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| author | Danny Smith <dannysmith@users.sourceforge.net> | 2006-06-12 22:22:18 +0000 |
|---|---|---|
| committer | Danny Smith <dannysmith@users.sourceforge.net> | 2006-06-12 22:22:18 +0000 |
| commit | a4c5a5dc71f7f545137dd26565484d573ac7d2ba (patch) | |
| tree | 8ddbe1ed889baf71f4946dd6bd90c8e2041652b2 /winsup/mingw/include/math.h | |
| parent | a91cc828ccea75e24b254d1214f1f61b0cc8bdfa (diff) | |
| download | cygnal-a4c5a5dc71f7f545137dd26565484d573ac7d2ba.tar.gz cygnal-a4c5a5dc71f7f545137dd26565484d573ac7d2ba.tar.bz2 cygnal-a4c5a5dc71f7f545137dd26565484d573ac7d2ba.zip | |
* include/math.h (HUGE_VAL): Define as builtin if __GNUC__ >= 3.3,
else global library variable.
(HUGEVALF): Likewise;
(HUGEVALL): Likewise.
(INFINITY): Likewise.
(NAN): LiKewise.
Diffstat (limited to 'winsup/mingw/include/math.h')
| -rw-r--r-- | winsup/mingw/include/math.h | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/winsup/mingw/include/math.h b/winsup/mingw/include/math.h index 1bd9b16c3..0da7869ba 100644 --- a/winsup/mingw/include/math.h +++ b/winsup/mingw/include/math.h @@ -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 */ /* |