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* mingwex/math/signbit.c (__signbit): Make return value 

consistent with GCC's __builtin_signbit.
	* mingwex/math/signbitf.c (__signbitf):  Likewise.
	* mingwex/math/signbitf.c (__signbitl):  Likewise.
	* include/math.h (__signbit, __signbitf, __signbitl): Likewise
	for inlines.
This commit is contained in:
Danny Smith 2005-05-03 08:39:19 +00:00
parent 38efa5f128
commit 8559dd92d0
5 changed files with 15 additions and 6 deletions
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9
winsup/mingw/ChangeLog
View File

@ -1,3 +1,12 @@
2005-05-03 Danny Smith <dannysmith@users.sourceforge.net>
* mingwex/math/signbit.c (__signbit): Make return value
consistent with GCC's __builtin_signbit.
* mingwex/math/signbitf.c (__signbitf): Likewise.
* mingwex/math/signbitf.c (__signbitl): Likewise.
* include/math.h (__signbit, __signbitf, __signbitl): Likewise
for inlines.
2005-05-02 Danny Smith <dannysmith@users.sourceforge.net> 2005-05-02 Danny Smith <dannysmith@users.sourceforge.net>
* include/_mingw.h (__MINGW_ATTRIB_NONNULL): Don't define as * include/_mingw.h (__MINGW_ATTRIB_NONNULL): Don't define as

6
winsup/mingw/include/math.h
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@ -373,19 +373,19 @@ __CRT_INLINE int __cdecl __isnanl (long double _x)
__CRT_INLINE int __cdecl __signbit (double x) { __CRT_INLINE int __cdecl __signbit (double x) {
unsigned short stw; unsigned short stw;
__asm__ ( "fxam; fstsw %%ax;": "=a" (stw) : "t" (x)); __asm__ ( "fxam; fstsw %%ax;": "=a" (stw) : "t" (x));
return stw & 0x0200; return (stw & 0x0200) != 0;
} }
__CRT_INLINE int __cdecl __signbitf (float x) { __CRT_INLINE int __cdecl __signbitf (float x) {
unsigned short stw; unsigned short stw;
__asm__ ("fxam; fstsw %%ax;": "=a" (stw) : "t" (x)); __asm__ ("fxam; fstsw %%ax;": "=a" (stw) : "t" (x));
return stw & 0x0200; return (stw & 0x0200) != 0;
} }
__CRT_INLINE int __cdecl __signbitl (long double x) { __CRT_INLINE int __cdecl __signbitl (long double x) {
unsigned short stw; unsigned short stw;
__asm__ ("fxam; fstsw %%ax;": "=a" (stw) : "t" (x)); __asm__ ("fxam; fstsw %%ax;": "=a" (stw) : "t" (x));
return stw & 0x0200; return (stw & 0x0200) != 0;
} }
#define signbit(x) (sizeof (x) == sizeof (float) ? __signbitf (x) \ #define signbit(x) (sizeof (x) == sizeof (float) ? __signbitf (x) \

2
winsup/mingw/mingwex/math/signbit.c
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@ -5,7 +5,7 @@ int __signbit (double x) {
__asm__ ("fxam; fstsw %%ax;" __asm__ ("fxam; fstsw %%ax;"
: "=a" (sw) : "=a" (sw)
: "t" (x) ); : "t" (x) );
return sw & __FP_SIGNBIT; return (sw & __FP_SIGNBIT) != 0;
} }
#undef signbit #undef signbit

2
winsup/mingw/mingwex/math/signbitf.c
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@ -5,6 +5,6 @@ int __signbitf (float x) {
__asm__ ("fxam; fstsw %%ax;" __asm__ ("fxam; fstsw %%ax;"
: "=a" (sw) : "=a" (sw)
: "t" (x) ); : "t" (x) );
return sw & __FP_SIGNBIT; return (sw & __FP_SIGNBIT) != 0;
} }
int __attribute__ ((alias ("__signbitf"))) signbitf (float); int __attribute__ ((alias ("__signbitf"))) signbitf (float);

2
winsup/mingw/mingwex/math/signbitl.c
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@ -5,7 +5,7 @@ int __signbitl (long double x) {
__asm__ ("fxam; fstsw %%ax;" __asm__ ("fxam; fstsw %%ax;"
: "=a" (sw) : "=a" (sw)
: "t" (x) ); : "t" (x) );
return sw & __FP_SIGNBIT; return (sw & __FP_SIGNBIT) != 0;
} }
int __attribute__ ((alias ("__signbitl"))) signbitl (long double); int __attribute__ ((alias ("__signbitl"))) signbitl (long double);