1 /* Store current floating-point environment and clear exceptions. 2 Copyright (C) 1997-2021 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 fenv_t tmp; 26 27 __fenv_stfsr (*envp); 28 29 /* Set all exceptions to non-stop and clear all exceptions. */ 30 tmp = *envp & ~((0x1f << 23) | FE_ALL_EXCEPT); 31 32 __fenv_ldfsr (tmp); 33 34 return 0; 35 } 36 libm_hidden_def (__feholdexcept) 37 weak_alias (__feholdexcept, feholdexcept) 38 libm_hidden_weak (feholdexcept) 39