sysdeps/mips/feupdateenv.c

   1 /* Install given floating-point environment and raise exceptions.
   2    Copyright (C) 1998 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Andreas Jaeger <aj@arthur.rhein-neckar.de>, 1998.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Library General Public License as
   8    published by the Free Software Foundation; either version 2 of the
   9    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    Library General Public License for more details.
  15
  16    You should have received a copy of the GNU Library General Public
  17    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  18    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #include <fenv.h>
  22 #include <fpu_control.h>
  23
  24 void
  25 feupdateenv (const fenv_t *envp)
  26 {
  27   int temp;
  28
  29   /* Save current exceptions.  */
  30   _FPU_GETCW (temp);
  31   temp &= FE_ALL_EXCEPT;
  32
  33   /* Install new environment.  */
  34   fesetenv (envp);
  35
  36   /* Raise the safed exception.  Incidently for us the implementation
  37      defined format of the values in objects of type fexcept_t is the
  38      same as the ones specified using the FE_* constants.  */
  39   feraiseexcept (temp);
  40 }