/* Copyright (C) 1997-2016 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 . */ #if !defined _MATH_H && !defined _COMPLEX_H # error "Never use directly; include instead" #endif #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF # define _MATH_H_MATHDEF 1 /* Normally, there is no long double type and the `float' and `double' expressions are evaluated as `double'. */ typedef double float_t; /* `float' expressions are evaluated as `double'. */ typedef double double_t; /* `double' expressions are evaluated as `double'. */ /* The values returned by `ilogb' for 0 and NaN respectively. */ # define FP_ILOGB0 (-2147483647) # define FP_ILOGBNAN 2147483647 /* 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 */ #ifndef __NO_LONG_DOUBLE_MATH /* Signal that we do not really have a `long double'. The disables the declaration of all the `long double' function variants. */ # define __NO_LONG_DOUBLE_MATH 1 #endif