/* * ==================================================== * 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 #include #include #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 . */ #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) __NDK_FPABI_MATH__ __pure2; int __fpclassifyf(float) __NDK_FPABI_MATH__ __pure2; int __fpclassifyl(long double) __NDK_FPABI_MATH__ __pure2; int __isfinitef(float) __NDK_FPABI_MATH__ __pure2; int __isfinite(double) __NDK_FPABI_MATH__ __pure2; int __isfinitel(long double) __NDK_FPABI_MATH__ __pure2; int __isinff(float) __NDK_FPABI_MATH__ __pure2; int __isinf(double) __NDK_FPABI_MATH__ __pure2; int __isinfl(long double) __NDK_FPABI_MATH__ __pure2; int __isnanl(long double) __NDK_FPABI_MATH__ __pure2; int __isnormalf(float) __NDK_FPABI_MATH__ __pure2; int __isnormal(double) __NDK_FPABI_MATH__ __pure2; int __isnormall(long double) __NDK_FPABI_MATH__ __pure2; int __signbit(double) __NDK_FPABI_MATH__ __pure2; int __signbitf(float) __NDK_FPABI_MATH__ __pure2; int __signbitl(long double) __NDK_FPABI_MATH__ __pure2; double acos(double) __NDK_FPABI_MATH__; double asin(double) __NDK_FPABI_MATH__; double atan(double) __NDK_FPABI_MATH__; double atan2(double, double) __NDK_FPABI_MATH__; double cos(double) __NDK_FPABI_MATH__; double sin(double) __NDK_FPABI_MATH__; double tan(double) __NDK_FPABI_MATH__; double cosh(double) __NDK_FPABI_MATH__; double sinh(double) __NDK_FPABI_MATH__; double tanh(double) __NDK_FPABI_MATH__; double exp(double) __NDK_FPABI_MATH__; double frexp(double, int *) __NDK_FPABI_MATH__; /* fundamentally !__pure2 */ double ldexp(double, int) __NDK_FPABI_MATH__; double log(double) __NDK_FPABI_MATH__; double log10(double) __NDK_FPABI_MATH__; double modf(double, double *) __NDK_FPABI_MATH__; /* fundamentally !__pure2 */ double pow(double, double) __NDK_FPABI_MATH__; double sqrt(double) __NDK_FPABI_MATH__; double ceil(double) __NDK_FPABI_MATH__; double fabs(double) __NDK_FPABI_MATH__ __pure2; double floor(double) __NDK_FPABI_MATH__; double fmod(double, double) __NDK_FPABI_MATH__; /* * These functions are not in C90. */ /* #if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 || __XSI_VISIBLE */ double acosh(double) __NDK_FPABI_MATH__; double asinh(double) __NDK_FPABI_MATH__; double atanh(double) __NDK_FPABI_MATH__; double cbrt(double) __NDK_FPABI_MATH__; double erf(double) __NDK_FPABI_MATH__; double erfc(double) __NDK_FPABI_MATH__; double exp2(double) __NDK_FPABI_MATH__; double expm1(double) __NDK_FPABI_MATH__; double fma(double, double, double) __NDK_FPABI_MATH__; double hypot(double, double) __NDK_FPABI_MATH__; int ilogb(double) __NDK_FPABI_MATH__ __pure2; /* int (isinf)(double) __NDK_FPABI_MATH__ __pure2; */ int (isnan)(double) __NDK_FPABI_MATH__ __pure2; double lgamma(double) __NDK_FPABI_MATH__; long long llrint(double) __NDK_FPABI_MATH__; long long llround(double) __NDK_FPABI_MATH__; double log1p(double) __NDK_FPABI_MATH__; double log2(double) __NDK_FPABI_MATH__; double logb(double) __NDK_FPABI_MATH__; long lrint(double) __NDK_FPABI_MATH__; long lround(double) __NDK_FPABI_MATH__; double nan(const char *) __NDK_FPABI_MATH__ __pure2; double nextafter(double, double) __NDK_FPABI_MATH__; double remainder(double, double) __NDK_FPABI_MATH__; double remquo(double, double, int *) __NDK_FPABI_MATH__; double rint(double) __NDK_FPABI_MATH__; /* #endif */ /* __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 || __XSI_VISIBLE */ /* #if __BSD_VISIBLE || __XSI_VISIBLE */ double j0(double) __NDK_FPABI_MATH__; double j1(double) __NDK_FPABI_MATH__; double jn(int, double) __NDK_FPABI_MATH__; double scalb(double, double) __NDK_FPABI_MATH__; double y0(double) __NDK_FPABI_MATH__; double y1(double) __NDK_FPABI_MATH__; double yn(int, double) __NDK_FPABI_MATH__; /* #if __XSI_VISIBLE <= 500 || __BSD_VISIBLE */ double gamma(double) __NDK_FPABI_MATH__; /* #endif */ /* #endif */ /* __BSD_VISIBLE || __XSI_VISIBLE */ /* #if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 */ double copysign(double, double) __NDK_FPABI_MATH__ __pure2; double fdim(double, double) __NDK_FPABI_MATH__; double fmax(double, double) __NDK_FPABI_MATH__ __pure2; double fmin(double, double) __NDK_FPABI_MATH__ __pure2; double nearbyint(double) __NDK_FPABI_MATH__; double round(double) __NDK_FPABI_MATH__; double scalbln(double, long) __NDK_FPABI_MATH__; double scalbn(double, int) __NDK_FPABI_MATH__; double tgamma(double) __NDK_FPABI_MATH__; double trunc(double) __NDK_FPABI_MATH__; /* #endif */ /* * BSD math library entry points */ /* #if __BSD_VISIBLE */ double drem(double, double) __NDK_FPABI_MATH__; int finite(double) __NDK_FPABI_MATH__ __pure2; int isnanf(float) __NDK_FPABI_MATH__ __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 *) __NDK_FPABI_MATH__; double lgamma_r(double, int *) __NDK_FPABI_MATH__; /* * IEEE Test Vector */ double significand(double) __NDK_FPABI_MATH__; /* #endif */ /* __BSD_VISIBLE */ /* float versions of ANSI/POSIX functions */ /*#if __ISO_C_VISIBLE >= 1999 */ float acosf(float) __NDK_FPABI_MATH__; float asinf(float) __NDK_FPABI_MATH__; float atanf(float) __NDK_FPABI_MATH__; float atan2f(float, float) __NDK_FPABI_MATH__; float cosf(float) __NDK_FPABI_MATH__; float sinf(float) __NDK_FPABI_MATH__; float tanf(float) __NDK_FPABI_MATH__; float coshf(float) __NDK_FPABI_MATH__; float sinhf(float) __NDK_FPABI_MATH__; float tanhf(float) __NDK_FPABI_MATH__; float exp2f(float) __NDK_FPABI_MATH__; float expf(float) __NDK_FPABI_MATH__; float expm1f(float) __NDK_FPABI_MATH__; float frexpf(float, int *) __NDK_FPABI_MATH__; /* fundamentally !__pure2 */ int ilogbf(float) __NDK_FPABI_MATH__ __pure2; float ldexpf(float, int) __NDK_FPABI_MATH__; float log10f(float) __NDK_FPABI_MATH__; float log1pf(float) __NDK_FPABI_MATH__; float log2f(float) __NDK_FPABI_MATH__; float logf(float) __NDK_FPABI_MATH__; float modff(float, float *) __NDK_FPABI_MATH__; /* fundamentally !__pure2 */ float powf(float, float) __NDK_FPABI_MATH__; float sqrtf(float) __NDK_FPABI_MATH__; float ceilf(float) __NDK_FPABI_MATH__; float fabsf(float) __NDK_FPABI_MATH__ __pure2; float floorf(float) __NDK_FPABI_MATH__; float fmodf(float, float) __NDK_FPABI_MATH__; float roundf(float) __NDK_FPABI_MATH__; float erff(float) __NDK_FPABI_MATH__; float erfcf(float) __NDK_FPABI_MATH__; float hypotf(float, float) __NDK_FPABI_MATH__; float lgammaf(float) __NDK_FPABI_MATH__; float tgammaf(float) __NDK_FPABI_MATH__; float acoshf(float) __NDK_FPABI_MATH__; float asinhf(float) __NDK_FPABI_MATH__; float atanhf(float) __NDK_FPABI_MATH__; float cbrtf(float) __NDK_FPABI_MATH__; float logbf(float) __NDK_FPABI_MATH__; float copysignf(float, float) __NDK_FPABI_MATH__ __pure2; long long llrintf(float) __NDK_FPABI_MATH__; long long llroundf(float) __NDK_FPABI_MATH__; long lrintf(float) __NDK_FPABI_MATH__; long lroundf(float) __NDK_FPABI_MATH__; float nanf(const char *) __NDK_FPABI_MATH__ __pure2; float nearbyintf(float) __NDK_FPABI_MATH__; float nextafterf(float, float) __NDK_FPABI_MATH__; float remainderf(float, float) __NDK_FPABI_MATH__; float remquof(float, float, int *) __NDK_FPABI_MATH__; float rintf(float) __NDK_FPABI_MATH__; float scalblnf(float, long) __NDK_FPABI_MATH__; float scalbnf(float, int) __NDK_FPABI_MATH__; float truncf(float) __NDK_FPABI_MATH__; float fdimf(float, float) __NDK_FPABI_MATH__; float fmaf(float, float, float) __NDK_FPABI_MATH__; float fmaxf(float, float) __NDK_FPABI_MATH__ __pure2; float fminf(float, float) __NDK_FPABI_MATH__ __pure2; /* #endif */ /* * float versions of BSD math library entry points */ /* #if __BSD_VISIBLE */ float dremf(float, float) __NDK_FPABI_MATH__; int finitef(float) __NDK_FPABI_MATH__ __pure2; float gammaf(float) __NDK_FPABI_MATH__; float j0f(float) __NDK_FPABI_MATH__; float j1f(float) __NDK_FPABI_MATH__; float jnf(int, float) __NDK_FPABI_MATH__; float scalbf(float, float) __NDK_FPABI_MATH__; float y0f(float) __NDK_FPABI_MATH__; float y1f(float) __NDK_FPABI_MATH__; float ynf(int, float) __NDK_FPABI_MATH__; /* * 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 *) __NDK_FPABI_MATH__; float lgammaf_r(float, int *) __NDK_FPABI_MATH__; /* * float version of IEEE Test Vector */ float significandf(float) __NDK_FPABI_MATH__; /* #endif */ /* __BSD_VISIBLE */ /* * long double versions of ISO/POSIX math functions */ /* #if __ISO_C_VISIBLE >= 1999 */ #if 0 long double acoshl(long double) __NDK_FPABI_MATH__; long double acosl(long double) __NDK_FPABI_MATH__; long double asinhl(long double) __NDK_FPABI_MATH__; long double asinl(long double) __NDK_FPABI_MATH__; long double atan2l(long double, long double) __NDK_FPABI_MATH__; long double atanhl(long double) __NDK_FPABI_MATH__; long double atanl(long double) __NDK_FPABI_MATH__; long double cbrtl(long double) __NDK_FPABI_MATH__; #endif long double ceill(long double) __NDK_FPABI_MATH__; long double copysignl(long double, long double) __NDK_FPABI_MATH__ __pure2; #if 0 long double coshl(long double) __NDK_FPABI_MATH__; long double cosl(long double) __NDK_FPABI_MATH__; long double erfcl(long double) __NDK_FPABI_MATH__; long double erfl(long double) __NDK_FPABI_MATH__; long double exp2l(long double) __NDK_FPABI_MATH__; long double expl(long double) __NDK_FPABI_MATH__; long double expm1l(long double) __NDK_FPABI_MATH__; #endif long double fabsl(long double) __NDK_FPABI_MATH__ __pure2; long double fdiml(long double, long double) __NDK_FPABI_MATH__; long double floorl(long double) __NDK_FPABI_MATH__; long double fmal(long double, long double, long double) __NDK_FPABI_MATH__; long double fmaxl(long double, long double) __NDK_FPABI_MATH__ __pure2; long double fminl(long double, long double) __NDK_FPABI_MATH__ __pure2; #if 0 long double fmodl(long double, long double) __NDK_FPABI_MATH__; #endif long double frexpl(long double value, int *) __NDK_FPABI_MATH__; /* fundamentally !__pure2 */ #if 0 long double hypotl(long double, long double) __NDK_FPABI_MATH__; #endif int ilogbl(long double) __NDK_FPABI_MATH__ __pure2; long double ldexpl(long double, int) __NDK_FPABI_MATH__; #if 0 long double lgammal(long double) __NDK_FPABI_MATH__; long long llrintl(long double) __NDK_FPABI_MATH__; #endif long long llroundl(long double) __NDK_FPABI_MATH__; #if 0 long double log10l(long double) __NDK_FPABI_MATH__; long double log1pl(long double) __NDK_FPABI_MATH__; long double log2l(long double) __NDK_FPABI_MATH__; #endif long double logbl(long double) __NDK_FPABI_MATH__; #if 0 long lrintl(long double) __NDK_FPABI_MATH__; #endif long lroundl(long double) __NDK_FPABI_MATH__; #if 0 long double modfl(long double, long double *) __NDK_FPABI_MATH__; /* fundamentally !__pure2 */ #endif long double nanl(const char *) __NDK_FPABI_MATH__ __pure2; #if 0 long double nearbyintl(long double) __NDK_FPABI_MATH__; #endif long double nextafterl(long double, long double) __NDK_FPABI_MATH__; double nexttoward(double, long double) __NDK_FPABI_MATH__; float nexttowardf(float, long double) __NDK_FPABI_MATH__; long double nexttowardl(long double, long double) __NDK_FPABI_MATH__; #if 0 long double powl(long double, long double) __NDK_FPABI_MATH__; long double remainderl(long double, long double) __NDK_FPABI_MATH__; long double remquol(long double, long double, int *) __NDK_FPABI_MATH__; long double rintl(long double) __NDK_FPABI_MATH__; #endif long double roundl(long double) __NDK_FPABI_MATH__; long double scalblnl(long double, long) __NDK_FPABI_MATH__; long double scalbnl(long double, int) __NDK_FPABI_MATH__; #if 0 long double sinhl(long double) __NDK_FPABI_MATH__; long double sinl(long double) __NDK_FPABI_MATH__; long double sqrtl(long double) __NDK_FPABI_MATH__; long double tanhl(long double) __NDK_FPABI_MATH__; long double tanl(long double) __NDK_FPABI_MATH__; long double tgammal(long double) __NDK_FPABI_MATH__; #endif long double truncl(long double) __NDK_FPABI_MATH__; /* BIONIC: GLibc compatibility - required by the ARM toolchain */ #ifdef _GNU_SOURCE void sincos(double x, double *sin, double *cos) __NDK_FPABI_MATH__; void sincosf(float x, float *sin, float *cos) __NDK_FPABI_MATH__; void sincosl(long double x, long double *sin, long double *cos) __NDK_FPABI_MATH__; #endif /* #endif */ /* __ISO_C_VISIBLE >= 1999 */ long double log2l(long double) __NDK_FPABI_MATH__; __END_DECLS #endif /* !_MATH_H_ */