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| author | Ulrich Drepper <drepper@redhat.com> | 1999-07-14 00:54:57 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1999-07-14 00:54:57 +0000 |
| commit | abfbdde177c3a7155070dda1b2cdc8292054cc26 (patch) | |
| tree | e021306b596381fbf8311d2b7eb294e918ff17c8 /sysdeps/libm-ieee754/s_logb.c | |
| parent | 86421aa57ecfd70963ae66848bd6a6dd3b8e0fe6 (diff) | |
| download | glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.tar glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.tar.gz glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.tar.bz2 glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.zip | |
Update.
Diffstat (limited to 'sysdeps/libm-ieee754/s_logb.c')
| -rw-r--r-- | sysdeps/libm-ieee754/s_logb.c | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/sysdeps/libm-ieee754/s_logb.c b/sysdeps/libm-ieee754/s_logb.c deleted file mode 100644 index 4668cf78f8..0000000000 --- a/sysdeps/libm-ieee754/s_logb.c +++ /dev/null @@ -1,47 +0,0 @@ -/* @(#)s_logb.c 5.1 93/09/24 */ -/* - * ==================================================== - * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. - * - * Developed at SunPro, a Sun Microsystems, Inc. business. - * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice - * is preserved. - * ==================================================== - */ - -#if defined(LIBM_SCCS) && !defined(lint) -static char rcsid[] = "$NetBSD: s_logb.c,v 1.8 1995/05/10 20:47:50 jtc Exp $"; -#endif - -/* - * double logb(x) - * IEEE 754 logb. Included to pass IEEE test suite. Not recommend. - * Use ilogb instead. - */ - -#include "math.h" -#include "math_private.h" - -#ifdef __STDC__ - double __logb(double x) -#else - double __logb(x) - double x; -#endif -{ - int32_t lx,ix; - EXTRACT_WORDS(ix,lx,x); - ix &= 0x7fffffff; /* high |x| */ - if((ix|lx)==0) return -1.0/fabs(x); - if(ix>=0x7ff00000) return x*x; - if((ix>>=20)==0) /* IEEE 754 logb */ - return -1022.0; - else - return (double) (ix-1023); -} -weak_alias (__logb, logb) -#ifdef NO_LONG_DOUBLE -strong_alias (__logb, __logbl) -weak_alias (__logb, logbl) -#endif |