1 /* Copyright (C) 1997-2022 Free Software Foundation, Inc. 2 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 License as 7 published by the Free Software Foundation; either version 2.1 of the 8 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 fesetexceptflag(const fexcept_t * flagp,int excepts)23fesetexceptflag (const fexcept_t *flagp, int excepts) 24 { 25 fpu_fpsr_t fpsr; 26 fpu_fpsr_t fpsr_new; 27 28 /* Get the current environment. */ 29 _FPU_GETFPSR (fpsr); 30 excepts &= FE_ALL_EXCEPT; 31 32 /* Set the desired exception mask. */ 33 fpsr_new = fpsr & ~excepts; 34 fpsr_new |= *flagp & excepts; 35 36 /* Save state back to the FPU. */ 37 if (fpsr != fpsr_new) 38 _FPU_SETFPSR (fpsr_new); 39 40 return 0; 41 } 42