Change GCC's HUGE_VAL{,F,L} to use DI and SI mode integers instead of

bytes.  Fix value of HUGE_VALL.
This commit is contained in:
Ulrich Drepper 1997-06-04 19:04:28 +00:00
parent 68b8d6f1fd
commit d901ee0d08

View File

@ -26,15 +26,19 @@
/* IEEE positive infinity (-HUGE_VAL is negative infinity). */
#define __HUGE_VAL_bytes { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 }
#define __huge_val_t union { unsigned char __c[8]; double __d; }
#ifdef __GNUC__
#define HUGE_VAL (__extension__ \
((__huge_val_t) { __c: __HUGE_VAL_bytes }).__d)
#else /* Not GCC. */
static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
#define HUGE_VAL \
(__extension__ \
((union { unsigned long long __l; double __d; }) \
{ __l: 0x7ff0000000000000ULL }).__d)
#else /* not GCC */
static union { unsigned char __c[8]; double __d; } __huge_val =
{ { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 } };
#define HUGE_VAL (__huge_val.__d)
#endif /* GCC. */
@ -42,27 +46,28 @@ static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
#ifdef __USE_ISOC9X
#define __HUGE_VALF_bytes { 0x7f, 0x80, 0, 0 }
#ifdef __GNUC__
#define __huge_valf_t union { unsigned char __c[4]; float __f; }
#ifdef __GNUC__
#define HUGE_VALF (__extension__ \
((__huge_valf_t) { __c: __HUGE_VALF_bytes }).__f)
#else /* Not GCC. */
static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
#define HUGE_VALF \
(__extension__ \
((union { unsigned long __l; float __f; }) \
{ __l: 0x7f800000UL }).__f)
#define HUGE_VALL \
(__extension__ \
((union { unsigned long __l[3]; long double __ld; }) \
{ __l: { 0x7fff0000UL, 0x80000000UL, 0UL } }).__ld)
#else /* not GCC */
static union { unsigned char __c[4]; float __f; } __huge_valf =
{ { 0x7f, 0x80, 0, 0 } };
#define HUGE_VALF (__huge_valf.__f)
#endif /* GCC. */
#define __HUGE_VALL_bytes { 0x7f, 0xff, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
#define __huge_vall_t union { unsigned char __c[12]; long double __ld; }
#ifdef __GNUC__
#define HUGE_VALL (__extension__ \
((__huge_vall_t) { __c: __HUGE_VALL_bytes }).__ld)
#else /* Not GCC. */
static __huge_vall_t __huge_vall = { __HUGE_VALL_bytes };
static union { unsigned char __c[12]; long double __ld; } __huge_vall =
{ { 0x7f, 0xff, 0, 0, 0x80, 0, 0, 0, 0, 0, 0, 0 } };
#define HUGE_VALL (__huge_vall.__ld)
#endif /* GCC. */
#endif /* __USE_ISOC9X. */