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include: Use gcc builtin for HUGE_VAL. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2020-11-19 13:29:01 +01:00
parent 6482ce7666
commit 32eae49275
1 changed files with 2 additions and 12 deletions
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14
include/msvcrt/math.h
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@ -201,21 +201,10 @@ float __cdecl _hypotf(float, float);
int __cdecl _matherr(struct _exception*); int __cdecl _matherr(struct _exception*);
double __cdecl _cabs(struct _complex); double __cdecl _cabs(struct _complex);
#ifndef HUGE_VAL
# if defined(__GNUC__) && (__GNUC__ >= 3)
# define HUGE_VAL (__extension__ 0x1.0p2047)
# else
static const union {
unsigned char __c[8];
double __d;
} __huge_val = { { 0, 0, 0, 0, 0, 0, 0xf0, 0x7f } };
# define HUGE_VAL (__huge_val.__d)
# endif
#endif
#if (defined(__GNUC__) && ((__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)))) || defined(__clang__) #if (defined(__GNUC__) && ((__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)))) || defined(__clang__)
# define INFINITY __builtin_inff() # define INFINITY __builtin_inff()
# define NAN __builtin_nanf("") # define NAN __builtin_nanf("")
# define HUGE_VAL __builtin_huge_val()
#else #else
static const union { static const union {
unsigned int __i; unsigned int __i;
@ -223,6 +212,7 @@ static const union {
} __inff = { 0x7f800000 }, __nanf = { 0x7fc00000 }; } __inff = { 0x7f800000 }, __nanf = { 0x7fc00000 };
# define INFINITY (__inff.__f) # define INFINITY (__inff.__f)
# define NAN (__nanf.__f) # define NAN (__nanf.__f)
# define HUGE_VAL ((double)INFINITY)
#endif #endif
#define FP_INFINITE 1 #define FP_INFINITE 1