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- /* Copyright (C) 2001-2016 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/>. */
- #if !defined _MATH_H && !defined _COMPLEX_H
- # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
- #endif
- #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
- # define _MATH_H_MATHDEF 1
- # if defined __x86_64__ || (defined __FLT_EVAL_METHOD__ && __FLT_EVAL_METHOD__ == 0)
- /* The x86-64 architecture computes values with the precission of the
- used type. Similarly for -m32 -mfpmath=sse. */
- typedef float float_t; /* `float' expressions are evaluated as `float'. */
- typedef double double_t; /* `double' expressions are evaluated
- as `double'. */
- # else
- /* The ix87 FPUs evaluate all values in the 80 bit floating-point format
- which is also available for the user as `long double'. Therefore we
- define: */
- typedef long double float_t; /* `float' expressions are evaluated as
- `long double'. */
- typedef long double double_t; /* `double' expressions are evaluated as
- `long double'. */
- # endif
- /* The values returned by `ilogb' for 0 and NaN respectively. */
- # define FP_ILOGB0 (-2147483647 - 1)
- # define FP_ILOGBNAN (-2147483647 - 1)
- /* 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 /* ISO C99 */
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