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ladybird/Userland/Libraries/LibM/math.h

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Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
2020-01-18 11:38:21 +03:00
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
Make bash-2.05b build with minimal changes. This is really neat. :^)
2018-11-17 02:11:08 +03:00
#pragma once
LibM: Add ilogb and logb
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#include <limits.h>
Make bash-2.05b build with minimal changes. This is really neat. :^)
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#include <sys/cdefs.h>
LibM: Fix Lagom build isnormal really messes up the build. Just remove it for now; it can be addressed in a seperate commit. Additionally, conditionally add `noexcept` to the math functions if we are in a C++ context.
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#if __cplusplus >= 201103L
Meta+LibHTTP through LibWeb: Make clang-format-10 clean
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# define NOEXCEPT noexcept
LibM: Fix Lagom build isnormal really messes up the build. Just remove it for now; it can be addressed in a seperate commit. Additionally, conditionally add `noexcept` to the math functions if we are in a C++ context.
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#else
Meta+LibHTTP through LibWeb: Make clang-format-10 clean
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# define NOEXCEPT
LibM: Fix Lagom build isnormal really messes up the build. Just remove it for now; it can be addressed in a seperate commit. Additionally, conditionally add `noexcept` to the math functions if we are in a C++ context.
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#endif
Make bash-2.05b build with minimal changes. This is really neat. :^)
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__BEGIN_DECLS
LibM: Define `math_errhandling` and associated macros
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#define MATH_ERRNO 1
#define MATH_ERREXCEPT 2
#define math_errhandling MATH_ERREXCEPT
Make bash-2.05b build with minimal changes. This is really neat. :^)
2018-11-17 02:11:08 +03:00
#define HUGE_VAL 1e10000
LibM: Add INFINITY macro
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#define INFINITY __builtin_huge_val()
LibM: Add NAN macro
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#define NAN __builtin_nan("")
LibM: Implement various trig functions Patch from Anonymous.
2019-09-29 22:04:08 +03:00
#define M_E 2.718281828459045
LibM: Add trigonometric approximations and misc mathematical functions
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#define M_PI 3.141592653589793
LibM: Evaluate math macros, add M_DEG2RAD and M_RAD2DEG
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#define M_PI_2 1.570796326794896
#define M_TAU 6.283185307179586
#define M_DEG2RAD 0.017453292519943
#define M_RAD2DEG 57.29577951308232
LibM: Implement various functions. Path from Anonymous.
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#define M_LN2 0.69314718055995
#define M_LN10 2.30258509299405
LibM: Add M_SQRT2 and M_SQRT1_2
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#define M_SQRT2 1.4142135623730951
#define M_SQRT1_2 0.7071067811865475
Make bash-2.05b build with minimal changes. This is really neat. :^)
2018-11-17 02:11:08 +03:00
LibM: Define some floating point classification macros This adds a few macros used to determine the category of a floating point number. This fixes a build error with the jq port due to the previously missing isnormal() macro. Co-authored-by: Lua MacDougall <luawhat@gmail.com>
2020-11-17 08:27:13 +03:00
#define FP_NAN 0
#define FP_INFINITE 1
#define FP_ZERO 2
#define FP_SUBNORMAL 3
#define FP_NORMAL 4
#define fpclassify(x) __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_ZERO, FP_SUBNORMAL, FP_ZERO, x)
#define signbit(x) __builtin_signbit(x)
#define isnan(x) __builtin_isnan(x)
#define isinf(x) __builtin_isinf_sign(x)
#define isfinite(x) __builtin_isfinite(x)
#define isnormal(x) __builtin_isnormal(x)
LibM: Define floating point comparsion macros
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#define isgreater(x, y) __builtin_isgreater((x), (y))
#define isgreaterequal(x, y) __builtin_isgreaterequal((x), (y))
#define isless(x, y) __builtin_isless((x), (y))
#define islessequal(x, y) __builtin_islessequal((x), (y))
#define islessgreater(x, y) __builtin_islessgreater((x), (y))
#define isunordered(x, y) __builtin_isunoredered((x), (y))
LibM: Define some floating point classification macros This adds a few macros used to determine the category of a floating point number. This fixes a build error with the jq port due to the previously missing isnormal() macro. Co-authored-by: Lua MacDougall <luawhat@gmail.com>
2020-11-17 08:27:13 +03:00
LibM: Add 'isnormal'
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#define DOUBLE_MAX ((double)0b0111111111101111111111111111111111111111111111111111111111111111)
#define DOUBLE_MIN ((double)0b0000000000010000000000000000000000000000000000000000000000000000)
LibM: Organise math.h so it is less of a wall of functions The categories are the same categories used by cppreference on its page for numeric functions.
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#define FP_ILOGB0 INT_MIN
#define FP_ILOGNAN INT_MAX
/* Basic floating point operations */
long double fabsl(long double) NOEXCEPT;
double fabs(double) NOEXCEPT;
float fabsf(float) NOEXCEPT;
long double fmodl(long double, long double) NOEXCEPT;
double fmod(double, double) NOEXCEPT;
float fmodf(float, float) NOEXCEPT;
LibM: Add nan{f, l}
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long double nanl(const char*) NOEXCEPT;
double nan(const char*) NOEXCEPT;
float nanf(const char*) NOEXCEPT;
LibM: Organise math.h so it is less of a wall of functions The categories are the same categories used by cppreference on its page for numeric functions.
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/* Exponential functions */
long double expl(long double) NOEXCEPT;
double exp(double) NOEXCEPT;
float expf(float) NOEXCEPT;
long double exp2l(long double) NOEXCEPT;
double exp2(double) NOEXCEPT;
float exp2f(float) NOEXCEPT;
long double expm1l(long double) NOEXCEPT;
double expm1(double) NOEXCEPT;
float expm1f(float) NOEXCEPT;
long double logl(long double) NOEXCEPT;
double log(double) NOEXCEPT;
float logf(float) NOEXCEPT;
double log2(double) NOEXCEPT;
float log2f(float) NOEXCEPT;
long double log2l(long double) NOEXCEPT;
long double log10l(long double) NOEXCEPT;
double log10(double) NOEXCEPT;
float log10f(float) NOEXCEPT;
long double log1pl(long double) NOEXCEPT;
double log1p(double) NOEXCEPT;
float log1pf(float) NOEXCEPT;
/* Power functions */
long double powl(long double x, long double y) NOEXCEPT;
double pow(double x, double y) NOEXCEPT;
float powf(float x, float y) NOEXCEPT;
long double sqrtl(long double) NOEXCEPT;
double sqrt(double) NOEXCEPT;
float sqrtf(float) NOEXCEPT;
long double cbrtl(long double) NOEXCEPT;
double cbrt(double) NOEXCEPT;
float cbrtf(float) NOEXCEPT;
long double hypotl(long double, long double) NOEXCEPT;
double hypot(double, double) NOEXCEPT;
float hypotf(float, float) NOEXCEPT;
/* Trigonometric functions */
long double sinl(long double) NOEXCEPT;
double sin(double) NOEXCEPT;
float sinf(float) NOEXCEPT;
long double cosl(long double) NOEXCEPT;
double cos(double) NOEXCEPT;
float cosf(float) NOEXCEPT;
long double tanl(long double) NOEXCEPT;
double tan(double) NOEXCEPT;
float tanf(float) NOEXCEPT;
LibM: Add missing float and long double function variants
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long double asinl(long double) NOEXCEPT;
LibM: Fix Lagom build isnormal really messes up the build. Just remove it for now; it can be addressed in a seperate commit. Additionally, conditionally add `noexcept` to the math functions if we are in a C++ context.
2020-07-24 04:32:46 +03:00
double asin(double) NOEXCEPT;
float asinf(float) NOEXCEPT;
LibM: Organise math.h so it is less of a wall of functions The categories are the same categories used by cppreference on its page for numeric functions.
2021-03-14 19:46:47 +03:00
long double acosl(long double) NOEXCEPT;
double acos(double) NOEXCEPT;
float acosf(float) NOEXCEPT;
LibM: Add missing float and long double function variants
2021-03-14 19:04:22 +03:00
long double atanl(long double) NOEXCEPT;
LibM: Fix Lagom build isnormal really messes up the build. Just remove it for now; it can be addressed in a seperate commit. Additionally, conditionally add `noexcept` to the math functions if we are in a C++ context.
2020-07-24 04:32:46 +03:00
double atan(double) NOEXCEPT;
float atanf(float) NOEXCEPT;
LibM: Add missing float and long double function variants
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long double atan2l(long double, long double) NOEXCEPT;
LibM: Fix Lagom build isnormal really messes up the build. Just remove it for now; it can be addressed in a seperate commit. Additionally, conditionally add `noexcept` to the math functions if we are in a C++ context.
2020-07-24 04:32:46 +03:00
double atan2(double, double) NOEXCEPT;
float atan2f(float, float) NOEXCEPT;
LibM: Organise math.h so it is less of a wall of functions The categories are the same categories used by cppreference on its page for numeric functions.
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/* Hyperbolic functions*/
LibM: Add missing float and long double function variants
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long double sinhl(long double) NOEXCEPT;
LibM: Fix Lagom build isnormal really messes up the build. Just remove it for now; it can be addressed in a seperate commit. Additionally, conditionally add `noexcept` to the math functions if we are in a C++ context.
2020-07-24 04:32:46 +03:00
double sinh(double) NOEXCEPT;
float sinhf(float) NOEXCEPT;
LibM: Organise math.h so it is less of a wall of functions The categories are the same categories used by cppreference on its page for numeric functions.
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long double coshl(long double) NOEXCEPT;
double cosh(double) NOEXCEPT;
float coshf(float) NOEXCEPT;
LibM: Add missing float and long double function variants
2021-03-14 19:04:22 +03:00
long double tanhl(long double) NOEXCEPT;
LibM: Fix Lagom build isnormal really messes up the build. Just remove it for now; it can be addressed in a seperate commit. Additionally, conditionally add `noexcept` to the math functions if we are in a C++ context.
2020-07-24 04:32:46 +03:00
double tanh(double) NOEXCEPT;
float tanhf(float) NOEXCEPT;
LibM: Organise math.h so it is less of a wall of functions The categories are the same categories used by cppreference on its page for numeric functions.
2021-03-14 19:46:47 +03:00
long double asinhl(long double) NOEXCEPT;
double asinh(double) NOEXCEPT;
float asinhf(float) NOEXCEPT;
long double acoshl(long double) NOEXCEPT;
double acosh(double) NOEXCEPT;
float acoshf(float) NOEXCEPT;
long double atanhl(long double) NOEXCEPT;
double atanh(double) NOEXCEPT;
float atanhf(float) NOEXCEPT;
/* Error and gamma functions */
long double erfl(long double) NOEXCEPT;
double erf(double) NOEXCEPT;
float erff(float) NOEXCEPT;
long double erfcl(long double) NOEXCEPT;
double erfc(double) NOEXCEPT;
float erfcf(float) NOEXCEPT;
double gamma(double) NOEXCEPT;
LibM: Add the gamma family of functions
2021-03-14 20:54:01 +03:00
long double tgammal(long double) NOEXCEPT;
double tgamma(double) NOEXCEPT;
float tgammaf(float) NOEXCEPT;
long double lgammal(long double) NOEXCEPT;
double lgamma(double) NOEXCEPT;
float lgammaf(float) NOEXCEPT;
long double lgammal_r(long double, int*) NOEXCEPT;
double lgamma_r(double, int*) NOEXCEPT;
float lgammaf_r(float, int*) NOEXCEPT;
extern int signgam;
LibM: Organise math.h so it is less of a wall of functions The categories are the same categories used by cppreference on its page for numeric functions.
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/* Nearest integer floating point operations */
long double ceill(long double) NOEXCEPT;
LibM: Fix Lagom build isnormal really messes up the build. Just remove it for now; it can be addressed in a seperate commit. Additionally, conditionally add `noexcept` to the math functions if we are in a C++ context.
2020-07-24 04:32:46 +03:00
double ceil(double) NOEXCEPT;
float ceilf(float) NOEXCEPT;
LibM: Organise math.h so it is less of a wall of functions The categories are the same categories used by cppreference on its page for numeric functions.
2021-03-14 19:46:47 +03:00
long double floorl(long double) NOEXCEPT;
LibM: Fix Lagom build isnormal really messes up the build. Just remove it for now; it can be addressed in a seperate commit. Additionally, conditionally add `noexcept` to the math functions if we are in a C++ context.
2020-07-24 04:32:46 +03:00
double floor(double) NOEXCEPT;
float floorf(float) NOEXCEPT;
LibM: Organise math.h so it is less of a wall of functions The categories are the same categories used by cppreference on its page for numeric functions.
2021-03-14 19:46:47 +03:00
long double truncl(long double) NOEXCEPT;
LibM: Improve accuracy of rounding related functions Patch from Anonymous.
2021-02-05 11:09:00 +03:00
double trunc(double) NOEXCEPT;
float truncf(float) NOEXCEPT;
LibM: Fix Lagom build isnormal really messes up the build. Just remove it for now; it can be addressed in a seperate commit. Additionally, conditionally add `noexcept` to the math functions if we are in a C++ context.
2020-07-24 04:32:46 +03:00
float roundf(float) NOEXCEPT;
LibM: Organise math.h so it is less of a wall of functions The categories are the same categories used by cppreference on its page for numeric functions.
2021-03-14 19:46:47 +03:00
double round(double) NOEXCEPT;
LibM: Implement more rounding functions This patch implements the entire rint family, while taking into account the current rounding mode, and implements ceil, round, trunc, and floor for types which they weren't before.
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long double roundl(long double) NOEXCEPT;
LibM: Implement the missing parts of the round family
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long lroundf(float) NOEXCEPT;
long lround(double) NOEXCEPT;
long lroundl(long double) NOEXCEPT;
long long llroundf(float) NOEXCEPT;
long long llround(double) NOEXCEPT;
long long llroundd(long double) NOEXCEPT;
LibM: Implement more rounding functions This patch implements the entire rint family, while taking into account the current rounding mode, and implements ceil, round, trunc, and floor for types which they weren't before.
2021-03-08 00:47:07 +03:00
float rintf(float) NOEXCEPT;
LibM: Organise math.h so it is less of a wall of functions The categories are the same categories used by cppreference on its page for numeric functions.
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double rint(double) NOEXCEPT;
LibM: Implement more rounding functions This patch implements the entire rint family, while taking into account the current rounding mode, and implements ceil, round, trunc, and floor for types which they weren't before.
2021-03-08 00:47:07 +03:00
long lrintl(long double) NOEXCEPT;
long lrint(double) NOEXCEPT;
long lrintf(float) NOEXCEPT;
long long llrintl(long double) NOEXCEPT;
long long llrint(double) NOEXCEPT;
long long llrintf(float) NOEXCEPT;
LibM: Organise math.h so it is less of a wall of functions The categories are the same categories used by cppreference on its page for numeric functions.
2021-03-14 19:46:47 +03:00
/* Floating point manipulation functions */
LibM: Add missing float and long double function variants
2021-03-14 19:04:22 +03:00
long double frexpl(long double, int* exp) NOEXCEPT;
LibM: Fix Lagom build isnormal really messes up the build. Just remove it for now; it can be addressed in a seperate commit. Additionally, conditionally add `noexcept` to the math functions if we are in a C++ context.
2020-07-24 04:32:46 +03:00
double frexp(double, int* exp) NOEXCEPT;
float frexpf(float, int* exp) NOEXCEPT;
LibM: Organise math.h so it is less of a wall of functions The categories are the same categories used by cppreference on its page for numeric functions.
2021-03-14 19:46:47 +03:00
double ldexp(double, int exp) NOEXCEPT;
float ldexpf(float, int exp) NOEXCEPT;
LibM: Add missing float and long double function variants
2021-03-14 19:04:22 +03:00
long double modfl(long double, long double*) NOEXCEPT;
LibM: Fix Lagom build isnormal really messes up the build. Just remove it for now; it can be addressed in a seperate commit. Additionally, conditionally add `noexcept` to the math functions if we are in a C++ context.
2020-07-24 04:32:46 +03:00
double modf(double, double*) NOEXCEPT;
float modff(float, float*) NOEXCEPT;
LibM: Organise math.h so it is less of a wall of functions The categories are the same categories used by cppreference on its page for numeric functions.
2021-03-14 19:46:47 +03:00
float scalbnf(float, int) NOEXCEPT;
double scalbn(double, int) NOEXCEPT;
long double scalbnl(long double, int) NOEXCEPT;
float scalbnlf(float, long) NOEXCEPT;
double scalbln(double, long) NOEXCEPT;
long double scalblnl(long double, long) NOEXCEPT;
LibM: Add ilogb and logb
2021-03-07 21:40:01 +03:00
int ilogbl(long double) NOEXCEPT;
int ilogb(double) NOEXCEPT;
int ilogbf(float) NOEXCEPT;
long double logbl(long double) NOEXCEPT;
double logb(double) NOEXCEPT;
float logbf(float) NOEXCEPT;
LibM: Add nextafter() and nexttoward() stubs Only thing missing for Python to build the _math module! :^)
2021-01-18 20:16:41 +03:00
double nextafter(double, double) NOEXCEPT;
float nextafterf(float, float) NOEXCEPT;
long double nextafterl(long double, long double) NOEXCEPT;
double nexttoward(double, long double) NOEXCEPT;
float nexttowardf(float, long double) NOEXCEPT;
long double nexttowardl(long double, long double) NOEXCEPT;
LibM: Implement copysign for float and long double
2021-03-08 00:14:46 +03:00
float copysignf(float x, float y) NOEXCEPT;
double copysign(double x, double y) NOEXCEPT;
long double copysignl(long double x, long double y) NOEXCEPT;
LibM: Add naive implementation of copysign()
2021-03-05 22:46:25 +03:00
Make bash-2.05b build with minimal changes. This is really neat. :^)
2018-11-17 02:11:08 +03:00
__END_DECLS
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