1 /* Store current floating-point environment and clear exceptions. 2 Copyright (C) 1997-2022 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_libc.h> 20 21 int __feholdexcept(fenv_t * envp)22__feholdexcept (fenv_t *envp) 23 { 24 /* Save the current state. */ 25 __fegetenv(envp); 26 27 /* Clear all exception status bits and exception enable bits. */ 28 __ieee_set_fp_control(*envp & SWCR_MAP_MASK); 29 30 return 0; 31 } 32 libm_hidden_def (__feholdexcept) 33 weak_alias (__feholdexcept, feholdexcept) 34 libm_hidden_weak (feholdexcept) 35