diff -r 000000000000 -r 76b1f169d9fe mingw-5.1.4/win32/include/math.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mingw-5.1.4/win32/include/math.h Fri Apr 03 17:16:45 2009 +0100 @@ -0,0 +1,848 @@ +/* + * math.h + * This file has no copyright assigned and is placed in the Public Domain. + * This file is a part of the mingw-runtime package. + * No warranty is given; refer to the file DISCLAIMER within the package. + * + * Mathematical functions. + * + */ + + +#ifndef _MATH_H_ +#define _MATH_H_ + +#if __GNUC__ >= 3 +#pragma GCC system_header +#endif + +/* All the headers include this file. */ +#include <_mingw.h> + +/* + * Types for the _exception structure. + */ + +#define _DOMAIN 1 /* domain error in argument */ +#define _SING 2 /* singularity */ +#define _OVERFLOW 3 /* range overflow */ +#define _UNDERFLOW 4 /* range underflow */ +#define _TLOSS 5 /* total loss of precision */ +#define _PLOSS 6 /* partial loss of precision */ + +/* + * Exception types with non-ANSI names for compatibility. + */ + +#ifndef __STRICT_ANSI__ +#ifndef _NO_OLDNAMES + +#define DOMAIN _DOMAIN +#define SING _SING +#define OVERFLOW _OVERFLOW +#define UNDERFLOW _UNDERFLOW +#define TLOSS _TLOSS +#define PLOSS _PLOSS + +#endif /* Not _NO_OLDNAMES */ +#endif /* Not __STRICT_ANSI__ */ + + +/* Traditional/XOPEN math constants (double precison) */ +#ifndef __STRICT_ANSI__ +#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 +#endif + +/* These are also defined in Mingw float.h; needed here as well to work + around GCC build issues. */ +#ifndef __STRICT_ANSI__ +#ifndef __MINGW_FPCLASS_DEFINED +#define __MINGW_FPCLASS_DEFINED 1 +/* IEEE 754 classication */ +#define _FPCLASS_SNAN 0x0001 /* Signaling "Not a Number" */ +#define _FPCLASS_QNAN 0x0002 /* Quiet "Not a Number" */ +#define _FPCLASS_NINF 0x0004 /* Negative Infinity */ +#define _FPCLASS_NN 0x0008 /* Negative Normal */ +#define _FPCLASS_ND 0x0010 /* Negative Denormal */ +#define _FPCLASS_NZ 0x0020 /* Negative Zero */ +#define _FPCLASS_PZ 0x0040 /* Positive Zero */ +#define _FPCLASS_PD 0x0080 /* Positive Denormal */ +#define _FPCLASS_PN 0x0100 /* Positive Normal */ +#define _FPCLASS_PINF 0x0200 /* Positive Infinity */ +#endif /* __MINGW_FPCLASS_DEFINED */ +#endif /* Not __STRICT_ANSI__ */ + +#ifndef RC_INVOKED + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * HUGE_VAL is returned by strtod when the value would overflow the + * representation of 'double'. There are other uses as well. + * + * __imp__HUGE is a pointer to the actual variable _HUGE in + * MSVCRT.DLL. If we used _HUGE directly we would get a pointer + * to a thunk function. + * + * NOTE: The CRTDLL version uses _HUGE_dll instead. + */ + +#if __MINGW_GNUC_PREREQ(3, 3) +#define HUGE_VAL __builtin_huge_val() +#else + +#ifndef __DECLSPEC_SUPPORTED + +#ifdef __MSVCRT__ +extern double* _imp___HUGE; +#define HUGE_VAL (*_imp___HUGE) +#else +/* CRTDLL */ +extern double* _imp___HUGE_dll; +#define HUGE_VAL (*_imp___HUGE_dll) +#endif + +#else /* __DECLSPEC_SUPPORTED */ + +#ifdef __MSVCRT__ +__MINGW_IMPORT double _HUGE; +#define HUGE_VAL _HUGE +#else +/* CRTDLL */ +__MINGW_IMPORT double _HUGE_dll; +#define HUGE_VAL _HUGE_dll +#endif + +#endif /* __DECLSPEC_SUPPORTED */ +#endif /* __MINGW_GNUC_PREREQ(3, 3) */ + + +struct _exception +{ + int type; + char *name; + double arg1; + double arg2; + double retval; +}; + +_CRTIMP double __cdecl sin (double); +_CRTIMP double __cdecl cos (double); +_CRTIMP double __cdecl tan (double); +_CRTIMP double __cdecl sinh (double); +_CRTIMP double __cdecl cosh (double); +_CRTIMP double __cdecl tanh (double); +_CRTIMP double __cdecl asin (double); +_CRTIMP double __cdecl acos (double); +_CRTIMP double __cdecl atan (double); +_CRTIMP double __cdecl atan2 (double, double); +_CRTIMP double __cdecl exp (double); +_CRTIMP double __cdecl log (double); +_CRTIMP double __cdecl log10 (double); +_CRTIMP double __cdecl pow (double, double); +_CRTIMP double __cdecl sqrt (double); +_CRTIMP double __cdecl ceil (double); +_CRTIMP double __cdecl floor (double); +_CRTIMP double __cdecl fabs (double); +_CRTIMP double __cdecl ldexp (double, int); +_CRTIMP double __cdecl frexp (double, int*); +_CRTIMP double __cdecl modf (double, double*); +_CRTIMP double __cdecl fmod (double, double); + +/* Excess precision when using a 64-bit mantissa for FPU math ops can + cause unexpected results with some of the MSVCRT math functions. For + example, unless the function return value is stored (truncating to + 53-bit mantissa), calls to pow with both x and y as integral values + sometimes produce a non-integral result. + One workaround is to reset the FPU env to 53-bit mantissa + by a call to fesetenv (FE_PC53_ENV). Amother is to force storage + of the return value of individual math functions using wrappers. + NB, using these wrappers will disable builtin math functions and + hence disable the folding of function results at compile time when + arguments are constant. */ + +#if 0 +#define __DEFINE_FLOAT_STORE_MATHFN_D1(fn1) \ +static __inline__ double \ +__float_store_ ## fn1 (double x) \ +{ \ + __volatile__ double res = (fn1) (x); \ + return res; \ +} + +#define __DEFINE_FLOAT_STORE_MATHFN_D2(fn2) \ +static __inline__ double \ +__float_store_ ## fn2 (double x, double y) \ +{ \ + __volatile__ double res = (fn2) (x, y); \ + return res; \ +} +#endif + +/* For example, here is how to force the result of the pow function + to be stored: */ +#if 0 +#undef pow +/* Define the ___float_store_pow function and use it instead of pow(). */ +__DEFINE_FLOAT_STORE_MATHFN_D2 (pow) +#define pow __float_store_pow +#endif + +#ifndef __STRICT_ANSI__ + +/* Complex number (for _cabs). This is the MS version. The ISO + C99 counterpart _Complex is an intrinsic type in GCC and + 'complex' is defined as a macro. See complex.h */ +struct _complex +{ + double x; /* Real part */ + double y; /* Imaginary part */ +}; + +_CRTIMP double __cdecl _cabs (struct _complex); + +_CRTIMP double __cdecl _hypot (double, double); +_CRTIMP double __cdecl _j0 (double); +_CRTIMP double __cdecl _j1 (double); +_CRTIMP double __cdecl _jn (int, double); +_CRTIMP double __cdecl _y0 (double); +_CRTIMP double __cdecl _y1 (double); +_CRTIMP double __cdecl _yn (int, double); +_CRTIMP int __cdecl _matherr (struct _exception *); + +/* These are also declared in Mingw float.h; needed here as well to work + around GCC build issues. */ +/* BEGIN FLOAT.H COPY */ +/* + * IEEE recommended functions + */ + +_CRTIMP double __cdecl _chgsign (double); +_CRTIMP double __cdecl _copysign (double, double); +_CRTIMP double __cdecl _logb (double); +_CRTIMP double __cdecl _nextafter (double, double); +_CRTIMP double __cdecl _scalb (double, long); + +_CRTIMP int __cdecl _finite (double); +_CRTIMP int __cdecl _fpclass (double); +_CRTIMP int __cdecl _isnan (double); + +/* END FLOAT.H COPY */ + + +/* + * Non-underscored versions of non-ANSI functions. + * These reside in liboldnames.a. + */ + +#if !defined (_NO_OLDNAMES) + +_CRTIMP double __cdecl j0 (double); +_CRTIMP double __cdecl j1 (double); +_CRTIMP double __cdecl jn (int, double); +_CRTIMP double __cdecl y0 (double); +_CRTIMP double __cdecl y1 (double); +_CRTIMP double __cdecl yn (int, double); + +_CRTIMP double __cdecl chgsign (double); +_CRTIMP double __cdecl scalb (double, long); +_CRTIMP int __cdecl finite (double); +_CRTIMP int __cdecl fpclass (double); + +#define FP_SNAN _FPCLASS_SNAN +#define FP_QNAN _FPCLASS_QNAN +#define FP_NINF _FPCLASS_NINF +#define FP_PINF _FPCLASS_PINF +#define FP_NDENORM _FPCLASS_ND +#define FP_PDENORM _FPCLASS_PD +#define FP_NZERO _FPCLASS_NZ +#define FP_PZERO _FPCLASS_PZ +#define FP_NNORM _FPCLASS_NN +#define FP_PNORM _FPCLASS_PN + +#endif /* Not _NO_OLDNAMES */ + +/* This require msvcr70.dll or higher. */ +#if __MSVCRT_VERSION__ >= 0x0700 +_CRTIMP int __cdecl _set_SSE2_enable (int); +#endif /* __MSVCRT_VERSION__ >= 0x0700 */ + + +#endif /* __STRICT_ANSI__ */ + + +#ifndef __NO_ISOCEXT +#if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) \ + || !defined __STRICT_ANSI__ || defined __cplusplus + +#if __MINGW_GNUC_PREREQ(3, 3) +#define HUGE_VALF __builtin_huge_valf() +#define HUGE_VALL __builtin_huge_vall() +#define INFINITY __builtin_inf() +#define NAN __builtin_nan("") +#else +extern const float __INFF; +#define HUGE_VALF __INFF +extern const long double __INFL; +#define HUGE_VALL __INFL +#define INFINITY HUGE_VALF +extern const double __QNAN; +#define NAN __QNAN +#endif /* __MINGW_GNUC_PREREQ(3, 3) */ + +/* 7.12.3.1 */ +/* + Return values for fpclassify. + These are based on Intel x87 fpu condition codes + in the high byte of status word and differ from + the return values for MS IEEE 754 extension _fpclass() +*/ +#define FP_NAN 0x0100 +#define FP_NORMAL 0x0400 +#define FP_INFINITE (FP_NAN | FP_NORMAL) +#define FP_ZERO 0x4000 +#define FP_SUBNORMAL (FP_NORMAL | FP_ZERO) +/* 0x0200 is signbit mask */ + + +/* + We can't inline float or double, because we want to ensure truncation + to semantic type before classification. + (A normal long double value might become subnormal when + converted to double, and zero when converted to float.) +*/ + +extern int __cdecl __fpclassifyf (float); +extern int __cdecl __fpclassify (double); + +__CRT_INLINE int __cdecl __fpclassifyl (long double x){ + unsigned short sw; + __asm__ ("fxam; fstsw %%ax;" : "=a" (sw): "t" (x)); + return sw & (FP_NAN | FP_NORMAL | FP_ZERO ); +} + +#define fpclassify(x) (sizeof (x) == sizeof (float) ? __fpclassifyf (x) \ + : sizeof (x) == sizeof (double) ? __fpclassify (x) \ + : __fpclassifyl (x)) + +/* 7.12.3.2 */ +#define isfinite(x) ((fpclassify(x) & FP_NAN) == 0) + +/* 7.12.3.3 */ +#define isinf(x) (fpclassify(x) == FP_INFINITE) + +/* 7.12.3.4 */ +/* We don't need to worry about truncation here: + A NaN stays a NaN. */ + +__CRT_INLINE int __cdecl __isnan (double _x) +{ + unsigned short sw; + __asm__ ("fxam;" + "fstsw %%ax": "=a" (sw) : "t" (_x)); + return (sw & (FP_NAN | FP_NORMAL | FP_INFINITE | FP_ZERO | FP_SUBNORMAL)) + == FP_NAN; +} + +__CRT_INLINE int __cdecl __isnanf (float _x) +{ + unsigned short sw; + __asm__ ("fxam;" + "fstsw %%ax": "=a" (sw) : "t" (_x)); + return (sw & (FP_NAN | FP_NORMAL | FP_INFINITE | FP_ZERO | FP_SUBNORMAL)) + == FP_NAN; +} + +__CRT_INLINE int __cdecl __isnanl (long double _x) +{ + unsigned short sw; + __asm__ ("fxam;" + "fstsw %%ax": "=a" (sw) : "t" (_x)); + return (sw & (FP_NAN | FP_NORMAL | FP_INFINITE | FP_ZERO | FP_SUBNORMAL)) + == FP_NAN; +} + + +#define isnan(x) (sizeof (x) == sizeof (float) ? __isnanf (x) \ + : sizeof (x) == sizeof (double) ? __isnan (x) \ + : __isnanl (x)) + +/* 7.12.3.5 */ +#define isnormal(x) (fpclassify(x) == FP_NORMAL) + +/* 7.12.3.6 The signbit macro */ +__CRT_INLINE int __cdecl __signbit (double x) { + unsigned short stw; + __asm__ ( "fxam; fstsw %%ax;": "=a" (stw) : "t" (x)); + return (stw & 0x0200) != 0; +} + +__CRT_INLINE int __cdecl __signbitf (float x) { + unsigned short stw; + __asm__ ("fxam; fstsw %%ax;": "=a" (stw) : "t" (x)); + return (stw & 0x0200) != 0; +} + +__CRT_INLINE int __cdecl __signbitl (long double x) { + unsigned short stw; + __asm__ ("fxam; fstsw %%ax;": "=a" (stw) : "t" (x)); + return (stw & 0x0200) != 0; +} + +#define signbit(x) (sizeof (x) == sizeof (float) ? __signbitf (x) \ + : sizeof (x) == sizeof (double) ? __signbit (x) \ + : __signbitl (x)) + +/* 7.12.4 Trigonometric functions: Double in C89 */ +extern float __cdecl sinf (float); +extern long double __cdecl sinl (long double); + +extern float __cdecl cosf (float); +extern long double __cdecl cosl (long double); + +extern float __cdecl tanf (float); +extern long double __cdecl tanl (long double); + +extern float __cdecl asinf (float); +extern long double __cdecl asinl (long double); + +extern float __cdecl acosf (float); +extern long double __cdecl acosl (long double); + +extern float __cdecl atanf (float); +extern long double __cdecl atanl (long double); + +extern float __cdecl atan2f (float, float); +extern long double __cdecl atan2l (long double, long double); + +/* 7.12.5 Hyperbolic functions: Double in C89 */ +__CRT_INLINE float __cdecl sinhf (float x) + {return (float) sinh (x);} +extern long double __cdecl sinhl (long double); + +__CRT_INLINE float __cdecl coshf (float x) + {return (float) cosh (x);} +extern long double __cdecl coshl (long double); + +__CRT_INLINE float __cdecl tanhf (float x) + {return (float) tanh (x);} +extern long double __cdecl tanhl (long double); + +/* Inverse hyperbolic trig functions */ +/* 7.12.5.1 */ +extern double __cdecl acosh (double); +extern float __cdecl acoshf (float); +extern long double __cdecl acoshl (long double); + +/* 7.12.5.2 */ +extern double __cdecl asinh (double); +extern float __cdecl asinhf (float); +extern long double __cdecl asinhl (long double); + +/* 7.12.5.3 */ +extern double __cdecl atanh (double); +extern float __cdecl atanhf (float); +extern long double __cdecl atanhl (long double); + +/* Exponentials and logarithms */ +/* 7.12.6.1 Double in C89 */ +__CRT_INLINE float __cdecl expf (float x) + {return (float) exp (x);} +extern long double __cdecl expl (long double); + +/* 7.12.6.2 */ +extern double __cdecl exp2(double); +extern float __cdecl exp2f(float); +extern long double __cdecl exp2l(long double); + +/* 7.12.6.3 The expm1 functions */ +/* TODO: These could be inlined */ +extern double __cdecl expm1(double); +extern float __cdecl expm1f(float); +extern long double __cdecl expm1l(long double); + +/* 7.12.6.4 Double in C89 */ +__CRT_INLINE float __cdecl frexpf (float x, int* expn) + {return (float) frexp (x, expn);} +extern long double __cdecl frexpl (long double, int*); + +/* 7.12.6.5 */ +#define FP_ILOGB0 ((int)0x80000000) +#define FP_ILOGBNAN ((int)0x80000000) +extern int __cdecl ilogb (double); +extern int __cdecl ilogbf (float); +extern int __cdecl ilogbl (long double); + +/* 7.12.6.6 Double in C89 */ +__CRT_INLINE float __cdecl ldexpf (float x, int expn) + {return (float) ldexp (x, expn);} +extern long double __cdecl ldexpl (long double, int); + +/* 7.12.6.7 Double in C89 */ +extern float __cdecl logf (float); +extern long double __cdecl logl (long double); + +/* 7.12.6.8 Double in C89 */ +extern float __cdecl log10f (float); +extern long double __cdecl log10l (long double); + +/* 7.12.6.9 */ +extern double __cdecl log1p(double); +extern float __cdecl log1pf(float); +extern long double __cdecl log1pl(long double); + +/* 7.12.6.10 */ +extern double __cdecl log2 (double); +extern float __cdecl log2f (float); +extern long double __cdecl log2l (long double); + +/* 7.12.6.11 */ +extern double __cdecl logb (double); +extern float __cdecl logbf (float); +extern long double __cdecl logbl (long double); + +/* Inline versions. GCC-4.0+ can do a better fast-math optimization + with __builtins. */ +#if !(__MINGW_GNUC_PREREQ (4, 0) && defined __FAST_MATH__ ) +__CRT_INLINE double __cdecl logb (double x) +{ + double res; + __asm__ ("fxtract\n\t" + "fstp %%st" : "=t" (res) : "0" (x)); + return res; +} + +__CRT_INLINE float __cdecl logbf (float x) +{ + float res; + __asm__ ("fxtract\n\t" + "fstp %%st" : "=t" (res) : "0" (x)); + return res; +} + +__CRT_INLINE long double __cdecl logbl (long double x) +{ + long double res; + __asm__ ("fxtract\n\t" + "fstp %%st" : "=t" (res) : "0" (x)); + return res; +} +#endif /* !defined __FAST_MATH__ || !__MINGW_GNUC_PREREQ (4, 0) */ + +/* 7.12.6.12 Double in C89 */ +extern float __cdecl modff (float, float*); +extern long double __cdecl modfl (long double, long double*); + +/* 7.12.6.13 */ +extern double __cdecl scalbn (double, int); +extern float __cdecl scalbnf (float, int); +extern long double __cdecl scalbnl (long double, int); + +extern double __cdecl scalbln (double, long); +extern float __cdecl scalblnf (float, long); +extern long double __cdecl scalblnl (long double, long); + +/* 7.12.7.1 */ +/* Implementations adapted from Cephes versions */ +extern double __cdecl cbrt (double); +extern float __cdecl cbrtf (float); +extern long double __cdecl cbrtl (long double); + +/* 7.12.7.2 The fabs functions: Double in C89 */ +extern float __cdecl fabsf (float x); +extern long double __cdecl fabsl (long double x); + +/* 7.12.7.3 */ +extern double __cdecl hypot (double, double); /* in libmoldname.a */ +__CRT_INLINE float __cdecl hypotf (float x, float y) + { return (float) hypot (x, y);} +extern long double __cdecl hypotl (long double, long double); + +/* 7.12.7.4 The pow functions. Double in C89 */ +__CRT_INLINE float __cdecl powf (float x, float y) + {return (float) pow (x, y);} +extern long double __cdecl powl (long double, long double); + +/* 7.12.7.5 The sqrt functions. Double in C89. */ +extern float __cdecl sqrtf (float); +extern long double __cdecl sqrtl (long double); + +/* 7.12.8.1 The erf functions */ +extern double __cdecl erf (double); +extern float __cdecl erff (float); +extern long double __cdecl erfl (long double); + +/* 7.12.8.2 The erfc functions */ +extern double __cdecl erfc (double); +extern float __cdecl erfcf (float); +extern long double __cdecl erfcl (long double); + +/* 7.12.8.3 The lgamma functions */ +extern double __cdecl lgamma (double); +extern float __cdecl lgammaf (float); +extern long double __cdecl lgammal (long double); + +/* 7.12.8.4 The tgamma functions */ +extern double __cdecl tgamma (double); +extern float __cdecl tgammaf (float); +extern long double __cdecl tgammal (long double); + +/* 7.12.9.1 Double in C89 */ +extern float __cdecl ceilf (float); +extern long double __cdecl ceill (long double); + +/* 7.12.9.2 Double in C89 */ +extern float __cdecl floorf (float); +extern long double __cdecl floorl (long double); + +/* 7.12.9.3 */ +extern double __cdecl nearbyint ( double); +extern float __cdecl nearbyintf (float); +extern long double __cdecl nearbyintl (long double); + +/* 7.12.9.4 */ +/* round, using fpu control word settings */ +extern double __cdecl rint (double); +extern float __cdecl rintf (float); +extern long double __cdecl rintl (long double); + +/* 7.12.9.5 */ +extern long __cdecl lrint (double); +extern long __cdecl lrintf (float); +extern long __cdecl lrintl (long double); + +extern long long __cdecl llrint (double); +extern long long __cdecl llrintf (float); +extern long long __cdecl llrintl (long double); + +/* Inline versions of above. + GCC 4.0+ can do a better fast-math job with __builtins. */ +#if !(__MINGW_GNUC_PREREQ (4, 0) && defined __FAST_MATH__ ) +__CRT_INLINE double __cdecl rint (double x) +{ + double retval; + __asm__ ("frndint;": "=t" (retval) : "0" (x)); + return retval; +} + +__CRT_INLINE float __cdecl rintf (float x) +{ + float retval; + __asm__ ("frndint;" : "=t" (retval) : "0" (x) ); + return retval; +} + +__CRT_INLINE long double __cdecl rintl (long double x) +{ + long double retval; + __asm__ ("frndint;" : "=t" (retval) : "0" (x) ); + return retval; +} + +__CRT_INLINE long __cdecl lrint (double x) +{ + long retval; + __asm__ __volatile__ + ("fistpl %0" : "=m" (retval) : "t" (x) : "st"); + return retval; +} + +__CRT_INLINE long __cdecl lrintf (float x) +{ + long retval; + __asm__ __volatile__ + ("fistpl %0" : "=m" (retval) : "t" (x) : "st"); + return retval; +} + +__CRT_INLINE long __cdecl lrintl (long double x) +{ + long retval; + __asm__ __volatile__ + ("fistpl %0" : "=m" (retval) : "t" (x) : "st"); + return retval; +} + +__CRT_INLINE long long __cdecl llrint (double x) +{ + long long retval; + __asm__ __volatile__ + ("fistpll %0" : "=m" (retval) : "t" (x) : "st"); + return retval; +} + +__CRT_INLINE long long __cdecl llrintf (float x) +{ + long long retval; + __asm__ __volatile__ + ("fistpll %0" : "=m" (retval) : "t" (x) : "st"); + return retval; +} + +__CRT_INLINE long long __cdecl llrintl (long double x) +{ + long long retval; + __asm__ __volatile__ + ("fistpll %0" : "=m" (retval) : "t" (x) : "st"); + return retval; +} +#endif /* !__FAST_MATH__ || !__MINGW_GNUC_PREREQ (4,0) */ + +/* 7.12.9.6 */ +/* round away from zero, regardless of fpu control word settings */ +extern double __cdecl round (double); +extern float __cdecl roundf (float); +extern long double __cdecl roundl (long double); + +/* 7.12.9.7 */ +extern long __cdecl lround (double); +extern long __cdecl lroundf (float); +extern long __cdecl lroundl (long double); + +extern long long __cdecl llround (double); +extern long long __cdecl llroundf (float); +extern long long __cdecl llroundl (long double); + +/* 7.12.9.8 */ +/* round towards zero, regardless of fpu control word settings */ +extern double __cdecl trunc (double); +extern float __cdecl truncf (float); +extern long double __cdecl truncl (long double); + +/* 7.12.10.1 Double in C89 */ +extern float __cdecl fmodf (float, float); +extern long double __cdecl fmodl (long double, long double); + +/* 7.12.10.2 */ +extern double __cdecl remainder (double, double); +extern float __cdecl remainderf (float, float); +extern long double __cdecl remainderl (long double, long double); + +/* 7.12.10.3 */ +extern double __cdecl remquo(double, double, int *); +extern float __cdecl remquof(float, float, int *); +extern long double __cdecl remquol(long double, long double, int *); + +/* 7.12.11.1 */ +extern double __cdecl copysign (double, double); /* in libmoldname.a */ +extern float __cdecl copysignf (float, float); +extern long double __cdecl copysignl (long double, long double); + +/* 7.12.11.2 Return a NaN */ +extern double __cdecl nan(const char *tagp); +extern float __cdecl nanf(const char *tagp); +extern long double __cdecl nanl(const char *tagp); + +#ifndef __STRICT_ANSI__ +#define _nan() nan("") +#define _nanf() nanf("") +#define _nanl() nanl("") +#endif + +/* 7.12.11.3 */ +extern double __cdecl nextafter (double, double); /* in libmoldname.a */ +extern float __cdecl nextafterf (float, float); +extern long double __cdecl nextafterl (long double, long double); + +/* 7.12.11.4 The nexttoward functions */ +extern double __cdecl nexttoward (double, long double); +extern float __cdecl nexttowardf (float, long double); +extern long double __cdecl nexttowardl (long double, long double); + +/* 7.12.12.1 */ +/* x > y ? (x - y) : 0.0 */ +extern double __cdecl fdim (double x, double y); +extern float __cdecl fdimf (float x, float y); +extern long double __cdecl fdiml (long double x, long double y); + +/* fmax and fmin. + NaN arguments are treated as missing data: if one argument is a NaN + and the other numeric, then these functions choose the numeric + value. */ + +/* 7.12.12.2 */ +extern double __cdecl fmax (double, double); +extern float __cdecl fmaxf (float, float); +extern long double __cdecl fmaxl (long double, long double); + +/* 7.12.12.3 */ +extern double __cdecl fmin (double, double); +extern float __cdecl fminf (float, float); +extern long double __cdecl fminl (long double, long double); + +/* 7.12.13.1 */ +/* return x * y + z as a ternary op */ +extern double __cdecl fma (double, double, double); +extern float __cdecl fmaf (float, float, float); +extern long double __cdecl fmal (long double, long double, long double); + + +/* 7.12.14 */ +/* + * With these functions, comparisons involving quiet NaNs set the FP + * condition code to "unordered". The IEEE floating-point spec + * dictates that the result of floating-point comparisons should be + * false whenever a NaN is involved, with the exception of the != op, + * which always returns true: yes, (NaN != NaN) is true). + */ + +#if __GNUC__ >= 3 + +#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 +/* helper */ +__CRT_INLINE int __cdecl +__fp_unordered_compare (long double x, long double y){ + unsigned short retval; + __asm__ ("fucom %%st(1);" + "fnstsw;": "=a" (retval) : "t" (x), "u" (y)); + return retval; +} + +#define isgreater(x, y) ((__fp_unordered_compare(x, y) \ + & 0x4500) == 0) +#define isless(x, y) ((__fp_unordered_compare (y, x) \ + & 0x4500) == 0) +#define isgreaterequal(x, y) ((__fp_unordered_compare (x, y) \ + & FP_INFINITE) == 0) +#define islessequal(x, y) ((__fp_unordered_compare(y, x) \ + & FP_INFINITE) == 0) +#define islessgreater(x, y) ((__fp_unordered_compare(x, y) \ + & FP_SUBNORMAL) == 0) +#define isunordered(x, y) ((__fp_unordered_compare(x, y) \ + & 0x4500) == 0x4500) + +#endif + + +#endif /* __STDC_VERSION__ >= 199901L */ +#endif /* __NO_ISOCEXT */ + + +#ifdef __cplusplus +} +#endif +#endif /* Not RC_INVOKED */ + + +#endif /* Not _MATH_H_ */