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Diffstat (limited to 'bits/fp-fast.h')
-rw-r--r-- | bits/fp-fast.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/bits/fp-fast.h b/bits/fp-fast.h new file mode 100644 index 0000000000..8598710c1a --- /dev/null +++ b/bits/fp-fast.h @@ -0,0 +1,39 @@ +/* Define FP_FAST_* macros. + Copyright (C) 2016 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 + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _MATH_H +# error "Never use <bits/fp-fast.h> directly; include <math.h> instead." +#endif + +#ifdef __USE_ISOC99 + +/* The GCC 4.6 compiler will define __FP_FAST_FMA{,F,L} if the fma{,f,l} + builtins are supported. */ +# ifdef __FP_FAST_FMA +# define FP_FAST_FMA 1 +# endif + +# ifdef __FP_FAST_FMAF +# define FP_FAST_FMAF 1 +# endif + +# ifdef __FP_FAST_FMAL +# define FP_FAST_FMAL 1 +# endif + +#endif |