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author | Ulrich Drepper <drepper@redhat.com> | 1999-08-24 20:35:50 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1999-08-24 20:35:50 +0000 |
commit | 143751489c604337d5f82fbf47fad4bbd3186a92 (patch) | |
tree | 9e8f3787259f29c78f3202bf65ff9311dc56c5b9 | |
parent | 7e5a3fd89ac28defdd39c082b2d885da2ed9c5dd (diff) | |
download | glibc-143751489c604337d5f82fbf47fad4bbd3186a92.tar glibc-143751489c604337d5f82fbf47fad4bbd3186a92.tar.gz glibc-143751489c604337d5f82fbf47fad4bbd3186a92.tar.bz2 glibc-143751489c604337d5f82fbf47fad4bbd3186a92.zip |
Use hexadecimal floating-point constants for gcc >= 2.95.
-rw-r--r-- | sysdeps/arm/bits/huge_val.h | 22 | ||||
-rw-r--r-- | sysdeps/m68k/bits/huge_val.h | 35 |
2 files changed, 45 insertions, 12 deletions
diff --git a/sysdeps/arm/bits/huge_val.h b/sysdeps/arm/bits/huge_val.h index 0e07bd56cc..1b236c425d 100644 --- a/sysdeps/arm/bits/huge_val.h +++ b/sysdeps/arm/bits/huge_val.h @@ -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; diff --git a/sysdeps/m68k/bits/huge_val.h b/sysdeps/m68k/bits/huge_val.h index 822b82930b..14c0855ab1 100644 --- a/sysdeps/m68k/bits/huge_val.h +++ b/sysdeps/m68k/bits/huge_val.h @@ -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. */ |