aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/i386/bits
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>1999-08-24 20:40:44 +0000
committerUlrich Drepper <drepper@redhat.com>1999-08-24 20:40:44 +0000
commit52cf7d345d34e59973a8cc04773bdc1f9ba39421 (patch)
tree1ef2f778718c17af739761798c357666308b1bc4 /sysdeps/i386/bits
parentda1067a9154c3125a4274e1d039dd5b2d3aa953c (diff)
downloadglibc-52cf7d345d34e59973a8cc04773bdc1f9ba39421.zip
glibc-52cf7d345d34e59973a8cc04773bdc1f9ba39421.tar.gz
glibc-52cf7d345d34e59973a8cc04773bdc1f9ba39421.tar.bz2
Update.
* misc/libgen.h: Don't take basename macro as taking arguments. * sysdeps/arm/bits/huge_val.h: Use hexadecimal floating-point constants for gcc >= 2.95. * sysdeps/i386/bits/huge_val.h: Likewise. * sysdeps/i386/bits/huge_val.h: Likewise. * sysdeps/ieee754/bits/huge_val.h: Likewise. * sysdeps/m68k/bits/huge_val.h: Likewise. * sysdeps/sparc/sparc32/fpu/bits/huge_val.h: Likewise. * sysdeps/sparc/sparc64/fpu/bits/huge_val.h: Likewise.
Diffstat (limited to 'sysdeps/i386/bits')
-rw-r--r--sysdeps/i386/bits/huge_val.h57
1 files changed, 35 insertions, 22 deletions
diff --git a/sysdeps/i386/bits/huge_val.h b/sysdeps/i386/bits/huge_val.h
index 23127b4..65e500b 100644
--- a/sysdeps/i386/bits/huge_val.h
+++ b/sysdeps/i386/bits/huge_val.h
@@ -1,6 +1,6 @@
/* `HUGE_VAL' constants for ix86 (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
@@ -26,43 +26,56 @@
/* IEEE positive infinity (-HUGE_VAL is negative infinity). */
-#define __HUGE_VAL_bytes { 0, 0, 0, 0, 0, 0, 0xf0, 0x7f }
+#if __GNUC_PREREQ(2,95)
+# define HUGE_VAL (0x1.0p2047)
+#else
+# define __HUGE_VAL_bytes { 0, 0, 0, 0, 0, 0, 0xf0, 0x7f }
-#define __huge_val_t union { unsigned char __c[8]; double __d; }
-#ifdef __GNUC__
-# define HUGE_VAL (__extension__ \
+# 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. */
+# else /* Not GCC. */
static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
-# define HUGE_VAL (__huge_val.__d)
-#endif /* GCC. */
+# define HUGE_VAL (__huge_val.__d)
+# endif /* GCC. */
+#endif /* GCC 2.95 */
/* ISO C 9X extensions: (float) HUGE_VALF and (long double) HUGE_VALL. */
#ifdef __USE_ISOC9X
-# define __HUGE_VALF_bytes { 0, 0, 0x80, 0x7f }
+# if __GNUC_PREREQ(2,95)
-# define __huge_valf_t union { unsigned char __c[4]; float __f; }
-# ifdef __GNUC__
-# define HUGE_VALF (__extension__ \
+# define HUGE_VALF (0x1.0p255f)
+# define HUGE_VALL (0x1.0p32767L)
+
+# else
+
+# define __HUGE_VALF_bytes { 0, 0, 0x80, 0x7f }
+
+# 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. */
+# else /* Not GCC. */
static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
-# define HUGE_VALF (__huge_valf.__f)
-# endif /* GCC. */
+# define HUGE_VALF (__huge_valf.__f)
+# endif /* GCC. */
-# define __HUGE_VALL_bytes { 0, 0, 0, 0, 0, 0, 0, 0x80, 0xff, 0x7f, 0, 0 }
+# define __HUGE_VALL_bytes { 0, 0, 0, 0, 0, 0, 0, 0x80, 0xff, 0x7f, 0, 0 }
-# define __huge_vall_t union { unsigned char __c[12]; long double __ld; }
-# ifdef __GNUC__
-# define HUGE_VALL (__extension__ \
+# 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. */
+# else /* Not GCC. */
static __huge_vall_t __huge_vall = { __HUGE_VALL_bytes };
-# define HUGE_VALL (__huge_vall.__ld)
-# endif /* GCC. */
+# define HUGE_VALL (__huge_vall.__ld)
+# endif /* GCC. */
+
+# endif /* GCC 2.95 */
#endif /* __USE_ISOC9X. */