| #ifndef _MATH_H |
| #define _MATH_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #include <features.h> |
| |
| #define __NEED_float_t |
| #define __NEED_double_t |
| #include <bits/alltypes.h> |
| |
| #if 100*__GNUC__+__GNUC_MINOR__ >= 303 |
| #define NAN __builtin_nanf("") |
| #define INFINITY __builtin_inff() |
| #else |
| #define NAN (0.0f/0.0f) |
| #define INFINITY 1e5000f |
| #endif |
| |
| #define HUGE_VALF INFINITY |
| #define HUGE_VAL ((double)INFINITY) |
| #define HUGE_VALL ((long double)INFINITY) |
| |
| #define MATH_ERRNO 1 |
| #define MATH_ERREXCEPT 2 |
| #define math_errhandling 2 |
| |
| #define FP_ILOGBNAN (-1-0x7fffffff) |
| #define FP_ILOGB0 FP_ILOGBNAN |
| |
| #define FP_NAN 0 |
| #define FP_INFINITE 1 |
| #define FP_ZERO 2 |
| #define FP_SUBNORMAL 3 |
| #define FP_NORMAL 4 |
| |
| int __fpclassify(double); |
| int __fpclassifyf(float); |
| int __fpclassifyl(long double); |
| |
| static __inline unsigned __FLOAT_BITS(float __f) |
| { |
| union {float __f; unsigned __i;} __u; |
| __u.__f = __f; |
| return __u.__i; |
| } |
| static __inline unsigned long long __DOUBLE_BITS(double __f) |
| { |
| union {double __f; unsigned long long __i;} __u; |
| __u.__f = __f; |
| return __u.__i; |
| } |
| |
| #define fpclassify(x) ( \ |
| sizeof(x) == sizeof(float) ? __fpclassifyf(x) : \ |
| sizeof(x) == sizeof(double) ? __fpclassify(x) : \ |
| __fpclassifyl(x) ) |
| |
| #define isinf(x) ( \ |
| sizeof(x) == sizeof(float) ? (__FLOAT_BITS(x) & 0x7fffffff) == 0x7f800000 : \ |
| sizeof(x) == sizeof(double) ? (__DOUBLE_BITS(x) & -1ULL>>1) == 0x7ffULL<<52 : \ |
| __fpclassifyl(x) == FP_INFINITE) |
| |
| #define isnan(x) ( \ |
| sizeof(x) == sizeof(float) ? (__FLOAT_BITS(x) & 0x7fffffff) > 0x7f800000 : \ |
| sizeof(x) == sizeof(double) ? (__DOUBLE_BITS(x) & -1ULL>>1) > 0x7ffULL<<52 : \ |
| __fpclassifyl(x) == FP_NAN) |
| |
| #define isnormal(x) ( \ |
| sizeof(x) == sizeof(float) ? ((__FLOAT_BITS(x)+0x00800000) & 0x7fffffff) >= 0x01000000 : \ |
| sizeof(x) == sizeof(double) ? ((__DOUBLE_BITS(x)+(1ULL<<52)) & -1ULL>>1) >= 1ULL<<53 : \ |
| __fpclassifyl(x) == FP_NORMAL) |
| |
| #define isfinite(x) ( \ |
| sizeof(x) == sizeof(float) ? (__FLOAT_BITS(x) & 0x7fffffff) < 0x7f800000 : \ |
| sizeof(x) == sizeof(double) ? (__DOUBLE_BITS(x) & -1ULL>>1) < 0x7ffULL<<52 : \ |
| __fpclassifyl(x) > FP_INFINITE) |
| |
| int __signbit(double); |
| int __signbitf(float); |
| int __signbitl(long double); |
| |
| #define signbit(x) ( \ |
| sizeof(x) == sizeof(float) ? (int)(__FLOAT_BITS(x)>>31) : \ |
| sizeof(x) == sizeof(double) ? (int)(__DOUBLE_BITS(x)>>63) : \ |
| __signbitl(x) ) |
| |
| #define isunordered(x,y) (isnan((x)) ? ((void)(y),1) : isnan((y))) |
| |
| #define __ISREL_DEF(rel, op, type) \ |
| static __inline int __is##rel(type __x, type __y) \ |
| { return !isunordered(__x,__y) && __x op __y; } |
| |
| __ISREL_DEF(lessf, <, float_t) |
| __ISREL_DEF(less, <, double_t) |
| __ISREL_DEF(lessl, <, long double) |
| __ISREL_DEF(lessequalf, <=, float_t) |
| __ISREL_DEF(lessequal, <=, double_t) |
| __ISREL_DEF(lessequall, <=, long double) |
| __ISREL_DEF(lessgreaterf, !=, float_t) |
| __ISREL_DEF(lessgreater, !=, double_t) |
| __ISREL_DEF(lessgreaterl, !=, long double) |
| __ISREL_DEF(greaterf, >, float_t) |
| __ISREL_DEF(greater, >, double_t) |
| __ISREL_DEF(greaterl, >, long double) |
| __ISREL_DEF(greaterequalf, >=, float_t) |
| __ISREL_DEF(greaterequal, >=, double_t) |
| __ISREL_DEF(greaterequall, >=, long double) |
| |
| #define __tg_pred_2(x, y, p) ( \ |
| sizeof((x)+(y)) == sizeof(float) ? p##f(x, y) : \ |
| sizeof((x)+(y)) == sizeof(double) ? p(x, y) : \ |
| p##l(x, y) ) |
| |
| #define isless(x, y) __tg_pred_2(x, y, __isless) |
| #define islessequal(x, y) __tg_pred_2(x, y, __islessequal) |
| #define islessgreater(x, y) __tg_pred_2(x, y, __islessgreater) |
| #define isgreater(x, y) __tg_pred_2(x, y, __isgreater) |
| #define isgreaterequal(x, y) __tg_pred_2(x, y, __isgreaterequal) |
| |
| double acos(double); |
| float acosf(float); |
| long double acosl(long double); |
| |
| double acosh(double); |
| float acoshf(float); |
| long double acoshl(long double); |
| |
| double asin(double); |
| float asinf(float); |
| long double asinl(long double); |
| |
| double asinh(double); |
| float asinhf(float); |
| long double asinhl(long double); |
| |
| double atan(double); |
| float atanf(float); |
| long double atanl(long double); |
| |
| double atan2(double, double); |
| float atan2f(float, float); |
| long double atan2l(long double, long double); |
| |
| double atanh(double); |
| float atanhf(float); |
| long double atanhl(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); |
| long double cosl(long double); |
| |
| double cosh(double); |
| float coshf(float); |
| long double coshl(long double); |
| |
| double erf(double); |
| float erff(float); |
| long double erfl(long double); |
| |
| double erfc(double); |
| float erfcf(float); |
| long double erfcl(long double); |
| |
| double exp(double); |
| float expf(float); |
| long double expl(long double); |
| |
| double exp2(double); |
| float exp2f(float); |
| long double exp2l(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 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); |
| float logf(float); |
| long double logl(long 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); |
| |
| 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); |
| long double sinl(long double); |
| |
| double sinh(double); |
| float sinhf(float); |
| long double sinhl(long double); |
| |
| double sqrt(double); |
| float sqrtf(float); |
| long double sqrtl(long double); |
| |
| double tan(double); |
| float tanf(float); |
| long double tanl(long double); |
| |
| double tanh(double); |
| float tanhf(float); |
| long double tanhl(long double); |
| |
| double tgamma(double); |
| float tgammaf(float); |
| long double tgammal(long double); |
| |
| double trunc(double); |
| float truncf(float); |
| long double truncl(long double); |
| |
| |
| #if defined(_XOPEN_SOURCE) || defined(_BSD_SOURCE) |
| #undef MAXFLOAT |
| #define MAXFLOAT 3.40282346638528859812e+38F |
| #endif |
| |
| #if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE) |
| #define M_E 2.7182818284590452354 /* e */ |
| #define M_LOG2E 1.4426950408889634074 /* log_2 e */ |
| #define M_LOG10E 0.43429448190325182765 /* log_10 e */ |
| #define M_LN2 0.69314718055994530942 /* log_e 2 */ |
| #define M_LN10 2.30258509299404568402 /* log_e 10 */ |
| #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) */ |
| |
| extern int signgam; |
| |
| double j0(double); |
| double j1(double); |
| double jn(int, double); |
| |
| double y0(double); |
| double y1(double); |
| double yn(int, double); |
| #endif |
| |
| #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) |
| #define HUGE 3.40282346638528859812e+38F |
| |
| double drem(double, double); |
| float dremf(float, float); |
| |
| int finite(double); |
| int finitef(float); |
| |
| double scalb(double, double); |
| float scalbf(float, float); |
| |
| double significand(double); |
| float significandf(float); |
| |
| double lgamma_r(double, int*); |
| float lgammaf_r(float, int*); |
| |
| float j0f(float); |
| float j1f(float); |
| float jnf(int, float); |
| |
| float y0f(float); |
| float y1f(float); |
| float ynf(int, float); |
| #endif |
| |
| #ifdef _GNU_SOURCE |
| long double lgammal_r(long double, int*); |
| |
| void sincos(double, double*, double*); |
| void sincosf(float, float*, float*); |
| void sincosl(long double, long double*, long double*); |
| |
| double exp10(double); |
| float exp10f(float); |
| long double exp10l(long double); |
| |
| double pow10(double); |
| float pow10f(float); |
| long double pow10l(long double); |
| #endif |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif |
