/* Define FP_FAST_* macros. Copyright (C) 2016-2022 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 <https://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