diff options
Diffstat (limited to 'math')
| -rw-r--r-- | math/math.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/math/math.h b/math/math.h index c50b2e7b07..4e65678b8d 100644 --- a/math/math.h +++ b/math/math.h @@ -1,5 +1,5 @@ /* Declarations for math functions. - Copyright (C) 1991-1993, 1995-1999, 2001, 2002, 2004, 2006 + Copyright (C) 1991-1993, 1995-1999, 2001, 2002, 2004, 2006, 2009 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -101,7 +101,7 @@ __BEGIN_DECLS && (!defined __NO_LONG_DOUBLE_MATH || defined __LDBL_COMPAT) # ifdef __LDBL_COMPAT -# ifdef __USE_ISOC99 +# ifdef __USE_ISOC99 extern float __nldbl_nexttowardf (float __x, long double __y) __THROW __attribute__ ((__const__)); # ifdef __REDIRECT_NTH @@ -277,6 +277,13 @@ enum # define MATH_ERRNO 1 /* errno set by math functions. */ # define MATH_ERREXCEPT 2 /* Exceptions raised by math functions. */ +/* By default all functions support both errno and exception handling. + In gcc's fast math mode and if inline functions are defined this + might not be true. */ +# ifndef __FAST_MATH__ +# define math_errhandling (MATH_ERRNO | MATH_ERREXCEPT) +# endif + #endif /* Use ISO C99. */ #ifdef __USE_MISC |