| /* Copyright (C) 2001, 2004, 2010 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, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #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 |
| |
| # include <bits/wordsize.h> |
| |
| # if __WORDSIZE == 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. */ |
| # if __FP_FAST_FMA |
| # define FP_FAST_FMA 1 |
| # endif |
| |
| # if __FP_FAST_FMAF |
| # define FP_FAST_FMAF 1 |
| # endif |
| |
| # if __FP_FAST_FMAL |
| # define FP_FAST_FMAL 1 |
| # endif |
| |
| #endif /* ISO C99 */ |
