#ifndef _MATH_H #define _MATH_H 1 // https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/math.h.html #include <sys/cdefs.h> #include <float.h> __BEGIN_DECLS #ifndef FLT_EVAL_METHOD #define FLT_EVAL_METHOD 0 #endif #if FLT_EVAL_METHOD == 0 typedef float float_t; typedef double double_t; #elif FLT_EVAL_METHOD == 1 typedef double float_t; typedef double double_t; #elif FLT_EVAL_METHOD == 2 typedef long double float_t; typedef long double double_t; #endif #define fpclassify(x) __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, FP_SUBNORMAL, FP_ZERO, x) #define isfinite(x) __builtin_isfinite(x) #define isgreater(x, y) __builtin_isgreater(x, y) #define isgreaterequal(x, y) __builtin_isgreaterequal(x, y) #define isinf(x) __builtin_isinf_sign(x) #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 isnan(x) __builtin_isnan(x) #define isnormal(x) __builtin_isnormal(x) #define isunordered(x, y) __builtin_isunordered(x, y) #define signbit(x) __builtin_signbit(x) #define M_E 2.7182818284590452354 #define M_LOG2E 1.4426950408889634074 #define M_LOG10E 0.43429448190325182765 #define M_LN2 0.69314718055994530942 #define M_LN10 2.30258509299404568402 #define M_PI 3.14159265358979323846 #define M_PI_2 1.57079632679489661923 #define M_PI_4 0.78539816339744830962 #define M_1_PI 0.31830988618379067154 #define M_2_PI 0.63661977236758134308 #define M_2_SQRTPI 1.12837916709551257390 #define M_SQRT2 1.41421356237309504880 #define M_SQRT1_2 0.70710678118654752440 #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 0 #define FP_NAN 1 #define FP_NORMAL 2 #define FP_SUBNORMAL 3 #define FP_ZERO 4 #define FP_ILOGB0 -2147483647 #define FP_ILOGBNAN +2147483647 #define MATH_ERRNO 1 #define MATH_ERREXCEPT 2 #define math_errhandling (MATH_ERRNO | MATH_ERREXCEPT) double acos(double); float acosf(float); double acosh(double); float acoshf(float); long double acoshl(long double); long double acosl(long double); double asin(double); float asinf(float); double asinh(double); float asinhf(float); long double asinhl(long double); long double asinl(long double); double atan(double); double atan2(double, double); float atan2f(float, float); long double atan2l(long double, long double); float atanf(float); double atanh(double); float atanhf(float); long double atanhl(long double); long double atanl(long double); double cbrt(double); float cbrtf(float); long double cbrtl(long double); double ceil(double); float ceilf(float); long double ceill(long double); double copysign(double, double); float copysignf(float, float); long double copysignl(long double, long double); double cos(double); float cosf(float); double cosh(double); float coshf(float); long double coshl(long double); long double cosl(long double); double erf(double); double erfc(double); float erfcf(float); long double erfcl(long double); float erff(float); long double erfl(long double); double exp(double); double exp2(double); float exp2f(float); long double exp2l(long double); float expf(float); long double expl(long double); double expm1(double); float expm1f(float); long double expm1l(long double); double fabs(double); float fabsf(float); long double fabsl(long double); double fdim(double, double); float fdimf(float, float); long double fdiml(long double, long double); double floor(double); float floorf(float); long double floorl(long double); double fma(double, double, double); float fmaf(float, float, float); long double fmal(long double, long double, long double); double fmax(double, double); float fmaxf(float, float); long double fmaxl(long double, long double); double fmin(double, double); float fminf(float, float); long double fminl(long double, long double); double fmod(double, double); float fmodf(float, float); long double fmodl(long double, long double); double frexp(double, int*); float frexpf(float, int*); long double frexpl(long double, int*); double hypot(double, double); float hypotf(float, float); long double hypotl(long double, long double); int ilogb(double); int ilogbf(float); int ilogbl(long double); double j0(double); double j1(double); double jn(int, double); double ldexp(double, int); float ldexpf(float, int); long double ldexpl(long double, int); double lgamma(double); float lgammaf(float); long double lgammal(long double); long long llrint(double); long long llrintf(float); long long llrintl(long double); long long llround(double); long long llroundf(float); long long llroundl(long double); double log(double); double log10(double); float log10f(float); long double log10l(long double); double log1p(double); float log1pf(float); long double log1pl(long double); double log2(double); float log2f(float); long double log2l(long double); double logb(double); float logbf(float); long double logbl(long double); float logf(float); long double logl(long double); long lrint(double); long lrintf(float); long lrintl(long double); long lround(double); long lroundf(float); long lroundl(long double); double modf(double, double*); float modff(float, float*); long double modfl(long double, long double*); double nan(const char*); float nanf(const char*); long double nanl(const char*); double nearbyint(double); float nearbyintf(float); long double nearbyintl(long double); double nextafter(double, double); float nextafterf(float, float); long double nextafterl(long double, long double); double nexttoward(double, long double); float nexttowardf(float, long double); long double nexttowardl(long double, long double); double pow(double, double); float powf(float, float); long double powl(long double, long double); double remainder(double, double); float remainderf(float, float); long double remainderl(long double, long double); double remquo(double, double, int*); float remquof(float, float, int*); long double remquol(long double, long double, int*); double rint(double); float rintf(float); long double rintl(long double); double round(double); float roundf(float); long double roundl(long double); double scalbln(double, long); float scalblnf(float, long); long double scalblnl(long double, long); double scalbn(double, int); float scalbnf(float, int); long double scalbnl(long double, int); double sin(double); float sinf(float); double sinh(double); float sinhf(float); long double sinhl(long double); long double sinl(long double); double sqrt(double); float sqrtf(float); long double sqrtl(long double); double tan(double); float tanf(float); double tanh(double); float tanhf(float); long double tanhl(long double); long double tanl(long double); double tgamma(double); float tgammaf(float); long double tgammal(long double); double trunc(double); float truncf(float); long double truncl(long double); double y0(double); double y1(double); double yn(int, double); extern int signgam; __END_DECLS #endif