sysdeps/s390/fpu/feupdateenv.c

   1 /* Install given floating-point environment and raise exceptions.
   2    Copyright (C) 2000 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
   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, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21
  22 #include <fenv_libc.h>
  23 #include <fpu_control.h>
  24
  25 int
  26 feupdateenv (const fenv_t *envp)
  27 {
  28   fexcept_t temp;
  29
  30   _FPU_GETCW (temp);
  31   temp = (temp & FPC_FLAGS_MASK) >> FPC_FLAGS_SHIFT;
  32
  33   /* Raise the exceptions since the last call to feholdenv  */
  34   /* re install saved environment.  */
  35   fesetenv (envp);
  36   feraiseexcept ((int) temp);
  37
  38   /* Success.  */
  39   return 0;
  40 }