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Diffstat (limited to 'include/math.h')
| -rw-r--r-- | include/math.h | 497 |
1 files changed, 497 insertions, 0 deletions
diff --git a/include/math.h b/include/math.h new file mode 100644 index 0000000..e6dd268 --- /dev/null +++ b/include/math.h @@ -0,0 +1,497 @@ +/* $OpenBSD: math.h,v 1.36 2018/03/10 20:52:58 kettenis Exp $ */ +/* + * ==================================================== + * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. + * + * Developed at SunPro, a Sun Microsystems, Inc. business. + * Permission to use, copy, modify, and distribute this + * software is freely granted, provided that this notice + * is preserved. + * ==================================================== + */ + +/* + * from: @(#)fdlibm.h 5.1 93/09/24 + */ + +#ifndef _MATH_H_ +#define _MATH_H_ + +#include <sys/_types.h> +#include <sys/limits.h> + +__BEGIN_DECLS +/* + * ANSI/POSIX + */ +extern char __infinity[]; +#if __GNUC_PREREQ__(3, 3) +#define HUGE_VAL __builtin_huge_val() +#else /* __GNUC_PREREQ__(3, 3) */ +#define HUGE_VAL (*(double *)(void *)__infinity) +#endif /* __GNUC_PREREQ__(3, 3) */ + +/* + * C99 + */ +#if __ISO_C_VISIBLE >= 1999 +typedef __double_t double_t; +typedef __float_t float_t; + +#if __GNUC_PREREQ__(3, 3) +#define HUGE_VALF __builtin_huge_valf() +#define HUGE_VALL __builtin_huge_vall() +#define INFINITY __builtin_inff() +#define NAN __builtin_nanf("") +#else /* __GNUC_PREREQ__(3, 3) */ +#define HUGE_VALF ((float)HUGE_VAL) +#define HUGE_VALL ((long double)HUGE_VAL) +#define INFINITY HUGE_VALF +extern char __nan[]; +#define NAN (*(float *)(void *)__nan) +#endif /* __GNUC_PREREQ__(3, 3) */ + +#define FP_INFINITE 0x01 +#define FP_NAN 0x02 +#define FP_NORMAL 0x04 +#define FP_SUBNORMAL 0x08 +#define FP_ZERO 0x10 + +#define FP_ILOGB0 (-INT_MAX) +#define FP_ILOGBNAN INT_MAX + +#ifdef __FP_FAST_FMA +#define FP_FAST_FMA 1 +#endif /* __FP_FAST_FMA */ + +#ifdef __FP_FAST_FMAF +#define FP_FAST_FMAF 1 +#endif /* __FP_FAST_FMAF */ + +#ifdef __FP_FAST_FMAL +#define FP_FAST_FMAL 1 +#endif /* __FP_FAST_FMAL */ + +#define MATH_ERRNO 1 +#define MATH_ERREXCEPT 2 +#define math_errhandling MATH_ERREXCEPT + +#define fpclassify(x) \ + ((sizeof (x) == sizeof (float)) ? \ + __fpclassifyf(x) \ + : (sizeof (x) == sizeof (double)) ? \ + __fpclassify(x) \ + : __fpclassifyl(x)) +#define isfinite(x) \ + ((sizeof (x) == sizeof (float)) ? \ + __isfinitef(x) \ + : (sizeof (x) == sizeof (double)) ? \ + __isfinite(x) \ + : __isfinitel(x)) +#define isnormal(x) \ + ((sizeof (x) == sizeof (float)) ? \ + __isnormalf(x) \ + : (sizeof (x) == sizeof (double)) ? \ + __isnormal(x) \ + : __isnormall(x)) +#define signbit(x) \ + ((sizeof (x) == sizeof (float)) ? \ + __signbitf(x) \ + : (sizeof (x) == sizeof (double)) ? \ + __signbit(x) \ + : __signbitl(x)) + +#define isgreater(x, y) (!isunordered((x), (y)) && (x) > (y)) +#define isgreaterequal(x, y) (!isunordered((x), (y)) && (x) >= (y)) +#define isless(x, y) (!isunordered((x), (y)) && (x) < (y)) +#define islessequal(x, y) (!isunordered((x), (y)) && (x) <= (y)) +#define islessgreater(x, y) (!isunordered((x), (y)) && \ + ((x) > (y) || (y) > (x))) +#define isunordered(x, y) (isnan(x) || isnan(y)) +#endif /* __ISO_C_VISIBLE >= 1999 */ + +#define isinf(x) \ + ((sizeof (x) == sizeof (float)) ? \ + __isinff(x) \ + : (sizeof (x) == sizeof (double)) ? \ + __isinf(x) \ + : __isinfl(x)) +#define isnan(x) \ + ((sizeof (x) == sizeof (float)) ? \ + __isnanf(x) \ + : (sizeof (x) == sizeof (double)) ? \ + __isnan(x) \ + : __isnanl(x)) + +/* + * XOPEN/SVID + */ +#if __BSD_VISIBLE || __XPG_VISIBLE +#define M_E ((double)2.7182818284590452354) /* e */ +#define M_LOG2E ((double)1.4426950408889634074) /* log 2e */ +#define M_LOG10E ((double)0.43429448190325182765) /* log 10e */ +#define M_LN2 ((double)0.69314718055994530942) /* log e2 */ +#define M_LN10 ((double)2.30258509299404568402) /* log e10 */ +#define M_PI ((double)3.14159265358979323846) /* pi */ +#define M_PI_2 ((double)1.57079632679489661923) /* pi/2 */ +#define M_PI_4 ((double)0.78539816339744830962) /* pi/4 */ +#define M_1_PI ((double)0.31830988618379067154) /* 1/pi */ +#define M_2_PI ((double)0.63661977236758134308) /* 2/pi */ +#define M_2_SQRTPI ((double)1.12837916709551257390) /* 2/sqrt(pi) */ +#define M_SQRT2 ((double)1.41421356237309504880) /* sqrt(2) */ +#define M_SQRT1_2 ((double)0.70710678118654752440) /* 1/sqrt(2) */ + +#define MAXFLOAT ((float)3.40282346638528860e+38) + +extern int signgam; +#endif /* __BSD_VISIBLE || __XPG_VISIBLE */ + +#if __POSIX_VISIBLE >= 201403 +#define M_El 2.718281828459045235360287471352662498L /* e */ +#define M_LOG2El 1.442695040888963407359924681001892137L /* log 2e */ +#define M_LOG10El 0.434294481903251827651128918916605082L /* log 10e */ +#define M_LN2l 0.693147180559945309417232121458176568L /* log e2 */ +#define M_LN10l 2.302585092994045684017991454684364208L /* log e10 */ +#define M_PIl 3.141592653589793238462643383279502884L /* pi */ +#define M_PI_2l 1.570796326794896619231321691639751442L /* pi/2 */ +#define M_PI_4l 0.785398163397448309615660845819875721L /* pi/4 */ +#define M_1_PIl 0.318309886183790671537767526745028724L /* 1/pi */ +#define M_2_PIl 0.636619772367581343075535053490057448L /* 2/pi */ +#define M_2_SQRTPIl 1.128379167095512573896158903121545172L /* 2/sqrt(pi) */ +#define M_SQRT2l 1.414213562373095048801688724209698079L /* sqrt(2) */ +#define M_SQRT1_2l 0.707106781186547524400844362104849039L /* 1/sqrt(2) */ +#endif /* __POSIX_VISIBLE >= 201403 */ + +#if __BSD_VISIBLE +#define HUGE MAXFLOAT +#endif /* __BSD_VISIBLE */ + +/* + * ANSI/POSIX + */ +double acos(double); +double asin(double); +double atan(double); +double atan2(double, double); +double cos(double); +double sin(double); +double tan(double); + +double cosh(double); +double sinh(double); +double tanh(double); + +double exp(double); +double frexp(double, int *); +double ldexp(double, int); +double log(double); +double log10(double); +double modf(double, double *); + +double pow(double, double); +double sqrt(double); + +double ceil(double); +double fabs(double); +double floor(double); +double fmod(double, double); + +/* + * C99 + */ +#if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 || __XPG_VISIBLE +double acosh(double); +double asinh(double); +double atanh(double); + +double exp2(double); +double expm1(double); +int ilogb(double); +double log1p(double); +double log2(double); +double logb(double); +double scalbn(double, int); +double scalbln(double, long int); + +double cbrt(double); +double hypot(double, double); + +double erf(double); +double erfc(double); +double lgamma(double); +double tgamma(double); + +double nearbyint(double); +double rint(double); +long int lrint(double); +long long int llrint(double); +double round(double); +long int lround(double); +long long int llround(double); +double trunc(double); + +double remainder(double, double); +double remquo(double, double, int *); + +double copysign(double, double); +double nan(const char *); +double nextafter(double, double); +double nexttoward(double, long double); + +double fdim(double, double); +double fmax(double, double); +double fmin(double, double); + +double fma(double, double, double); +#endif /* __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 || __XPG_VISIBLE */ + +#if __BSD_VISIBLE || __XPG_VISIBLE +double j0(double); +double j1(double); +double jn(int, double); +double scalb(double, double); +double y0(double); +double y1(double); +double yn(int, double); +#endif /* __BSD_VISIBLE || __XPG_VISIBLE */ + +#if __BSD_VISIBLE || __XPG_VISIBLE <= 500 +double gamma(double); +#endif /* __BSD_VISIBLE || __XPG_VISIBLE <= 500 */ + +/* + * BSD math library entry points + */ +#if __BSD_VISIBLE +double drem(double, double); +int finite(double); + +/* + * Reentrant version of gamma & lgamma; passes signgam back by reference + * as the second argument; user must allocate space for signgam. + */ +double gamma_r(double, int *); +double lgamma_r(double, int *); + +void sincos(double, double *, double *); + +/* + * IEEE Test Vector + */ +double significand(double); +#endif /* __BSD_VISIBLE */ + +/* + * Float versions of C99 functions + */ +#if __ISO_C_VISIBLE >= 1999 +float acosf(float); +float asinf(float); +float atanf(float); +float atan2f(float, float); +float cosf(float); +float sinf(float); +float tanf(float); + +float acoshf(float); +float asinhf(float); +float atanhf(float); +float coshf(float); +float sinhf(float); +float tanhf(float); + +float expf(float); +float exp2f(float); +float expm1f(float); +float frexpf(float, int *); +int ilogbf(float); +float ldexpf(float, int); +float logf(float); +float log10f(float); +float log1pf(float); +float log2f(float); +float logbf(float); +float modff(float, float *); +float scalbnf(float, int); +float scalblnf(float, long int); + +float cbrtf(float); +float fabsf(float); +float hypotf(float, float); +float powf(float, float); +float sqrtf(float); + +float erff(float); +float erfcf(float); +float lgammaf(float); +float tgammaf(float); + +float ceilf(float); +float floorf(float); +float nearbyintf(float); +float rintf(float); +long int lrintf(float); +long long int llrintf(float); +float roundf(float); +long int lroundf(float); +long long int llroundf(float); +float truncf(float); + +float fmodf(float, float); +float remainderf(float, float); +float remquof(float, float, int *); + +float copysignf(float, float); +float nanf(const char *); +float nextafterf(float, float); +float nexttowardf(float, long double); + +float fdimf(float, float); +float fmaxf(float, float); +float fminf(float, float); + +float fmaf(float, float, float); +#endif /* __ISO_C_VISIBLE >= 1999 */ + +#if __BSD_VISIBLE || __XPG_VISIBLE +float j0f(float); +float j1f(float); +float jnf(int, float); +float scalbf(float, float); +float y0f(float); +float y1f(float); +float ynf(int, float); +#endif /* __BSD_VISIBLE || __XPG_VISIBLE */ + +#if __BSD_VISIBLE || __XPG_VISIBLE <= 500 +float gammaf(float); +#endif /* __BSD_VISIBLE || __XPG_VISIBLE <= 500 */ + +/* + * Float versions of BSD math library entry points + */ +#if __BSD_VISIBLE +float dremf(float, float); +int finitef(float); +int isinff(float); +int isnanf(float); + +/* + * Float versions of reentrant version of gamma & lgamma; passes + * signgam back by reference as the second argument; user must + * allocate space for signgam. + */ +float gammaf_r(float, int *); +float lgammaf_r(float, int *); + +void sincosf(float, float *, float *); + +/* + * Float version of IEEE Test Vector + */ +float significandf(float); +#endif /* __BSD_VISIBLE */ + +/* + * Long double versions of C99 functions + */ +#if __ISO_C_VISIBLE >= 1999 +long double acosl(long double); +long double asinl(long double); +long double atanl(long double); +long double atan2l(long double, long double); +long double cosl(long double); +long double sinl(long double); +long double tanl(long double); + +long double acoshl(long double); +long double asinhl(long double); +long double atanhl(long double); +long double coshl(long double); +long double sinhl(long double); +long double tanhl(long double); + +long double expl(long double); +long double exp2l(long double); +long double expm1l(long double); +long double frexpl(long double, int *); +int ilogbl(long double); +long double ldexpl(long double, int); +long double logl(long double); +long double log10l(long double); +long double log1pl(long double); +long double log2l(long double); +long double logbl(long double); +long double modfl(long double, long double *); +long double scalbnl(long double, int); +long double scalblnl(long double, long int); + +long double cbrtl(long double); +long double fabsl(long double); +long double hypotl(long double, long double); +long double powl(long double, long double); +long double sqrtl(long double); + +long double erfl(long double); +long double erfcl(long double); +long double lgammal(long double); +long double tgammal(long double); + +long double ceill(long double); +long double floorl(long double); +long double nearbyintl(long double); +long double rintl(long double); +long int lrintl(long double); +long long int llrintl(long double); +long double roundl(long double); +long int lroundl(long double); +long long int llroundl(long double); +long double truncl(long double); + +long double fmodl(long double, long double); +long double remainderl(long double, long double); +long double remquol(long double, long double, int *); + +long double copysignl(long double, long double); +long double nanl(const char *); +long double nextafterl(long double, long double); +long double nexttowardl(long double, long double); + +long double fdiml(long double, long double); +long double fmaxl(long double, long double); +long double fminl(long double, long double); + +long double fmal(long double, long double, long double); +#endif /* __ISO_C_VISIBLE >= 1999 */ + +/* + * Long double versions of BSD math library entry points + */ +#if __BSD_VISIBLE +void sincosl(long double, long double *, long double *); +#endif + +/* + * Library implementation + */ +int __fpclassify(double); +int __fpclassifyf(float); +int __fpclassifyl(long double); +int __isfinite(double); +int __isfinitef(float); +int __isfinitel(long double); +int __isinf(double); +int __isinff(float); +int __isinfl(long double); +int __isnan(double); +int __isnanf(float); +int __isnanl(long double); +int __isnormal(double); +int __isnormalf(float); +int __isnormall(long double); +int __signbit(double); +int __signbitf(float); +int __signbitl(long double); +__END_DECLS + +#endif /* !_MATH_H_ */ |