite number.
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If `f` is `POSITIVE_INFINITY`, `NEGATIVE_INFINITY` or `NaN`, the result
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is `false`, otherwise the result is `true`.
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**/
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static function isFinite(f:Float):Bool;
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/**
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Tells if `f` is not a valid number.
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If `f` is `NaN`, the result is `true`, otherwise the result is `false`.
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In particular, both `POSITIVE_INFINITY` and `NEGATIVE_INFINITY` are
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not considered `NaN`.
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**/
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static function isNaN(f:Float):Bool;
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#if !eval
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private static function __init__():Void
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untyped {
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#if flash
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NaN = __global__["Number"].NaN;
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NEGATIVE_INFINITY = __global__["Number"].NEGATIVE_INFINITY;
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POSITIVE_INFINITY = __global__["Number"].POSITIVE_INFINITY;
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#else
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// TODO: Abandoned code block? Js has its own _std/Math.hx
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Math.__name__ = ["Math"];
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Math.NaN = Number["NaN"];
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Math.NEGATIVE_INFINITY = Number["NEGATIVE_INFINITY"];
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Math.POSITIVE_INFINITY = Number["POSITIVE_INFINITY"];
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#end
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Math.isFinite = function(i) {
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return #if flash __global__["isFinite"](i); #else false; #end
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};
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Math.isNaN = function(i) {
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return #if flash __global__["isNaN"](i); #else false; #end
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};
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}
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#end
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}
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