1 /* Enable floating-point exceptions. 2 Copyright (C) 2012-2025 Free Software Foundation, Inc. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <https://www.gnu.org/licenses/>. */ 17 18 #include <fenv.h> 19 #include <fpu_control.h> 20 21 int feenableexcept(int excepts)22feenableexcept (int excepts) 23 { 24 fpu_control_t temp, old_flag; 25 26 /* Get current exceptions. */ 27 _FPU_GETCW (temp); 28 29 old_flag = (temp >> 5) & FE_ALL_EXCEPT; 30 excepts &= FE_ALL_EXCEPT; 31 32 temp |= excepts << 5; 33 _FPU_SETCW (temp); 34 35 return old_flag; 36 } 37