/* * ==================================================== * 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. * ==================================================== */ /* * Originally based on fdlibm.h 5.1 via FreeBSD. */ #pragma once #include #include __BEGIN_DECLS /* C11. */ typedef double __double_t; typedef __double_t double_t; typedef float __float_t; typedef __float_t float_t; #define HUGE_VAL __builtin_huge_val() #define HUGE_VALF __builtin_huge_valf() #define HUGE_VALL __builtin_huge_vall() #define INFINITY __builtin_inff() #define NAN __builtin_nanf("") #define FP_INFINITE 0x01 #define FP_NAN 0x02 #define FP_NORMAL 0x04 #define FP_SUBNORMAL 0x08 #define FP_ZERO 0x10 #if defined(__FP_FAST_FMA) #define FP_FAST_FMA 1 #endif #if defined(__FP_FAST_FMAF) #define FP_FAST_FMAF 1 #endif #if defined(__FP_FAST_FMAL) #define FP_FAST_FMAL 1 #endif #define FP_ILOGB0 (-INT_MAX) #define FP_ILOGBNAN INT_MAX #define MATH_ERRNO 1 #define MATH_ERREXCEPT 2 #define math_errhandling MATH_ERREXCEPT #define fpclassify(x) __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, FP_SUBNORMAL, FP_ZERO, x) #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) \ ((sizeof(x) == sizeof(float)) ? __builtin_signbitf(x) \ : (sizeof(x) == sizeof(double)) ? __builtin_signbit(x) \ : __builtin_signbitl(x)) 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 __x, int* _Nonnull __exponent); float frexpf(float __x, int* _Nonnull __exponent); long double frexpl(long double __x, int* _Nonnull __exponent); int ilogb(double __x) __attribute_const__; int ilogbf(float __x) __attribute_const__; int ilogbl(long double __x) __attribute_const__; double ldexp(double __x, int __exponent); float ldexpf(float __x, int __exponent); long double ldexpl(long double __x, int __exponent); 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 __x, double* _Nonnull __integral_part); float modff(float __x, float* _Nonnull __integral_part); long double modfl(long double __x, long double* _Nonnull __integral_part); double scalbn(double __x, int __exponent); float scalbnf(float __x, int __exponent); long double scalbnl(long double __x, int __exponent); double scalbln(double __x, long __exponent); float scalblnf(float __x, long __exponent); long double scalblnl(long double __x, long __exponent); double cbrt(double __x); float cbrtf(float __x); long double cbrtl(long double __x); double fabs(double __x) __attribute_const__; float fabsf(float __x) __attribute_const__; long double fabsl(long double __x) __attribute_const__; 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 lrint(double __x); long lrintf(float __x); long lrintl(long double __x); long long llrint(double __x); long long llrintf(float __x); long long llrintl(long double __x); double round(double __x); float roundf(float __x); long double roundl(long double __x); long lround(double __x); long lroundf(float __x); long lroundl(long double __x); long long llround(double __x); long long llroundf(float __x); long long 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 remquo(double __x, double __y, int* _Nonnull __quotient_bits); float remquof(float __x, float __y, int* _Nonnull __quotient_bits); long double remquol(long double __x, long double __y, int* _Nonnull __quotient_bits); double copysign(double __value, double __sign) __attribute_const__; float copysignf(float __value, float __sign) __attribute_const__; long double copysignl(long double __value, long double __sign) __attribute_const__; double nan(const char* _Nonnull __kind) __attribute_const__; float nanf(const char* _Nonnull __kind) __attribute_const__; long double nanl(const char* _Nonnull __kind) __attribute_const__; 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, long double __y); float nexttowardf(float __x, long double __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) __attribute_const__; float fmaxf(float __x, float __y) __attribute_const__; long double fmaxl(long double __x, long double __y) __attribute_const__; double fmin(double __x, double __y) __attribute_const__; float fminf(float __x, float __y) __attribute_const__; long double fminl(long double __x, long double __y) __attribute_const__; 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); #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)) /* * https://code.google.com/p/android/issues/detail?id=271629 * To be fully compliant with C++, we need to not define these (C doesn't * specify them either). Exposing these means that isinf and isnan will have a * return type of int in C++ rather than bool like they're supposed to be. * * GNU libstdc++ 4.9 isn't able to handle a standard compliant C library. Its * will `#undef isnan` from math.h and only adds the function overloads * to the std namespace, making it impossible to use both (which gets * included by a lot of other standard headers) and ::isnan. */ int (isinf)(double __x) __attribute_const__; int (isnan)(double __x) __attribute_const__; /* POSIX extensions. */ extern int signgam; double j0(double __x); double j1(double __x); double jn(int __n, double __x); double y0(double __x); double y1(double __x); double yn(int __n, double __x); #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) /* BSD extensions. */ #if defined(__USE_BSD) #define HUGE MAXFLOAT #endif /* Extensions in both BSD and GNU. */ #if defined(__USE_BSD) || defined(__USE_GNU) double gamma(double __x); double scalb(double __x, double __exponent); double drem(double __x, double __y); int finite(double __x) __attribute_const__; int isnanf(float __x) __attribute_const__; double gamma_r(double __x, int* _Nonnull __sign); double lgamma_r(double __x, int* _Nonnull __sign); double significand(double __x); long double lgammal_r(long double __x, int* _Nonnull __sign) __INTRODUCED_IN(23); long double significandl(long double __x); float dremf(float __x, float __y); int finitef(float __x) __attribute_const__; float gammaf(float __x); float j0f(float __x); float j1f(float __x); float jnf(int __n, float __x); float scalbf(float __x, float __exponent); float y0f(float __x); float y1f(float __x); float ynf(int __n, float __x); float gammaf_r(float __x, int* _Nonnull __sign); float lgammaf_r(float __x, int* _Nonnull __sign); float significandf(float __x); void sincos(double __x, double* _Nonnull __sin, double* _Nonnull __cos); void sincosf(float __x, float* _Nonnull __sin, float* _Nonnull __cos); void sincosl(long double __x, long double* _Nonnull __sin, long double* _Nonnull __cos); #endif /* GNU extensions. */ #if defined(__USE_GNU) #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 __END_DECLS