X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=include%2Fmath.h;h=c029156a65d5dc0a09122ddc4d65f54f108fa7ff;hp=1a5f6fe9a4969c1be02810c2ceef6e11bc921235;hb=9448b0513e2eec020fbca9c10412b83df5027a16;hpb=414a4cdebc45925b59225cca208fee9c658b273e diff --git a/include/math.h b/include/math.h index 1a5f6fe9..c029156a 100644 --- a/include/math.h +++ b/include/math.h @@ -5,30 +5,30 @@ extern "C" { #endif +#include + #define __NEED_float_t #define __NEED_double_t -#define __NEED___uint16_t -#define __NEED___uint32_t -#define __NEED___uint64_t #include -#define __MAKE_FLOAT(i) (((union { int __i; float __f; }){ .__i = i }).__f) - -#define NAN __MAKE_FLOAT(0x7fc00000) -#define INFINITY __MAKE_FLOAT(0x7f800000) +#if 100*__GNUC__+__GNUC_MINOR__ >= 303 +#define NAN __builtin_nanf("") +#define INFINITY __builtin_inff() +#else +#define NAN (0.0f/0.0f) +#define INFINITY 1e40f +#endif #define HUGE_VALF INFINITY #define HUGE_VAL ((double)INFINITY) #define HUGE_VALL ((long double)INFINITY) -#define MAXFLOAT __MAKE_FLOAT(0x7f7fffff) - #define MATH_ERRNO 1 -#define MATH_EXCEPT 2 +#define MATH_ERREXCEPT 2 #define math_errhandling 2 -#define FP_ILOGBNAN (((unsigned)-1)>>1) -#define FP_ILOGB0 (~FP_ILOGBNAN) +#define FP_ILOGBNAN (-1-(int)(((unsigned)-1)>>1)) +#define FP_ILOGB0 FP_ILOGBNAN #define FP_NAN 0 #define FP_INFINITE 1 @@ -36,37 +36,87 @@ extern "C" { #define FP_SUBNORMAL 3 #define FP_NORMAL 4 -int __fpclassifyf(float); int __fpclassify(double); +int __fpclassifyf(float); int __fpclassifyl(long double); +static __inline unsigned __FLOAT_BITS(float __f) +{ + union {float __f; unsigned __i;} __u = {__f}; + return __u.__i; +} +static __inline unsigned long long __DOUBLE_BITS(double __f) +{ + union {double __f; unsigned long long __i;} __u = {__f}; + return __u.__i; +} + #define fpclassify(x) ( \ sizeof(x) == sizeof(float) ? __fpclassifyf(x) : \ sizeof(x) == sizeof(double) ? __fpclassify(x) : \ __fpclassifyl(x) ) -#define isinf(x) (fpclassify(x) == FP_INFINITE) -#define isnan(x) (fpclassify(x) == FP_NAN) -#define isnormal(x) (fpclassify(x) == FP_NORMAL) -#define isfinite(x) (fpclassify(x) > FP_INFINITE) - -#define isunordered(x,y) (isnan((x)) ? ((y),1) : isnan((y))) - -static inline int __isrel(long double __x, long double __y, int __rel) -{ - if (isunordered(__x, __y)) return 0; - if (__rel==-2) return __x < __y; - if (__rel==2) return __x > __y; - if (__rel==-1) return __x <= __y; - if (__rel==1) return __x >= __y; - return __x != __y; -} - -#define isless(x,y) __isrel((x), (y), -2) -#define islessequal(x,y) __isrel((x), (y), -1) -#define islessgreater(x,y) __isrel((x), (y), 0) -#define isgreaterequal(x,y) __isrel((x), (y), 1) -#define isgreater(x,y) __isrel((x), (y), 2) +#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) +__ISREL_DEF(less, <, double) +__ISREL_DEF(lessl, <, long double) +__ISREL_DEF(lessequalf, <=, float) +__ISREL_DEF(lessequal, <=, double) +__ISREL_DEF(lessequall, <=, long double) +__ISREL_DEF(lessgreaterf, !=, float) +__ISREL_DEF(lessgreater, !=, double) +__ISREL_DEF(lessgreaterl, !=, long double) +__ISREL_DEF(greaterf, >, float) +__ISREL_DEF(greater, >, double) +__ISREL_DEF(greaterl, >, long double) +__ISREL_DEF(greaterequalf, >=, float) +__ISREL_DEF(greaterequal, >=, double) +__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); @@ -165,8 +215,8 @@ float fmodf(float, float); long double fmodl(long double, long double); double frexp(double, int *); -float frexpf(float value, int *); -long double frexpl(long double value, int *); +float frexpf(float, int *); +long double frexpl(long double, int *); double hypot(double, double); float hypotf(float, float); @@ -296,7 +346,13 @@ double trunc(double); float truncf(float); long double truncl(long double); -#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) + +#if defined(_XOPEN_SOURCE) || defined(_BSD_SOURCE) +#undef MAXFLOAT +#define MAXFLOAT 3.40282347e+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 */ @@ -310,17 +366,53 @@ long double truncl(long double); #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); -extern int signgam; #endif -#ifdef _GNU_SOURCE +#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) +#define HUGE 3.40282347e+38F + 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