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authorUlrich Drepper <drepper@redhat.com>1999-08-24 20:35:50 +0000
committerUlrich Drepper <drepper@redhat.com>1999-08-24 20:35:50 +0000
commit143751489c604337d5f82fbf47fad4bbd3186a92 (patch)
tree9e8f3787259f29c78f3202bf65ff9311dc56c5b9
parent7e5a3fd89ac28defdd39c082b2d885da2ed9c5dd (diff)
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Use hexadecimal floating-point constants for gcc >= 2.95.
-rw-r--r--sysdeps/arm/bits/huge_val.h22
-rw-r--r--sysdeps/m68k/bits/huge_val.h35
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. */