From 12c61ac390c354de8dc9c872fdb25f38207ecc5c Mon Sep 17 00:00:00 2001
From: Roger Sayle <roger@eyesopen.com>
Date: Sat, 11 Feb 2006 16:50:41 +0000
Subject: [PATCH] re PR bootstrap/16787 (NAN constant "(0.0/0.0)" cannot be
compiled by Tru64 cc)
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.
Co-Authored-By: Bill Northcott <w.northcott@unsw.edu.au>
Co-Authored-By: R. Scott Bailey <scott.bailey@eds.com>
From-SVN: r110873
---
libiberty/ChangeLog | 8 ++++++++
libiberty/floatformat.c | 11 ++++++++++-
2 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index df72f6df0299..e319e76b52df 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 c97b6c57f0ae..bd31efac7c17 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,
--
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