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Diffstat (limited to 'libm/include/math.h')
| -rw-r--r-- | libm/include/math.h | 486 |
1 files changed, 486 insertions, 0 deletions
diff --git a/libm/include/math.h b/libm/include/math.h new file mode 100644 index 0000000..ef6a9e6 --- /dev/null +++ b/libm/include/math.h @@ -0,0 +1,486 @@ +/* + * ==================================================== + * 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 + * $FreeBSD: src/lib/msun/src/math.h,v 1.61 2005/04/16 21:12:47 das Exp $ + */ + +#ifndef _MATH_H_ +#define _MATH_H_ + +#include <sys/cdefs.h> +#include <sys/types.h> +#include <limits.h> + +#define __pure2 + +/* + * ANSI/POSIX + */ +extern const union __infinity_un { + unsigned char __uc[8]; + double __ud; +} __infinity; + +extern const union __nan_un { + unsigned char __uc[sizeof(float)]; + float __uf; +} __nan; + +/* #if __GNUC_PREREQ__(3, 3) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 800) */ +#if 1 +#define __MATH_BUILTIN_CONSTANTS +#endif + +/* #if __GNUC_PREREQ__(3, 0) && !defined(__INTEL_COMPILER) */ +#if 1 +#define __MATH_BUILTIN_RELOPS +#endif + +/* #ifdef __MATH_BUILTIN_CONSTANTS */ +#if 1 +#define HUGE_VAL __builtin_huge_val() +#else +#define HUGE_VAL (__infinity.__ud) +#endif + +/* #if __ISO_C_VISIBLE >= 1999 */ +#if 0 +#define FP_ILOGB0 (-__INT_MAX) +#define FP_ILOGBNAN __INT_MAX +#else +#define FP_ILOGB0 (-INT_MAX) +#define FP_ILOGBNAN INT_MAX +#endif + +#ifdef __MATH_BUILTIN_CONSTANTS +#define HUGE_VALF __builtin_huge_valf() +#define HUGE_VALL __builtin_huge_vall() +#define INFINITY __builtin_inf() +#define NAN __builtin_nan("") +#else +#define HUGE_VALF (float)HUGE_VAL +#define HUGE_VALL (long double)HUGE_VAL +#define INFINITY HUGE_VALF +#define NAN (__nan.__uf) +#endif /* __MATH_BUILTIN_CONSTANTS */ + +#define MATH_ERRNO 1 +#define MATH_ERREXCEPT 2 +#define math_errhandling MATH_ERREXCEPT + +/* XXX We need a <machine/math.h>. */ +#if defined(__ia64__) || defined(__sparc64__) +#define FP_FAST_FMA +#endif +#ifdef __ia64__ +#define FP_FAST_FMAL +#endif +#define FP_FAST_FMAF + +/* Symbolic constants to classify floating point numbers. */ +#define FP_INFINITE 0x01 +#define FP_NAN 0x02 +#define FP_NORMAL 0x04 +#define FP_SUBNORMAL 0x08 +#define FP_ZERO 0x10 +#define fpclassify(x) \ + ((sizeof (x) == sizeof (float)) ? __fpclassifyf(x) \ + : (sizeof (x) == sizeof (double)) ? __fpclassifyd(x) \ + : __fpclassifyl(x)) + +#define isfinite(x) \ + ((sizeof (x) == sizeof (float)) ? __isfinitef(x) \ + : (sizeof (x) == sizeof (double)) ? __isfinite(x) \ + : __isfinitel(x)) +#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)) +#define isnormal(x) \ + ((sizeof (x) == sizeof (float)) ? __isnormalf(x) \ + : (sizeof (x) == sizeof (double)) ? __isnormal(x) \ + : __isnormall(x)) + +#ifdef __MATH_BUILTIN_RELOPS +#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)) +#else +#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 /* __MATH_BUILTIN_RELOPS */ + +#define signbit(x) \ + ((sizeof (x) == sizeof (float)) ? __signbitf(x) \ + : (sizeof (x) == sizeof (double)) ? __signbit(x) \ + : __signbitl(x)) + +#if 0 +typedef __double_t double_t; +typedef __float_t float_t; +#endif +/* #endif */ /* __ISO_C_VISIBLE >= 1999 */ + +/* + * XOPEN/SVID + */ +/* #if __BSD_VISIBLE || __XSI_VISIBLE */ +#define M_E 2.7182818284590452354 /* e */ +#define M_LOG2E 1.4426950408889634074 /* log 2e */ +#define M_LOG10E 0.43429448190325182765 /* log 10e */ +#define M_LN2 0.69314718055994530942 /* log e2 */ +#define M_LN10 2.30258509299404568402 /* log e10 */ +#define M_PI 3.14159265358979323846 /* pi */ +#define M_PI_2 1.57079632679489661923 /* pi/2 */ +#define M_PI_4 0.78539816339744830962 /* pi/4 */ +#define M_1_PI 0.31830988618379067154 /* 1/pi */ +#define M_2_PI 0.63661977236758134308 /* 2/pi */ +#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */ +#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */ +#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */ + +#define MAXFLOAT ((float)3.40282346638528860e+38) +extern int signgam; +/* #endif */ /* __BSD_VISIBLE || __XSI_VISIBLE */ + +#if __BSD_VISIBLE +#if 0 +/* Old value from 4.4BSD-Lite math.h; this is probably better. */ +#define HUGE HUGE_VAL +#else +#define HUGE MAXFLOAT +#endif +#endif /* __BSD_VISIBLE */ + +/* + * Most of these functions depend on the rounding mode and have the side + * effect of raising floating-point exceptions, so they are not declared + * as __pure2. In C99, FENV_ACCESS affects the purity of these functions. + */ +__BEGIN_DECLS +/* + * ANSI/POSIX + */ +int __fpclassifyd(double) __pure2; +int __fpclassifyf(float) __pure2; +int __fpclassifyl(long double) __pure2; +int __isfinitef(float) __pure2; +int __isfinite(double) __pure2; +int __isfinitel(long double) __pure2; +int __isinff(float) __pure2; +int __isinf(double) __pure2; +int __isinfl(long double) __pure2; +int __isnanl(long double) __pure2; +int __isnormalf(float) __pure2; +int __isnormal(double) __pure2; +int __isnormall(long double) __pure2; +int __signbit(double) __pure2; +int __signbitf(float) __pure2; +int __signbitl(long double) __pure2; + +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 *); /* fundamentally !__pure2 */ +double ldexp(double, int); +double log(double); +double log10(double); +double modf(double, double *); /* fundamentally !__pure2 */ + +double pow(double, double); +double sqrt(double); + +double ceil(double); +double fabs(double) __pure2; +double floor(double); +double fmod(double, double); + +/* + * These functions are not in C90. + */ +/* #if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 || __XSI_VISIBLE */ +double acosh(double); +double asinh(double); +double atanh(double); +double cbrt(double); +double erf(double); +double erfc(double); +double exp2(double); +double expm1(double); +double fma(double, double, double); +double hypot(double, double); +int ilogb(double) __pure2; +/* int (isinf)(double) __pure2; */ +int (isnan)(double) __pure2; +double lgamma(double); +long long llrint(double); +long long llround(double); +double log1p(double); +double logb(double); +long lrint(double); +long lround(double); +double nextafter(double, double); +double remainder(double, double); +double remquo(double, double, int *); +double rint(double); +/* #endif */ /* __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 || __XSI_VISIBLE */ + +/* #if __BSD_VISIBLE || __XSI_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); + +/* #if __XSI_VISIBLE <= 500 || __BSD_VISIBLE */ +double gamma(double); +/* #endif */ +/* #endif */ /* __BSD_VISIBLE || __XSI_VISIBLE */ + +/* #if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 */ +double copysign(double, double) __pure2; +double fdim(double, double); +double fmax(double, double) __pure2; +double fmin(double, double) __pure2; +double nearbyint(double); +double round(double); +double scalbln(double, long); +double scalbn(double, int); +double tgamma(double); +double trunc(double); +/* #endif */ + +/* + * BSD math library entry points + */ +/* #if __BSD_VISIBLE */ +double drem(double, double); +int finite(double) __pure2; +int isnanf(float) __pure2; + +/* + * 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 *); + +/* + * IEEE Test Vector + */ +double significand(double); +/* #endif */ /* __BSD_VISIBLE */ + +/* float versions of ANSI/POSIX 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 coshf(float); +float sinhf(float); +float tanhf(float); + +float exp2f(float); +float expf(float); +float expm1f(float); +float frexpf(float, int *); /* fundamentally !__pure2 */ +int ilogbf(float) __pure2; +float ldexpf(float, int); +float log10f(float); +float log1pf(float); +float logf(float); +float modff(float, float *); /* fundamentally !__pure2 */ + +float powf(float, float); +float sqrtf(float); + +float ceilf(float); +float fabsf(float) __pure2; +float floorf(float); +float fmodf(float, float); +float roundf(float); + +float erff(float); +float erfcf(float); +float hypotf(float, float); +float lgammaf(float); + +float acoshf(float); +float asinhf(float); +float atanhf(float); +float cbrtf(float); +float logbf(float); +float copysignf(float, float) __pure2; +long long llrintf(float); +long long llroundf(float); +long lrintf(float); +long lroundf(float); +float nearbyintf(float); +float nextafterf(float, float); +float remainderf(float, float); +float remquof(float, float, int *); +float rintf(float); +float scalblnf(float, long); +float scalbnf(float, int); +float truncf(float); + +float fdimf(float, float); +float fmaf(float, float, float); +float fmaxf(float, float) __pure2; +float fminf(float, float) __pure2; +/* #endif */ + +/* + * float versions of BSD math library entry points + */ +/* #if __BSD_VISIBLE */ +float dremf(float, float); +int finitef(float) __pure2; +float gammaf(float); +float j0f(float); +float j1f(float); +float jnf(int, float); +float scalbf(float, float); +float y0f(float); +float y1f(float); +float ynf(int, 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 *); + +/* + * float version of IEEE Test Vector + */ +float significandf(float); +/* #endif */ /* __BSD_VISIBLE */ + +/* + * long double versions of ISO/POSIX math functions + */ +/* #if __ISO_C_VISIBLE >= 1999 */ +#if 0 +long double acoshl(long double); +long double acosl(long double); +long double asinhl(long double); +long double asinl(long double); +long double atan2l(long double, long double); +long double atanhl(long double); +long double atanl(long double); +long double cbrtl(long double); +#endif +long double ceill(long double); +long double copysignl(long double, long double) __pure2; +#if 0 +long double coshl(long double); +long double cosl(long double); +long double erfcl(long double); +long double erfl(long double); +long double exp2l(long double); +long double expl(long double); +long double expm1l(long double); +#endif +long double fabsl(long double) __pure2; +long double fdiml(long double, long double); +long double floorl(long double); +long double fmal(long double, long double, long double); +long double fmaxl(long double, long double) __pure2; +long double fminl(long double, long double) __pure2; +#if 0 +long double fmodl(long double, long double); +#endif +long double frexpl(long double value, int *); /* fundamentally !__pure2 */ +#if 0 +long double hypotl(long double, long double); +#endif +int ilogbl(long double) __pure2; +long double ldexpl(long double, int); +#if 0 +long double lgammal(long double); +long long llrintl(long double); +#endif +long long llroundl(long double); +#if 0 +long double log10l(long double); +long double log1pl(long double); +long double log2l(long double); +long double logbl(long double); +long double logl(long double); +long lrintl(long double); +#endif +long lroundl(long double); +#if 0 +long double modfl(long double, long double *); /* fundamentally !__pure2 */ +long double nanl(const char *) __pure2; +long double nearbyintl(long double); +#endif +long double nextafterl(long double, long double); +double nexttoward(double, long double); +float nexttowardf(float, long double); +long double nexttowardl(long double, long double); +#if 0 +long double powl(long double, long double); +long double remainderl(long double, long double); +long double remquol(long double, long double, int *); +long double rintl(long double); +#endif +long double roundl(long double); +long double scalblnl(long double, long); +long double scalbnl(long double, int); +#if 0 +long double sinhl(long double); +long double sinl(long double); +long double sqrtl(long double); +long double tanhl(long double); +long double tanl(long double); +long double tgammal(long double); +#endif +long double truncl(long double); + +/* #endif */ /* __ISO_C_VISIBLE >= 1999 */ +__END_DECLS + +#endif /* !_MATH_H_ */ |