sysdeps/sh/sh4/fpu/feupdateenv.c

   1 /* Install given floating-point environment and raise exceptions.
   2    Copyright (C) 2012-2019 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #include <fenv.h>
  21 #include <fpu_control.h>
  22
  23 int
  24 __feupdateenv (const fenv_t *envp)
  25 {
  26   fpu_control_t temp;
  27
  28   _FPU_GETCW (temp);
  29   temp = (temp & FE_ALL_EXCEPT);
  30
  31   /* Raise the saved exception. Incidently for us the implementation
  32     defined format of the values in objects of type fexcept_t is the
  33     same as the ones specified using the FE_* constants. */
  34   __fesetenv (envp);
  35   __feraiseexcept ((int) temp);
  36
  37   return 0;
  38 }
  39 libm_hidden_def (__feupdateenv)
  40 weak_alias (__feupdateenv, feupdateenv)
  41 libm_hidden_weak (feupdateenv)