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authorDJ Delorie <dj@redhat.com>2006-02-12 15:54:25 +0000
committerDJ Delorie <dj@redhat.com>2006-02-12 15:54:25 +0000
commite27d251e327de665b6f3284557acb8c8176e4375 (patch)
treefaee9c8ea42c2e715d15b04aaa3579e96548ff36 /libiberty
parent3b24bd49b51996525ab189bd879ba7728b285a6d (diff)
downloadgdb-e27d251e327de665b6f3284557acb8c8176e4375.zip
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merge from gcc
Diffstat (limited to 'libiberty')
-rw-r--r--libiberty/ChangeLog8
-rw-r--r--libiberty/floatformat.c11
2 files changed, 18 insertions, 1 deletions
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index df72f6d..e319e76 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,11 @@
+2006-02-11 Roger Sayle <roger@eyesopen.com>
+ R. Scott Bailey <scott.bailey@eds.com>
+ Bill Northcott <w.northcott@unsw.edu.au>
+
+ PR bootstrap/16787
+ * floatformat.c: Include <float.h> where available.
+ (NAN): Use value of DBL_QNAN if defined, and NAN isn't.
+
2006-01-29 Gabriel Dos Reis <gdr@integrable-solutions.net>
* configure.ac: Add -Wc++-compat to ac_libibety_warn_cflags where
diff --git a/libiberty/floatformat.c b/libiberty/floatformat.c
index c97b6c5..bd31efa 100644
--- a/libiberty/floatformat.c
+++ b/libiberty/floatformat.c
@@ -1,5 +1,5 @@
/* IEEE floating point support routines, for GDB, the GNU Debugger.
- Copyright 1991, 1994, 1999, 2000, 2003, 2005
+ Copyright 1991, 1994, 1999, 2000, 2003, 2005, 2006
Free Software Foundation, Inc.
This file is part of GDB.
@@ -31,6 +31,11 @@ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
#include <string.h>
#endif
+/* On some platforms, <float.h> provides DBL_QNAN. */
+#ifdef STDC_HEADERS
+#include <float.h>
+#endif
+
#include "ansidecl.h"
#include "libiberty.h"
#include "floatformat.h"
@@ -44,8 +49,12 @@ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
#endif
#ifndef NAN
+#ifdef DBL_QNAN
+#define NAN DBL_QNAN
+#else
#define NAN (0.0 / 0.0)
#endif
+#endif
static unsigned long get_field (const unsigned char *,
enum floatformat_byteorders,