1  /* Set given exception flags.  ARM version.
       2     Copyright (C) 2016-2023 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 <fpu_control.h>
      21  #include <arm-features.h>
      22  
      23  int
      24  fesetexcept (int excepts)
      25  {
      26    fpu_control_t fpscr, new_fpscr;
      27  
      28    /* Fail if a VFP unit isn't present unless nothing needs to be done.  */
      29    if (!ARM_HAVE_VFP)
      30      return (excepts != 0);
      31  
      32    _FPU_GETCW (fpscr);
      33    new_fpscr = fpscr | (excepts & FE_ALL_EXCEPT);
      34    if (new_fpscr != fpscr)
      35      _FPU_SETCW (new_fpscr);
      36  
      37    return 0;
      38  }