1  /* Install given floating-point environment and raise exceptions.
       2     Copyright (C) 2012-2023 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  
      22  int
      23  __feupdateenv (const fenv_t *envp)
      24  {
      25    fpu_control_t temp;
      26  
      27    _FPU_GETCW (temp);
      28    temp = (temp & FE_ALL_EXCEPT);
      29  
      30    /* Raise the saved exception. Incidentally for us the implementation
      31      defined format of the values in objects of type fexcept_t is the
      32      same as the ones specified using the FE_* constants. */
      33    __fesetenv (envp);
      34    __feraiseexcept ((int) temp);
      35  
      36    return 0;
      37  }
      38  libm_hidden_def (__feupdateenv)
      39  weak_alias (__feupdateenv, feupdateenv)
      40  libm_hidden_weak (feupdateenv)