diff options
Diffstat (limited to 'sysdeps/ieee754/bits/nan.h')
| -rw-r--r-- | sysdeps/ieee754/bits/nan.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sysdeps/ieee754/bits/nan.h b/sysdeps/ieee754/bits/nan.h index 6d88b551b1..95de220e97 100644 --- a/sysdeps/ieee754/bits/nan.h +++ b/sysdeps/ieee754/bits/nan.h @@ -1,5 +1,5 @@ /* `NAN' constant for IEEE 754 machines. - Copyright (C) 1992, 1996, 1997, 1999 Free Software Foundation, Inc. + Copyright (C) 1992, 1996, 1997, 1999, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -24,7 +24,11 @@ /* IEEE Not A Number. */ -#ifdef __GNUC__ +#if __GNUC_PREREQ(3,3) + +# define NAN (__builtin_nanf("")) + +#elif defined__GNUC__ # define NAN \ (__extension__ \ |