diff options
| author | Roger Sayle <roger@eyesopen.com> | 2006-02-11 16:50:41 +0000 |
|---|---|---|
| committer | Roger Sayle <sayle@gcc.gnu.org> | 2006-02-11 16:50:41 +0000 |
| commit | 12c61ac390c354de8dc9c872fdb25f38207ecc5c (patch) | |
| tree | 1205b843e863d51297ea4ec60275a318a4845be3 /libiberty/floatformat.c | |
| parent | 7405f03c5e8ad23776b65308974218e35ae72a1b (diff) | |
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
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, |