1 /* Clear given exceptions in current floating-point environment. 2 OpenRISC version. 3 Copyright (C) 2024-2025 Free Software Foundation, Inc. 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 <fpu_control.h> 21 22 int feclearexcept(int excepts)23feclearexcept (int excepts) 24 { 25 fpu_control_t cw; 26 fpu_control_t cw_new; 27 28 /* Mask out unsupported bits/exceptions. */ 29 excepts &= FE_ALL_EXCEPT; 30 31 /* Read the complete control word. */ 32 _FPU_GETCW (cw); 33 34 cw_new = cw & ~excepts; 35 36 /* Put the new data in effect. */ 37 if (cw != cw_new) 38 _FPU_SETCW (cw_new); 39 40 /* Success. */ 41 return 0; 42 } 43