sysdeps/mips/fpu/feupdateenv.c

   1 /* Install given floating-point environment and raise exceptions.
   2    Copyright (C) 1998-2024 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   int temp;
  26
  27   /* Save current exceptions.  */
  28   _FPU_GETCW (temp);
  29   temp &= FE_ALL_EXCEPT;
  30
  31   /* Install new environment.  */
  32   __fesetenv (envp);
  33
  34   /* Raise the saved exception.  Incidentally for us the implementation
  35      defined format of the values in objects of type fexcept_t is the
  36      same as the ones specified using the FE_* constants.  */
  37   __feraiseexcept (temp);
  38
  39   /* Success.  */
  40   return 0;
  41 }
  42 libm_hidden_def (__feupdateenv)
  43 weak_alias (__feupdateenv, feupdateenv)
  44 libm_hidden_weak (feupdateenv)