mirror of
https://github.com/reactos/reactos.git
synced 2024-07-14 00:25:05 +00:00
modified include/crt/math.h
Ported <math.h> to Visual C++ Fixed some miscellaneous stupidity. I see Arch has been committing to MinGW-W64 too svn path=/trunk/; revision=41440
This commit is contained in:
KJK::Hyperion
parent
abdf1ae486
commit
5632264d33
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@ -100,7 +100,7 @@ extern "C" {
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_CRTIMP double __cdecl _y1(double _X);
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_CRTIMP double __cdecl _yn(int _X,double _Y);
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#if(defined(_X86_) && !defined(__x86_64))
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#if defined(__i386__) || defined(_M_IX86)
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_CRTIMP int __cdecl _set_SSE2_enable(int _Flag);
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/* from libmingwex */
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float __cdecl _hypotf(float _X,float _Y);
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@ -131,7 +131,7 @@ extern "C" {
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float __cdecl fmodf(float _X,float _Y);
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float __cdecl _hypotf(float _X,float _Y);
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float __cdecl fabsf(float _X);
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#if !defined(__ia64__)
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#if !defined(__ia64__) && !defined(_M_IA64)
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/* from libmingwex */
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float __cdecl _copysignf (float _Number,float _Sign);
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float __cdecl _chgsignf (float _X);
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@ -142,57 +142,52 @@ extern "C" {
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int __cdecl _fpclassf(float _X);
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#endif
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#ifndef __cplusplus
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#if defined(__GNUC__)
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#define __fabs(x, res) \
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__asm__ ("fabs;" : "=t" (res) : "0" (x))
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#elif defined(_MSC_VER)
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#define __fabs(x, res) \
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__asm { fld [(x)] } \
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__asm { fabs } \
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__asm { fstp [(res)] }
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#endif
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__CRT_INLINE long double __cdecl fabsl (long double x)
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{
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long double res;
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__asm__ ("fabs;" : "=t" (res) : "0" (x));
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__fabs(x, res);
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return res;
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}
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#define _hypotl(x,y) ((long double)_hypot((double)(x),(double)(y)))
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#define _matherrl _matherr
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__CRT_INLINE long double _chgsignl(long double _Number) { return _chgsign((double)(_Number)); }
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__CRT_INLINE long double _copysignl(long double _Number,long double _Sign) { return _copysign((double)(_Number),(double)(_Sign)); }
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__CRT_INLINE long double _hypotl(long double _X,long double _Y) { return _hypot((double)(_X),(double)(_Y)); }
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__CRT_INLINE float frexpf(float _X,int *_Y) { return ((float)frexp((double)_X,_Y)); }
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#if !defined (__ia64__)
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#if !defined (__ia64__) && !defined (_M_IA64)
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__CRT_INLINE float __cdecl fabsf (float x)
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{
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float res;
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__asm__ ("fabs;" : "=t" (res) : "0" (x));
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__fabs(x, res);
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return res;
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}
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__CRT_INLINE float __cdecl ldexpf (float x, int expn) { return (float) ldexp (x, expn); }
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#endif
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#else
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// cplusplus
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__CRT_INLINE long double __cdecl fabsl (long double x)
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{
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long double res;
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__asm__ ("fabs;" : "=t" (res) : "0" (x));
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return res;
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}
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#define _matherrl _matherr
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__CRT_INLINE long double modfl(long double _X,long double *_Y) {
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double _Di,_Df = modf((double)_X,&_Di);
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*_Y = (long double)_Di;
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return (_Df);
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}
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__CRT_INLINE long double _chgsignl(long double _Number) { return _chgsign(static_cast<double>(_Number)); }
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__CRT_INLINE long double _copysignl(long double _Number,long double _Sign) { return _copysign(static_cast<double>(_Number),static_cast<double>(_Sign)); }
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__CRT_INLINE float frexpf(float _X,int *_Y) { return ((float)frexp((double)_X,_Y)); }
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#ifndef __ia64__
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__CRT_INLINE float __cdecl fabsf (float x)
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{
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float res;
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__asm__ ("fabs;" : "=t" (res) : "0" (x));
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return res;
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}
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__CRT_INLINE float __cdecl ldexpf (float x, int expn) { return (float) ldexp (x, expn); }
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#endif
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#endif
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#ifndef __x86_64
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#if !defined(__x86_64) && !defined(_M_AMD64)
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__CRT_INLINE float acosf(float _X) { return ((float)acos((double)_X)); }
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__CRT_INLINE float asinf(float _X) { return ((float)asin((double)_X)); }
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__CRT_INLINE float atanf(float _X) { return ((float)atan((double)_X)); }
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@ -255,6 +250,21 @@ extern "C" {
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#define FP_SUBNORMAL (FP_NORMAL | FP_ZERO)
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/* 0x0200 is signbit mask */
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#if defined(__GNUC__)
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#define __fxam(x, sw) \
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__asm__ ("fxam; fstsw %%ax;" : "=a" (sw): "t" (x))
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#elif defined(_MSC_VER)
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#define __fxam(x, sw) \
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__asm { fld [(x)] } \
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__asm { fxam } \
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__asm { wait } \
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__asm { fnstsw [(sw)] } \
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__asm { fstp st(0) }
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#endif
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/*
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We can't __CRT_INLINE float or double, because we want to ensure truncation
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@ -268,7 +278,7 @@ extern "C" {
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__CRT_INLINE int __cdecl __fpclassifyl (long double x){
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unsigned short sw;
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__asm__ ("fxam; fstsw %%ax;" : "=a" (sw): "t" (x));
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__fxam(x, sw);
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return sw & (FP_NAN | FP_NORMAL | FP_ZERO );
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}
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@ -310,8 +320,7 @@ __CRT_INLINE int isinf (double d) {
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__CRT_INLINE int __cdecl __isnan (double _x)
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{
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unsigned short sw;
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__asm__ ("fxam;"
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"fstsw %%ax": "=a" (sw) : "t" (_x));
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__fxam(_x, sw);
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return (sw & (FP_NAN | FP_NORMAL | FP_INFINITE | FP_ZERO | FP_SUBNORMAL))
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== FP_NAN;
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}
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@ -319,8 +328,7 @@ __CRT_INLINE int isinf (double d) {
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__CRT_INLINE int __cdecl __isnanf (float _x)
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{
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unsigned short sw;
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__asm__ ("fxam;"
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"fstsw %%ax": "=a" (sw) : "t" (_x));
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__fxam(_x, sw);
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return (sw & (FP_NAN | FP_NORMAL | FP_INFINITE | FP_ZERO | FP_SUBNORMAL))
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== FP_NAN;
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}
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@ -328,8 +336,7 @@ __CRT_INLINE int isinf (double d) {
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__CRT_INLINE int __cdecl __isnanl (long double _x)
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{
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unsigned short sw;
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__asm__ ("fxam;"
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"fstsw %%ax": "=a" (sw) : "t" (_x));
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__fxam(_x, sw);
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return (sw & (FP_NAN | FP_NORMAL | FP_INFINITE | FP_ZERO | FP_SUBNORMAL))
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== FP_NAN;
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}
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@ -345,19 +352,19 @@ __CRT_INLINE int isinf (double d) {
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/* 7.12.3.6 The signbit macro */
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__CRT_INLINE int __cdecl __signbit (double x) {
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unsigned short stw;
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__asm__ ( "fxam; fstsw %%ax;": "=a" (stw) : "t" (x));
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__fxam(x, stw);
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return stw & 0x0200;
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}
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__CRT_INLINE int __cdecl __signbitf (float x) {
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unsigned short stw;
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__asm__ ("fxam; fstsw %%ax;": "=a" (stw) : "t" (x));
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__fxam(x, stw);
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return stw & 0x0200;
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}
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__CRT_INLINE int __cdecl __signbitl (long double x) {
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unsigned short stw;
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__asm__ ("fxam; fstsw %%ax;": "=a" (stw) : "t" (x));
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__fxam(x, stw);
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return stw & 0x0200;
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}
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@ -387,27 +394,40 @@ __CRT_INLINE int isinf (double d) {
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extern float __cdecl logbf (float);
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extern long double __cdecl logbl (long double);
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#if defined(__GNUC__)
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#define __fxtract(x, res) \
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__asm__ ("fxtract\n\t" \
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"fstp %%st" : "=t" (res) : "0" (x))
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#elif defined(_MSC_VER)
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#define __fxtract(x, res) \
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__asm { fld [(x)] } \
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__asm { fxtract } \
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__asm { fstp st(0) } \
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__asm { fstp [(res)] }
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#endif
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__CRT_INLINE double __cdecl logb (double x)
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{
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double res;
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__asm__ ("fxtract\n\t"
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"fstp %%st" : "=t" (res) : "0" (x));
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__fxtract(x, res);
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return res;
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}
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__CRT_INLINE float __cdecl logbf (float x)
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{
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float res;
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__asm__ ("fxtract\n\t"
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"fstp %%st" : "=t" (res) : "0" (x));
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__fxtract(x, res);
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return res;
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}
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__CRT_INLINE long double __cdecl logbl (long double x)
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{
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long double res;
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__asm__ ("fxtract\n\t"
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"fstp %%st" : "=t" (res) : "0" (x));
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__fxtract(x, res);
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return res;
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}
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@ -485,73 +505,101 @@ __CRT_INLINE int isinf (double d) {
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/* 7.12.9.4 */
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/* round, using fpu control word settings */
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#if defined(__GNUC__)
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#define __frndint(x, res) \
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__asm__ ("fabs;" : "=t" (res) : "0" (x))
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#elif defined(_MSC_VER)
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#define __frndint(x, res) \
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__asm { fld [(x)] } \
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__asm { frndint } \
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__asm { fstp [(res)] }
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#endif
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__CRT_INLINE double __cdecl rint (double x)
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{
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double retval;
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__asm__ ("frndint;": "=t" (retval) : "0" (x));
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__frndint(x, retval);
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return retval;
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}
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__CRT_INLINE float __cdecl rintf (float x)
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{
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float retval;
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__asm__ ("frndint;" : "=t" (retval) : "0" (x) );
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__frndint(x, retval);
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return retval;
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}
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__CRT_INLINE long double __cdecl rintl (long double x)
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{
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long double retval;
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__asm__ ("frndint;" : "=t" (retval) : "0" (x) );
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__frndint(x, retval);
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return retval;
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}
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/* 7.12.9.5 */
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#if defined(__GNUC__)
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#define __fistpl(x, res) \
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__asm__ __volatile__("fistpl %0" : "=m" (res) : "t" (x) : "st")
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#define __fistpll(x, res) \
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__asm__ __volatile__("fistpll %0" : "=m" (res) : "t" (x) : "st")
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#elif defined(_MSC_VER)
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#define __fistpl(x, res) \
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__asm { fld [(x)] } \
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__asm { fistp [(res)] }
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#define __fistpll(x, res) \
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__asm { fld [(x)] } \
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__asm { fistp [(res)] }
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#endif
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__CRT_INLINE long __cdecl lrint (double x)
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{
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long retval;
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__asm__ __volatile__ \
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("fistpl %0" : "=m" (retval) : "t" (x) : "st"); \
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__fistpl(x, retval);
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return retval;
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}
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__CRT_INLINE long __cdecl lrintf (float x)
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{
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long retval;
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__asm__ __volatile__ \
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("fistpl %0" : "=m" (retval) : "t" (x) : "st"); \
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__fistpl(x, retval);
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return retval;
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}
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__CRT_INLINE long __cdecl lrintl (long double x)
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{
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long retval;
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__asm__ __volatile__ \
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("fistpl %0" : "=m" (retval) : "t" (x) : "st"); \
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__fistpl(x, retval);
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return retval;
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}
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__CRT_INLINE long long __cdecl llrint (double x)
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{
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long long retval;
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__asm__ __volatile__ \
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("fistpll %0" : "=m" (retval) : "t" (x) : "st"); \
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__fistpll(x, retval);
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return retval;
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}
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__CRT_INLINE long long __cdecl llrintf (float x)
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{
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long long retval;
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__asm__ __volatile__ \
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("fistpll %0" : "=m" (retval) : "t" (x) : "st"); \
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__fistpll(x, retval);
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return retval;
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}
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__CRT_INLINE long long __cdecl llrintl (long double x)
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{
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long long retval;
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__asm__ __volatile__ \
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("fistpll %0" : "=m" (retval) : "t" (x) : "st"); \
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__fistpll(x, retval);
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return retval;
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}
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@ -648,7 +696,7 @@ __CRT_INLINE int isinf (double d) {
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* which always returns true: yes, (NaN != NaN) is true).
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*/
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#if __GNUC__ >= 3
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#if defined(__GNUC__) && __GNUC__ >= 3
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#define isgreater(x, y) __builtin_isgreater(x, y)
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#define isgreaterequal(x, y) __builtin_isgreaterequal(x, y)
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@ -662,8 +710,20 @@ __CRT_INLINE int isinf (double d) {
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__CRT_INLINE int __cdecl
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__fp_unordered_compare (long double x, long double y){
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unsigned short retval;
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#if defined(__GNUC__)
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__asm__ ("fucom %%st(1);"
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"fnstsw;": "=a" (retval) : "t" (x), "u" (y));
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#elif defined(_MSC_VER)
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__asm {
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fld [x]
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fld [y]
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fxch st(1)
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fucom st(1)
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fnstsw [retval]
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fstp st(0)
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fstp st(0)
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}
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#endif
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return retval;
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}
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@ -735,47 +795,4 @@ extern "C++" {
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#define _FPCLASS_PINF 0x0200 /* Positive Infinity */
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#endif /* __MINGW_FPCLASS_DEFINED */
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/* 7.12.14 */
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/*
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* With these functions, comparisons involving quiet NaNs set the FP
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* condition code to "unordered". The IEEE floating-point spec
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* dictates that the result of floating-point comparisons should be
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* false whenever a NaN is involved, with the exception of the != op,
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* which always returns true: yes, (NaN != NaN) is true).
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*/
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#if __GNUC__ >= 3
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#define isgreater(x, y) __builtin_isgreater(x, y)
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#define isgreaterequal(x, y) __builtin_isgreaterequal(x, y)
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#define isless(x, y) __builtin_isless(x, y)
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#define islessequal(x, y) __builtin_islessequal(x, y)
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#define islessgreater(x, y) __builtin_islessgreater(x, y)
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#define isunordered(x, y) __builtin_isunordered(x, y)
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#else
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/* helper */
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__CRT_INLINE int __cdecl
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__fp_unordered_compare (long double x, long double y){
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unsigned short retval;
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__asm__ ("fucom %%st(1);"
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"fnstsw;": "=a" (retval) : "t" (x), "u" (y));
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return retval;
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}
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#define isgreater(x, y) ((__fp_unordered_compare(x, y) \
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& 0x4500) == 0)
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#define isless(x, y) ((__fp_unordered_compare (y, x) \
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& 0x4500) == 0)
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#define isgreaterequal(x, y) ((__fp_unordered_compare (x, y) \
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& FP_INFINITE) == 0)
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#define islessequal(x, y) ((__fp_unordered_compare(y, x) \
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& FP_INFINITE) == 0)
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#define islessgreater(x, y) ((__fp_unordered_compare(x, y) \
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& FP_SUBNORMAL) == 0)
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#define isunordered(x, y) ((__fp_unordered_compare(x, y) \
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& 0x4500) == 0x4500)
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#endif
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#endif /* !_INC_MATH */
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