1 /* Store current floating-point environment and clear exceptions. 2 Copyright (C) 2020-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library. If not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #include <fenv.h> 20 #include <fenv_private.h> 21 22 int __feholdexcept(fenv_t * envp)23__feholdexcept (fenv_t *envp) 24 { 25 unsigned int fpcr; 26 unsigned int fpsr; 27 28 _FPU_GETCW (fpcr); 29 _FPU_GETS (fpsr); 30 31 envp->__fpcr = fpcr; 32 envp->__fpsr = fpsr; 33 34 fpsr &= ~FE_ALL_EXCEPT; 35 36 _FPU_SETCW (fpcr); 37 _FPU_SETS (fpsr); 38 39 return 0; 40 } 41 libm_hidden_def (__feholdexcept) 42 weak_alias (__feholdexcept, feholdexcept) 43 libm_hidden_weak (feholdexcept) 44