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authorTodd C. Miller <millert@cvs.openbsd.org>2005-02-01 15:12:31 +0000
committerTodd C. Miller <millert@cvs.openbsd.org>2005-02-01 15:12:31 +0000
commit1b0c2756f2ed59c98af0244f8e4bc953aa86d9d5 (patch)
tree5f0e1cf4c46cc06d7847c4dc9c5161018e757400 /lib/libc/arch/sparc
parent7f1209ff29fd072e2f8d1f49392e63d47962736b (diff)
Replace broken frexp() with a working one from FreeBSD. There's
no need to have a copy for each platform with ieee floating point, only vax needs a special version (which probably has similar bugs). OK and with help from otto@
Diffstat (limited to 'lib/libc/arch/sparc')
-rw-r--r--lib/libc/arch/sparc/gen/Makefile.inc4
-rw-r--r--lib/libc/arch/sparc/gen/frexp.c74
2 files changed, 2 insertions, 76 deletions
diff --git a/lib/libc/arch/sparc/gen/Makefile.inc b/lib/libc/arch/sparc/gen/Makefile.inc
index 95e1b4011ef..c8d4731116f 100644
--- a/lib/libc/arch/sparc/gen/Makefile.inc
+++ b/lib/libc/arch/sparc/gen/Makefile.inc
@@ -1,6 +1,6 @@
-# $OpenBSD: Makefile.inc,v 1.3 2003/05/02 19:20:26 millert Exp $
+# $OpenBSD: Makefile.inc,v 1.4 2005/02/01 15:12:30 millert Exp $
-SRCS+= _setjmp.S fabs.S frexp.c infinity.c isinf.c isnan.c ldexp.c modf.S
+SRCS+= _setjmp.S fabs.S infinity.c isinf.c isnan.c ldexp.c modf.S
SRCS+= flt_rounds.c fpgetmask.c fpgetround.c fpgetsticky.c fpsetmask.c \
fpsetround.c fpsetsticky.c
SRCS+= fixunsdfsi.S mul.S umul.S saveregs.S setjmp.S sigsetjmp.S
diff --git a/lib/libc/arch/sparc/gen/frexp.c b/lib/libc/arch/sparc/gen/frexp.c
deleted file mode 100644
index a5afb1a6d24..00000000000
--- a/lib/libc/arch/sparc/gen/frexp.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/* $OpenBSD: frexp.c,v 1.5 2003/06/02 20:18:32 millert Exp $ */
-
-/*
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This software was developed by the Computer Systems Engineering group
- * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
- * contributed to Berkeley.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char rcsid[] = "$OpenBSD: frexp.c,v 1.5 2003/06/02 20:18:32 millert Exp $";
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-#include <machine/ieee.h>
-
-/*
- * Split the given value into a fraction in the range [0.5, 1.0) and
- * an exponent, such that frac * (2^exp) == value. If value is 0,
- * return 0.
- */
-double
-frexp(value, eptr)
- double value;
- int *eptr;
-{
- union {
- double v;
- struct ieee_double s;
- } u;
-
- if (value) {
- /*
- * Fractions in [0.5..1.0) have an exponent of 2^-1.
- * Leave Inf and NaN alone, however.
- * WHAT ABOUT DENORMS?
- */
- u.v = value;
- if (u.s.dbl_exp != DBL_EXP_INFNAN) {
- *eptr = u.s.dbl_exp - (DBL_EXP_BIAS - 1);
- u.s.dbl_exp = DBL_EXP_BIAS - 1;
- }
- return (u.v);
- } else {
- *eptr = 0;
- return ((double)0);
- }
-}