diff --git a/fdlibm.h b/fdlibm.h --- a/fdlibm.h +++ b/fdlibm.h @@ -12,504 +12,66 @@ /* * from: @(#)fdlibm.h 5.1 93/09/24 * $FreeBSD$ */ #ifndef _MATH_H_ #define _MATH_H_ -#include -#include -#include - -/* - * 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) -#define __MATH_BUILTIN_CONSTANTS -#endif - -#if __GNUC_PREREQ__(3, 0) -#define __MATH_BUILTIN_RELOPS -#endif - -#ifdef __MATH_BUILTIN_CONSTANTS -#define HUGE_VAL __builtin_huge_val() -#else -#define HUGE_VAL (__infinity.__ud) -#endif - -#if __ISO_C_VISIBLE >= 1999 -#define FP_ILOGB0 (-__INT_MAX) -#define FP_ILOGBNAN __INT_MAX - -#ifdef __MATH_BUILTIN_CONSTANTS -#define HUGE_VALF __builtin_huge_valf() -#define HUGE_VALL __builtin_huge_vall() -#define INFINITY __builtin_inff() -#define NAN __builtin_nanf("") -#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 - -#define FP_FAST_FMAF 1 - -/* 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 - -#if __STDC_VERSION__ >= 201112L || __has_extension(c_generic_selections) -#define __fp_type_select(x, f, d, ld) __extension__ _Generic((x), \ - float: f(x), \ - double: d(x), \ - long double: ld(x)) -#elif __GNUC_PREREQ__(3, 1) && !defined(__cplusplus) -#define __fp_type_select(x, f, d, ld) __builtin_choose_expr( \ - __builtin_types_compatible_p(__typeof(x), long double), ld(x), \ - __builtin_choose_expr( \ - __builtin_types_compatible_p(__typeof(x), double), d(x), \ - __builtin_choose_expr( \ - __builtin_types_compatible_p(__typeof(x), float), f(x), (void)0))) -#else -#define __fp_type_select(x, f, d, ld) \ - ((sizeof(x) == sizeof(float)) ? f(x) \ - : (sizeof(x) == sizeof(double)) ? d(x) \ - : ld(x)) -#endif - -#define fpclassify(x) \ - __fp_type_select(x, __fpclassifyf, __fpclassifyd, __fpclassifyl) -#define isfinite(x) __fp_type_select(x, __isfinitef, __isfinite, __isfinitel) -#define isinf(x) __fp_type_select(x, __isinff, __isinf, __isinfl) -#define isnan(x) \ - __fp_type_select(x, __inline_isnanf, __inline_isnan, __inline_isnanl) -#define isnormal(x) __fp_type_select(x, __isnormalf, __isnormal, __isnormall) - -#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) __fp_type_select(x, __signbitf, __signbit, __signbitl) - -typedef __double_t double_t; -typedef __float_t float_t; -#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) __pure2; -int __fpclassifyf(float) __pure2; -int __fpclassifyl(long double) __pure2; -int __isfinitef(float) __pure2; -int __isfinite(double) __pure2; -int __isfinitel(long double) __pure2; -int __isinff(float) __pure2; -int __isinf(double) __pure2; -int __isinfl(long double) __pure2; -int __isnormalf(float) __pure2; -int __isnormal(double) __pure2; -int __isnormall(long double) __pure2; -int __signbit(double) __pure2; -int __signbitf(float) __pure2; -int __signbitl(long double) __pure2; - -static __inline int -__inline_isnan(__const double __x) -{ - - return (__x != __x); -} - -static __inline int -__inline_isnanf(__const float __x) -{ - - return (__x != __x); -} - -static __inline int -__inline_isnanl(__const long double __x) -{ - - return (__x != __x); -} - -/* - * Define the following aliases, for compatibility with glibc and CUDA. - */ -#define __isnan __inline_isnan -#define __isnanf __inline_isnanf - -/* - * Version 2 of the Single UNIX Specification (UNIX98) defined isnan() and - * isinf() as functions taking double. C99, and the subsequent POSIX revisions - * (SUSv3, POSIX.1-2001, define it as a macro that accepts any real floating - * point type. If we are targeting SUSv2 and C99 or C11 (or C++11) then we - * expose the newer definition, assuming that the language spec takes - * precedence over the operating system interface spec. - */ -#if __XSI_VISIBLE > 0 && __XSI_VISIBLE < 600 && __ISO_C_VISIBLE < 1999 -#undef isinf -#undef isnan -int isinf(double); -int isnan(double); -#endif - double acos(double); double asin(double); double atan(double); double atan2(double, double); double cos(double); double sin(double); double tan(double); double cosh(double); double sinh(double); double tanh(double); double exp(double); -double frexp(double, int *); /* fundamentally !__pure2 */ -double ldexp(double, int); double log(double); double log10(double); -double modf(double, double *); /* fundamentally !__pure2 */ double pow(double, double); -double sqrt(double); double ceil(double); -double fabs(double) __pure2; +double fabs(double); double floor(double); -double fmod(double, double); -/* - * These functions are not in C90. - */ -#if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 || __XSI_VISIBLE double acosh(double); double asinh(double); double atanh(double); double cbrt(double); -double erf(double); -double erfc(double); double exp2(double); double expm1(double); -double fma(double, double, double); double hypot(double, double); -int ilogb(double) __pure2; -double lgamma(double); -long long llrint(double); -long long llround(double); double log1p(double); double log2(double); -double logb(double); -long lrint(double); -long lround(double); -double nan(const char *) __pure2; -double nextafter(double, double); -double remainder(double, double); -double remquo(double, double, int *); double rint(double); -#endif /* __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 || __XSI_VISIBLE */ - -#if __BSD_VISIBLE || __XSI_VISIBLE -double j0(double); -double j1(double); -double jn(int, double); -double y0(double); -double y1(double); -double yn(int, double); - -#if __XSI_VISIBLE <= 500 || __BSD_VISIBLE -double gamma(double); -#endif - -#if __XSI_VISIBLE <= 600 || __BSD_VISIBLE -double scalb(double, double); -#endif -#endif /* __BSD_VISIBLE || __XSI_VISIBLE */ - -#if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 -double copysign(double, double) __pure2; -double fdim(double, double); -double fmax(double, double) __pure2; -double fmin(double, double) __pure2; +double copysign(double, double); double nearbyint(double); -double round(double); -double scalbln(double, long); double scalbn(double, int); -double tgamma(double); double trunc(double); -#endif - -/* - * BSD math library entry points - */ -#if __BSD_VISIBLE -double drem(double, double); -int finite(double) __pure2; -int isnanf(float) __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 *); -double lgamma_r(double, int *); - -/* - * IEEE Test Vector - */ -double significand(double); -#endif /* __BSD_VISIBLE */ - -/* float versions of ANSI/POSIX functions */ -#if __ISO_C_VISIBLE >= 1999 float acosf(float); float asinf(float); float atanf(float); -float atan2f(float, float); float cosf(float); float sinf(float); float tanf(float); - -float coshf(float); -float sinhf(float); -float tanhf(float); - float exp2f(float); float expf(float); -float expm1f(float); -float frexpf(float, int *); /* fundamentally !__pure2 */ -int ilogbf(float) __pure2; -float ldexpf(float, int); -float log10f(float); -float log1pf(float); -float log2f(float); float logf(float); -float modff(float, float *); /* fundamentally !__pure2 */ - float powf(float, float); float sqrtf(float); float ceilf(float); -float fabsf(float) __pure2; +float fabsf(float); float floorf(float); -float fmodf(float, float); -float roundf(float); - -float erff(float); -float erfcf(float); -float hypotf(float, float); -float lgammaf(float); -float tgammaf(float); - -float acoshf(float); -float asinhf(float); -float atanhf(float); -float cbrtf(float); -float logbf(float); -float copysignf(float, float) __pure2; -long long llrintf(float); -long long llroundf(float); -long lrintf(float); -long lroundf(float); -float nanf(const char *) __pure2; float nearbyintf(float); -float nextafterf(float, float); -float remainderf(float, float); -float remquof(float, float, int *); float rintf(float); -float scalblnf(float, long); float scalbnf(float, int); float truncf(float); -float fdimf(float, float); -float fmaf(float, float, float); -float fmaxf(float, float) __pure2; -float fminf(float, float) __pure2; -#endif - -/* - * float versions of BSD math library entry points - */ -#if __BSD_VISIBLE -float dremf(float, float); -int finitef(float) __pure2; -float gammaf(float); -float j0f(float); -float j1f(float); -float jnf(int, float); -float scalbf(float, float); -float y0f(float); -float y1f(float); -float ynf(int, float); - -/* - * 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 *); -float lgammaf_r(float, int *); - -/* - * float version of IEEE Test Vector - */ -float significandf(float); -#endif /* __BSD_VISIBLE */ - -/* - * long double versions of ISO/POSIX math functions - */ -#if __ISO_C_VISIBLE >= 1999 -long double acoshl(long double); -long double acosl(long double); -long double asinhl(long double); -long double asinl(long double); -long double atan2l(long double, long double); -long double atanhl(long double); -long double atanl(long double); -long double cbrtl(long double); -long double ceill(long double); -long double copysignl(long double, long double) __pure2; -long double coshl(long double); -long double cosl(long double); -long double erfcl(long double); -long double erfl(long double); -long double exp2l(long double); -long double expl(long double); -long double expm1l(long double); -long double fabsl(long double) __pure2; -long double fdiml(long double, long double); -long double floorl(long double); -long double fmal(long double, long double, long double); -long double fmaxl(long double, long double) __pure2; -long double fminl(long double, long double) __pure2; -long double fmodl(long double, long double); -long double frexpl(long double, int *); /* fundamentally !__pure2 */ -long double hypotl(long double, long double); -int ilogbl(long double) __pure2; -long double ldexpl(long double, int); -long double lgammal(long double); -long long llrintl(long double); -long long llroundl(long double); -long double log10l(long double); -long double log1pl(long double); -long double log2l(long double); -long double logbl(long double); -long double logl(long double); -long lrintl(long double); -long lroundl(long double); -long double modfl(long double, long double *); /* fundamentally !__pure2 */ -long double nanl(const char *) __pure2; -long double nearbyintl(long double); -long double nextafterl(long double, long double); -double nexttoward(double, long double); -float nexttowardf(float, long double); -long double nexttowardl(long double, long double); -long double powl(long double, long double); -long double remainderl(long double, long double); -long double remquol(long double, long double, int *); -long double rintl(long double); -long double roundl(long double); -long double scalblnl(long double, long); -long double scalbnl(long double, int); -long double sinhl(long double); -long double sinl(long double); -long double sqrtl(long double); -long double tanhl(long double); -long double tanl(long double); -long double tgammal(long double); -long double truncl(long double); -#endif /* __ISO_C_VISIBLE >= 1999 */ - -#if __BSD_VISIBLE -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 cospi(double); -float cospif(float); -long double cospil(long double); -double sinpi(double); -float sinpif(float); -long double sinpil(long double); -double tanpi(double); -float tanpif(float); -long double tanpil(long double); -#endif - -__END_DECLS - #endif /* !_MATH_H_ */