diff options
| author | sayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-02-11 16:50:41 +0000 |
|---|---|---|
| committer | sayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-02-11 16:50:41 +0000 |
| commit | a975d4e0caf3071eddc30871ccf79eac86841ee9 (patch) | |
| tree | 1205b843e863d51297ea4ec60275a318a4845be3 /libiberty/floatformat.c | |
| parent | d3a64d09859affac64711dd020c99b43350f8a23 (diff) | |
| download | gcc-a975d4e0caf3071eddc30871ccf79eac86841ee9.tar.gz | |
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@110873 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libiberty/floatformat.c')
| -rw-r--r-- | libiberty/floatformat.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/libiberty/floatformat.c b/libiberty/floatformat.c index c97b6c57f0a..bd31efac7c1 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, |