sysdeps/sparc/fpu/feholdexcpt.c

   1 /* Store current floating-point environment and clear exceptions.
   2    Copyright (C) 1997, 1998, 2005, 2007 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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <fenv.h>
  21
  22 int
  23 feholdexcept (fenv_t *envp)
  24 {
  25   fenv_t tmp;
  26
  27   __fenv_stfsr (*envp);
  28
  29   /* Set all exceptions to non-stop and clear all exceptions.  */
  30   tmp = *envp & ~((0x1f << 23) | FE_ALL_EXCEPT);
  31
  32   __fenv_ldfsr (tmp);
  33
  34   return 0;
  35 }
  36 libm_hidden_def (feholdexcept)