sysdeps/sh/sh4/fpu/feupdateenv.c

   1 /* Install given floating-point environment and raise exceptions.
   2    Copyright (C) 2012-2024 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   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)