math.h File Reference

#include "_internal/config.h"

Go to the source code of this file.

Macros
#define	M_PI   3.14159265358979323846
#define	M_PI_2   1.57079632679489661923
#define	M_PI_4   0.78539816339744830962
#define	HUGE_VALF   (1.0f / 0.0f)
#define	HUGE_VAL   (1.0 / 0.0)
#define	HUGE_VALL   (1.0L / 0.0L)
#define	INFINITY   (1.0f / 0.0f)
#define	NAN   (-(0.0f / 0.0f))
#define	FP_ILOGB0   INT_MIN
#define	FP_ILOGBNAN   INT_MAX
#define	MATH_ERRNO   1
#define	MATH_ERREXCEPT   2
#define	math_errhandling   (MATH_ERRNO)
#define	isfinite(x)   __builtin_isfinite(x)
#define	isinf(x)   __builtin_isinf(x)
#define	isnan(x)   __builtin_isnan(x)
#define	isnormal(x)   __builtin_isnormal(x)
#define	signbit(x)   __builtin_signbit(x)
#define	fpclassify(x)   __builtin_fpclassify(FP_INFINITE, FP_NAN, FP_NORMAL, FP_SUBNORMAL, FP_ZERO, x)
#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_isunordered(x, y)
#define	FP_INFINITE   1
#define	FP_NAN   2
#define	FP_NORMAL   3
#define	FP_SUBNORMAL   4
#define	FP_ZERO   5

Functions
double	acos (double x)
float	acosf (float x)
long double	acosl (long double x)
double	asin (double x)
float	asinf (float x)
long double	asinl (long double x)
double	atan (double x)
float	atanf (float x)
long double	atanl (long double x)
double	atan2 (double y, double x)
float	atan2f (float y, float x)
long double	atan2l (long double y, long double x)
double	cos (double x)
float	cosf (float x)
long double	cosl (long double x)
double	sin (double x)
float	sinf (float x)
long double	sinl (long double x)
double	tan (double x)
float	tanf (float x)
long double	tanl (long double x)
double	acosh (double x)
float	acoshf (float x)
long double	acoshl (long double x)
double	asinh (double x)
float	asinhf (float x)
long double	asinhl (long double x)
double	atanh (double x)
float	atanhf (float x)
long double	atanhl (long double x)
double	cosh (double x)
float	coshf (float x)
long double	coshl (long double x)
double	sinh (double x)
float	sinhf (float x)
long double	sinhl (long double x)
double	tanh (double x)
float	tanhf (float x)
long double	tanhl (long double x)
double	exp (double x)
float	expf (float x)
long double	expl (long double x)
double	exp2 (double x)
float	exp2f (float x)
long double	exp2l (long double x)
double	expm1 (double x)
float	expm1f (float x)
long double	expm1l (long double x)
double	frexp (double value, int *exp)
float	frexpf (float value, int *exp)
long double	frexpl (long double value, int *exp)
double	ilogb (double x)
float	ilogbf (float x)
long double	ilogbl (long double x)
double	ldexp (double x, int exp)
float	ldexpf (float x, int exp)
long double	ldexpl (long double x, int exp)
double	log (double x)
float	logf (float x)
long double	logl (long double x)
double	log10 (double x)
float	log10f (float x)
long double	log10l (long double x)
double	log1p (double x)
float	log1pf (float x)
long double	log1pl (long double x)
double	log2 (double x)
float	log2f (float x)
long double	log2l (long double x)
double	logb (double x)
float	logbf (float x)
long double	logbl (long double x)
double	modf (double value, double *iptr)
float	modff (float value, float *iptr)
long double	modfl (long double value, long double *iptr)
double	scalbn (double x, int n)
float	scalbnf (float x, int n)
long double	scalbnl (long double x, int n)
double	scalbln (double x, long int *n)
float	scalblnf (float x, long int *n)
long double	scalblnl (long double x, long int *n)
double	cbrt (double x)
float	cbrtf (float x)
long double	cbrtl (long double x)
double	fabs (double x)
float	fabsf (float x)
long double	fabsl (long double x)
double	hypot (double x, double y)
float	hypotf (float x, float y)
long double	hypotl (long double x, long double y)
double	pow (double x, double y)
float	powf (float x, float y)
long double	powl (long double x, long double y)
double	sqrt (double x)
float	sqrtf (float x)
long double	sqrtl (long double x)
double	erf (double x)
float	erff (float x)
long double	erfl (long double x)
double	erfc (double x)
float	erfcf (float x)
long double	erfcl (long double x)
double	lgamma (double x)
float	lgammaf (float x)
long double	lgammal (long double x)
double	tgamma (double x)
float	tgammaf (float x)
long double	tgammal (long double x)
double	ceil (double x)
float	ceilf (float x)
long double	ceill (long double x)
double	floor (double x)
float	floorf (float x)
long double	floorl (long double x)
double	nearbyint (double x)
float	nearbyintf (float x)
long double	nearbyintl (long double x)
double	rint (double x)
float	rintf (float x)
long double	rintl (long double x)
long int	lrint (double x)
long int	lrintf (float x)
long int	lrintl (long double x)
long long int	llrint (double x)
long long int	llrintf (float x)
long long int	llrintl (long double x)
double	round (double x)
float	roundf (float x)
long double	roundl (long double x)
long int	lround (double x)
long int	lroundf (float x)
long int	lroundl (long double x)
long long int	llround (double x)
long long int	llroundf (float x)
long long int	llroundl (long double x)
double	trunc (double x)
float	truncf (float x)
long double	truncl (long double x)
double	fmod (double x, double y)
float	fmodf (float x, float y)
long double	fmodl (long double x, long double y)
double	remainder (double x, double y)
float	remainderf (float x, float y)
long double	remainderl (long double x, long double y)
double	rmquo (double x, double y)
float	rmquof (float x, float y)
long double	rmquol (long double x, long double y)
double	copysign (double x, double y)
float	copysignf (float x, float y)
long double	copysignl (long double x, long double y)
double	nan (const char *tagp)
float	nanf (const char *tagp)
long double	nanl (const char *tagp)
double	nextafter (double x, double y)
float	nextafterf (float x, float y)
long double	nextafterl (long double x, long double y)
double	nexttoward (double x, double y)
float	nexttowardf (float x, float y)
long double	nexttowardl (long double x, long double y)
double	fdim (double x, double y)
float	fdimf (float x, float y)
long double	fdiml (long double x, long double y)
double	fmax (double x, double y)
float	fmaxf (float x, float y)
long double	fmaxl (long double x, long double y)
double	fmin (double x, double y)
float	fminf (float x, float y)
long double	fminl (long double x, long double y)
double	fma (double x, double y, double z)
float	fmaf (float x, float y, float z)
long double	fmal (long double x, long double y, long double z)

Macro Definition Documentation

FP_ILOGB0

#define FP_ILOGB0   INT_MIN

Definition at line 26 of file math.h.

FP_ILOGBNAN

#define FP_ILOGBNAN   INT_MAX

Definition at line 27 of file math.h.

FP_INFINITE

#define FP_INFINITE   1

Definition at line 59 of file math.h.

FP_NAN

#define FP_NAN   2

Definition at line 60 of file math.h.

FP_NORMAL

#define FP_NORMAL   3

Definition at line 61 of file math.h.

FP_SUBNORMAL

#define FP_SUBNORMAL   4

Definition at line 62 of file math.h.

FP_ZERO

#define FP_ZERO   5

Definition at line 63 of file math.h.

fpclassify

#define fpclassify

(

x

)

__builtin_fpclassify(FP_INFINITE, FP_NAN, FP_NORMAL, FP_SUBNORMAL, FP_ZERO, x)

Definition at line 45 of file math.h.

HUGE_VAL

#define HUGE_VAL   (1.0 / 0.0)

Definition at line 16 of file math.h.

HUGE_VALF

#define HUGE_VALF   (1.0f / 0.0f)

Definition at line 15 of file math.h.

HUGE_VALL

#define HUGE_VALL   (1.0L / 0.0L)

Definition at line 17 of file math.h.

INFINITY

#define INFINITY   (1.0f / 0.0f)

Definition at line 19 of file math.h.

isfinite

#define isfinite

(

x

)

__builtin_isfinite(x)

Definition at line 35 of file math.h.

isgreater

#define isgreater	(		x,
			y
	)		__builtin_isgreater(x, y)

Definition at line 47 of file math.h.

isgreaterequal

#define isgreaterequal	(		x,
			y
	)		__builtin_isgreaterequal(x, y)

Definition at line 49 of file math.h.

isinf

#define isinf

(

x

)

__builtin_isinf(x)

Definition at line 37 of file math.h.

isless

#define isless	(		x,
			y
	)		__builtin_isless(x, y)

Definition at line 51 of file math.h.

islessequal

#define islessequal	(		x,
			y
	)		__builtin_islessequal(x, y)

Definition at line 53 of file math.h.

islessgreater

#define islessgreater	(		x,
			y
	)		__builtin_islessgreater(x, y)

Definition at line 55 of file math.h.

isnan

#define isnan

(

x

)

__builtin_isnan(x)

Definition at line 39 of file math.h.

isnormal

#define isnormal

(

x

)

__builtin_isnormal(x)

Definition at line 41 of file math.h.

isunordered

#define isunordered	(		x,
			y
	)		__builtin_isunordered(x, y)

Definition at line 57 of file math.h.

M_PI

#define M_PI   3.14159265358979323846

Definition at line 11 of file math.h.

M_PI_2

#define M_PI_2   1.57079632679489661923

Definition at line 12 of file math.h.

M_PI_4

#define M_PI_4   0.78539816339744830962

Definition at line 13 of file math.h.

MATH_ERREXCEPT

#define MATH_ERREXCEPT   2

Definition at line 30 of file math.h.

math_errhandling

#define math_errhandling   (MATH_ERRNO)

Definition at line 33 of file math.h.

MATH_ERRNO

#define MATH_ERRNO   1

Definition at line 29 of file math.h.

NAN

#define NAN   (-(0.0f / 0.0f))

Definition at line 20 of file math.h.

signbit

#define signbit

(

x

)

__builtin_signbit(x)

Definition at line 43 of file math.h.

Function Documentation

acos()

double acos

(

double

x

)

acosf()

float acosf

(

float

x

)

acosh()

double acosh

(

double

x

)

acoshf()

float acoshf

(

float

x

)

acoshl()

long double acoshl

(

long double

x

)

acosl()

long double acosl

(

long double

x

)

asin()

double asin

(

double

x

)

asinf()

float asinf

(

float

x

)

asinh()

double asinh

(

double

x

)

asinhf()

float asinhf

(

float

x

)

asinhl()

long double asinhl

(

long double

x

)

asinl()

long double asinl

(

long double

x

)

atan()

double atan

(

double

x

)

Definition at line 5 of file atan.c.

References fabs(), isinf, isnan, M_PI_2, NAN, and x.

Referenced by atan2().

atan2()

double atan2	(	double	y,
		double	x
	)

Definition at line 4 of file atan2.c.

References atan(), fabs(), isinf, isnan, M_PI, M_PI_2, M_PI_4, NAN, x, and y.

Referenced by draw_line().

atan2f()

float atan2f	(	float	y,
		float	x
	)

atan2l()

long double atan2l	(	long double	y,
		long double	x
	)

atanf()

float atanf

(

float

x

)

atanh()

double atanh

(

double

x

)

atanhf()

float atanhf

(

float

x

)

atanhl()

long double atanhl

(

long double

x

)

atanl()

long double atanl

(

long double

x

)

cbrt()

double cbrt

(

double

x

)

cbrtf()

float cbrtf

(

float

x

)

cbrtl()

long double cbrtl

(

long double

x

)

ceil()

double ceil

(

double

x

)

Definition at line 5 of file ceil.c.

References fabs(), INT64_MAX, isinf, isnan, NAN, and x.

Referenced by modf(), and trunc().

ceilf()

float ceilf

(

float

x

)

ceill()

long double ceill

(

long double

x

)

copysign()

double copysign	(	double	x,
		double	y
	)

copysignf()

float copysignf	(	float	x,
		float	y
	)

copysignl()

long double copysignl	(	long double	x,
		long double	y
	)

cos()

double cos

(

double

x

)

Definition at line 6 of file cos.c.

References EDOM, errno, isinf, isnan, NAN, and x.

Referenced by draw_line(), and polygon_rotate().

cosf()

float cosf

(

float

x

)

cosh()

double cosh

(

double

x

)

coshf()

float coshf

(

float

x

)

coshl()

long double coshl

(

long double

x

)

cosl()

long double cosl

(

long double

x

)

erf()

double erf

(

double

x

)

erfc()

double erfc

(

double

x

)

erfcf()

float erfcf

(

float

x

)

erfcl()

long double erfcl

(

long double

x

)

erff()

float erff

(

float

x

)

erfl()

long double erfl

(

long double

x

)

exp()

double exp

(

double

x

)

Referenced by _print_double(), _print_fp(), _print_hexa(), and _print_ldouble().

exp2()

double exp2

(

double

x

)

exp2f()

float exp2f

(

float

x

)

exp2l()

long double exp2l

(

long double

x

)

expf()

float expf

(

float

x

)

expl()

long double expl

(

long double

x

)

expm1()

double expm1

(

double

x

)

expm1f()

float expm1f

(

float

x

)

expm1l()

long double expm1l

(

long double

x

)

fabs()

double fabs

(

double

x

)

Definition at line 3 of file fabs.c.

Referenced by atan(), atan2(), ceil(), floor(), and round().

fabsf()

float fabsf

(

float

x

)

fabsl()

long double fabsl

(

long double

x

)

fdim()

double fdim	(	double	x,
		double	y
	)

fdimf()

float fdimf	(	float	x,
		float	y
	)

fdiml()

long double fdiml	(	long double	x,
		long double	y
	)

floor()

double floor

(

double

x

)

Definition at line 4 of file floor.c.

References fabs(), INT64_MAX, isinf, isnan, NAN, and x.

Referenced by modf(), and trunc().

floorf()

float floorf

(

float

x

)

floorl()

long double floorl

(

long double

x

)

fma()

double fma	(	double	x,
		double	y,
		double	z
	)

fmaf()

float fmaf	(	float	x,
		float	y,
		float	z
	)

fmal()

long double fmal	(	long double	x,
		long double	y,
		long double	z
	)

fmax()

double fmax	(	double	x,
		double	y
	)

fmaxf()

float fmaxf	(	float	x,
		float	y
	)

fmaxl()

long double fmaxl	(	long double	x,
		long double	y
	)

fmin()

double fmin	(	double	x,
		double	y
	)

fminf()

float fminf	(	float	x,
		float	y
	)

fminl()

long double fminl	(	long double	x,
		long double	y
	)

fmod()

double fmod	(	double	x,
		double	y
	)

Definition at line 5 of file fmod.c.

References EDOM, errno, isinf, isnan, NAN, trunc(), x, and y.

Referenced by round().

fmodf()

float fmodf	(	float	x,
		float	y
	)

fmodl()

long double fmodl	(	long double	x,
		long double	y
	)

frexp()

double frexp	(	double	value,
		int *	exp
	)

frexpf()

float frexpf	(	float	value,
		int *	exp
	)

frexpl()

long double frexpl	(	long double	value,
		int *	exp
	)

hypot()

double hypot	(	double	x,
		double	y
	)

hypotf()

float hypotf	(	float	x,
		float	y
	)

hypotl()

long double hypotl	(	long double	x,
		long double	y
	)

ilogb()

double ilogb

(

double

x

)

ilogbf()

float ilogbf

(

float

x

)

ilogbl()

long double ilogbl

(

long double

x

)

ldexp()

double ldexp	(	double	x,
		int	exp
	)

ldexpf()

float ldexpf	(	float	x,
		int	exp
	)

ldexpl()

long double ldexpl	(	long double	x,
		int	exp
	)

lgamma()

double lgamma

(

double

x

)

lgammaf()

float lgammaf

(

float

x

)

lgammal()

long double lgammal

(

long double

x

)

llrint()

long long int llrint

(

double

x

)

llrintf()

long long int llrintf

(

float

x

)

llrintl()

long long int llrintl

(

long double

x

)

llround()

long long int llround

(

double

x

)

llroundf()

long long int llroundf

(

float

x

)

llroundl()

long long int llroundl

(

long double

x

)

log()

double log

(

double

x

)

log10()

double log10

(

double

x

)

log10f()

float log10f

(

float

x

)

log10l()

long double log10l

(

long double

x

)

log1p()

double log1p

(

double

x

)

log1pf()

float log1pf

(

float

x

)

log1pl()

long double log1pl

(

long double

x

)

log2()

double log2

(

double

x

)

log2f()

float log2f

(

float

x

)

log2l()

long double log2l

(

long double

x

)

logb()

double logb

(

double

x

)

logbf()

float logbf

(

float

x

)

logbl()

long double logbl

(

long double

x

)

logf()

float logf

(

float

x

)

logl()

long double logl

(

long double

x

)

lrint()

long int lrint

(

double

x

)

lrintf()

long int lrintf

(

float

x

)

lrintl()

long int lrintl

(

long double

x

)

lround()

long int lround

(

double

x

)

lroundf()

long int lroundf

(

float

x

)

lroundl()

long int lroundl

(

long double

x

)

modf()

double modf	(	double	value,
		double *	iptr
	)

Definition at line 5 of file modf.c.

References ceil(), floor(), INFINITY, isinf, isnan, NAN, and x.

Referenced by round().

modff()

float modff	(	float	value,
		float *	iptr
	)

modfl()

long double modfl	(	long double	value,
		long double *	iptr
	)

nan()

double nan

(

const char *

tagp

)

nanf()

float nanf

(

const char *

tagp

)

nanl()

long double nanl

(

const char *

tagp

)

nearbyint()

double nearbyint

(

double

x

)

nearbyintf()

float nearbyintf

(

float

x

)

nearbyintl()

long double nearbyintl

(

long double

x

)

nextafter()

double nextafter	(	double	x,
		double	y
	)

nextafterf()

float nextafterf	(	float	x,
		float	y
	)

nextafterl()

long double nextafterl	(	long double	x,
		long double	y
	)

nexttoward()

double nexttoward	(	double	x,
		double	y
	)

nexttowardf()

float nexttowardf	(	float	x,
		float	y
	)

nexttowardl()

long double nexttowardl	(	long double	x,
		long double	y
	)

pow()

double pow	(	double	x,
		double	y
	)

powf()

float powf	(	float	x,
		float	y
	)

powl()

long double powl	(	long double	x,
		long double	y
	)

remainder()

double remainder	(	double	x,
		double	y
	)

Referenced by _heap_block_split(), lltoa(), and realloc().

remainderf()

float remainderf	(	float	x,
		float	y
	)

remainderl()

long double remainderl	(	long double	x,
		long double	y
	)

rint()

double rint

(

double

x

)

rintf()

float rintf

(

float

x

)

rintl()

long double rintl

(

long double

x

)

rmquo()

double rmquo	(	double	x,
		double	y
	)

rmquof()

float rmquof	(	float	x,
		float	y
	)

rmquol()

long double rmquol	(	long double	x,
		long double	y
	)

round()

double round

(

double

x

)

Definition at line 4 of file round.c.

References fabs(), fmod(), isinf, isnan, modf(), NAN, and x.

Referenced by polygon_rotate().

roundf()

float roundf

(

float

x

)

roundl()

long double roundl

(

long double

x

)

scalbln()

double scalbln	(	double	x,
		long int *	n
	)

scalblnf()

float scalblnf	(	float	x,
		long int *	n
	)

scalblnl()

long double scalblnl	(	long double	x,
		long int *	n
	)

scalbn()

double scalbn	(	double	x,
		int	n
	)

scalbnf()

float scalbnf	(	float	x,
		int	n
	)

scalbnl()

long double scalbnl	(	long double	x,
		int	n
	)

sin()

double sin

(

double

x

)

Definition at line 6 of file sin.c.

References EDOM, errno, isinf, isnan, NAN, and x.

Referenced by draw_line(), and polygon_rotate().

sinf()

float sinf

(

float

x

)

sinh()

double sinh

(

double

x

)

sinhf()

float sinhf

(

float

x

)

sinhl()

long double sinhl

(

long double

x

)

sinl()

long double sinl

(

long double

x

)

sqrt()

double sqrt

(

double

x

)

sqrtf()

float sqrtf

(

float

x

)

sqrtl()

long double sqrtl

(

long double

x

)

tan()

double tan

(

double

x

)

tanf()

float tanf

(

float

x

)

tanh()

double tanh

(

double

x

)

tanhf()

float tanhf

(

float

x

)

tanhl()

long double tanhl

(

long double

x

)

tanl()

long double tanl

(

long double

x

)

tgamma()

double tgamma

(

double

x

)

tgammaf()

float tgammaf

(

float

x

)

tgammal()

long double tgammal

(

long double

x

)

trunc()

double trunc

(

double

x

)

Definition at line 3 of file trunc.c.

References ceil(), floor(), isinf, isnan, NAN, and x.

Referenced by fmod().

truncf()

float truncf

(

float

x

)

truncl()

long double truncl

(

long double

x

)