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| author | Ulrich Drepper <drepper@redhat.com> | 2009-08-24 10:33:57 -0700 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-08-24 10:33:57 -0700 |
| commit | 7b943af6cf2bfd4b94be271877a10128c32d03da (patch) | |
| tree | 61e48476a7cfc36f79a21c828aebda8157d606ef | |
| parent | ef72d5f1b95fe91b032de0ad1ee777d7cf4fb49f (diff) | |
| download | glibc-7b943af6cf2bfd4b94be271877a10128c32d03da.tar.gz glibc-7b943af6cf2bfd4b94be271877a10128c32d03da.tar.xz glibc-7b943af6cf2bfd4b94be271877a10128c32d03da.zip | |
Define math_errhandling is possible.
| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | math/math.h | 11 | ||||
| -rw-r--r-- | sysdeps/i386/fpu/bits/mathinline.h | 6 |
3 files changed, 18 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog index 45ff958cb8..b367ab0782 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2009-08-24 Ulrich Drepper <drepper@redhat.com> + * math/math.h: Define math_errhandling of __FAST_MATH__ is not defined. + * sysdeps/i386/fpu/bits/mathinline.h: Undefine math_errhandling if we + are using the inline optimizations. + * sysdeps/x86_64/fpu/bits/mathinline.h (__signbit): Optimize. (__signbitf): Likewise. 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 diff --git a/sysdeps/i386/fpu/bits/mathinline.h b/sysdeps/i386/fpu/bits/mathinline.h index a786cc69cd..8005997520 100644 --- a/sysdeps/i386/fpu/bits/mathinline.h +++ b/sysdeps/i386/fpu/bits/mathinline.h @@ -1,5 +1,5 @@ /* Inline math functions for i387. - Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2003,2004,2006,2007 + Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2003,2004,2006,2007,2009 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by John C. Bowman <bowman@math.ualberta.ca>, 1995. @@ -153,6 +153,10 @@ __NTH (__signbitl (long double __x)) #if ((!defined __NO_MATH_INLINES || defined __LIBC_INTERNAL_MATH_INLINES) \ && defined __OPTIMIZE__) +/* The inline functions do not set errno or raise necessarily the + correct exceptions. */ +# undef math_errhandling + /* A macro to define float, double, and long double versions of various math functions for the ix87 FPU. FUNC is the function name (which will be suffixed with f and l for the float and long double version, |