sysdeps/sparc/fpu/feholdexcpt.c

   1 /* Store current floating-point environment and clear exceptions.
   2    Copyright (C) 1997-2014 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    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <fenv.h>
  20
  21 int
  22 feholdexcept (fenv_t *envp)
  23 {
  24   fenv_t tmp;
  25
  26   __fenv_stfsr (*envp);
  27
  28   /* Set all exceptions to non-stop and clear all exceptions.  */
  29   tmp = *envp & ~((0x1f << 23) | FE_ALL_EXCEPT);
  30
  31   __fenv_ldfsr (tmp);
  32
  33   return 0;
  34 }
  35 libm_hidden_def (feholdexcept)