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* include/math.h (HUGE_VAL): Define as builtin if __GNUC__ >= 3.3,

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else global library variable.
        (HUGEVALF): Likewise;
	(HUGEVALL): Likewise.
	(INFINITY): Likewise.
	(NAN): LiKewise.
This commit is contained in:
Danny Smith 2006-06-12 22:22:18 +00:00
parent a91cc828cc
commit a4c5a5dc71
2 changed files with 28 additions and 3 deletions
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9
winsup/mingw/ChangeLog
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@ -1,3 +1,12 @@
2006-06-13 Danny Smith <dannysmith@users.sourceforge.net>
* include/math.h (HUGE_VAL): Define as builtin if __GNUC__ >= 3.3,
else global library variable.
(HUGEVALF): Likewise;
(HUGEVALL): Likewise.
(INFINITY): Likewise.
(NAN): LiKewise.
2006-06-13 Danny Smith <dannysmith@users.sourceforge.net>
* mingwex/wcrtomb.c (wcrtomb_cp): Correct typo.

22
winsup/mingw/include/math.h
View File

@ -101,6 +101,10 @@ extern "C" {
* 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__
@ -124,6 +128,8 @@ __MINGW_IMPORT double _HUGE_dll;
#endif
#endif /* __DECLSPEC_SUPPORTED */
#endif /* __MINGW_GNUC_PREREQ(3, 3) */
struct _exception
{
@ -283,10 +289,20 @@ _CRTIMP int __cdecl _set_SSE2_enable (int);
#if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) \
|| !defined __STRICT_ANSI__ || defined __cplusplus
#define HUGE_VALF 0x1.0p255f
#define HUGE_VALL 0x1.0p32767L
#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
#define NAN (HUGE_VALF - HUGE_VALF)
extern const double __QNAN;
#define NAN __QNAN
#endif /* __MINGW_GNUC_PREREQ(3, 3) */
/* 7.12.3.1 */
/*