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Use hexadecimal floating-point constants for gcc >= 2.95.

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This commit is contained in:
Ulrich Drepper 1999-08-24 20:35:50 +00:00
parent 7e5a3fd89a
commit 143751489c
2 changed files with 45 additions and 12 deletions
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22
sysdeps/arm/bits/huge_val.h
View File

@ -1,7 +1,7 @@
/* `HUGE_VAL' constants for IEEE 754 machines (where it is infinity).
Used by <stdlib.h> and <math.h> functions for overflow.
ARM version.
Copyright (C) 1992, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
Copyright (C) 1992, 95, 96, 97, 98, 99 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -29,11 +29,19 @@
#ifdef __GNUC__
# define HUGE_VAL \
# if __GNUC_PREREQ(2,95)
# define HUGE_VAL (0x1.0p2047)
# else
# define HUGE_VAL \
(__extension__ \
((union { unsigned __l __attribute__((__mode__(__DI__))); double __d; }) \
{ __l: 0x000000007ff00000ULL }).__d)
# endif
#else /* not GCC */
# include <endian.h>
@ -59,11 +67,19 @@ static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
# ifdef __GNUC__
# define HUGE_VALF \
# if __GNUC_PREREQ(2,95)
# define HUGE_VALF (0x1.0p255f)
# else
# define HUGE_VALF \
(__extension__ \
((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; }) \
{ __l: 0x7f800000UL }).__d)
# endif
# else /* not GCC */
typedef union { unsigned char __c[4]; float __f; } __huge_valf_t;

35
sysdeps/m68k/bits/huge_val.h
View File

@ -1,6 +1,6 @@
/* `HUGE_VAL' constants for m68k (where it is infinity).
Used by <stdlib.h> and <math.h> functions for overflow.
Copyright (C) 1992, 1995, 1996, 1997 Free Software Foundation, Inc.
Copyright (C) 1992, 1995, 1996, 1997, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -30,11 +30,19 @@
#ifdef __GNUC__
# define HUGE_VAL \
# if __GNUC_PREREQ(2,95)
# define HUGE_VAL (0x1.0p2047)
# else
# define HUGE_VAL \
(__extension__ \
((union { unsigned long long __l; double __d; }) \
{ __l: 0x7ff0000000000000ULL }).__d)
# endif
#else /* not GCC */
static union { unsigned char __c[8]; double __d; } __huge_val =
@ -48,28 +56,37 @@ static union { unsigned char __c[8]; double __d; } __huge_val =
#ifdef __USE_ISOC9X
# ifdef __GNUC__
# if __GNUC_PREREQ(2,95)
# define HUGE_VALF \
# define HUGE_VALF (0x1.0p255f)
# define HUGE_VALL (0x1.0p32767L)
# else
# ifdef __GNUC__
# define HUGE_VALF \
(__extension__ \
((union { unsigned long __l; float __f; }) \
{ __l: 0x7f800000UL }).__f)
# define HUGE_VALL \
# define HUGE_VALL \
(__extension__ \
((union { unsigned long __l[3]; long double __ld; }) \
{ __l: { 0x7fff0000UL, 0x80000000UL, 0UL } }).__ld)
# else /* not GCC */
# else /* not GCC */
static union { unsigned char __c[4]; float __f; } __huge_valf =
{ { 0x7f, 0x80, 0, 0 } };
# define HUGE_VALF (__huge_valf.__f)
# define HUGE_VALF (__huge_valf.__f)
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)
# define HUGE_VALL (__huge_vall.__ld)
# endif /* GCC. */
# endif /* GCC. */
# endif /* GCC 2.95. */
#endif /* __USE_ISOC9X. */