ports/sysdeps/am33/fpu/feupdateenv.c

   1 /* Install given floating-point environment and raise exceptions.
   2    Copyright (C) 1998-2014 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Alexandre Oliva <aoliva@redhat.com>
   5    based on corresponding file in the MIPS port.
   6
   7    The GNU C Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Lesser General Public
   9    License as published by the Free Software Foundation; either
  10    version 2.1 of the License, or (at your option) any later version.
  11
  12    The GNU C Library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Lesser General Public License for more details.
  16
  17    You should have received a copy of the GNU Lesser General Public
  18    License along with the GNU C Library.  If not, see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21 #include <fenv.h>
  22 #include <fpu_control.h>
  23 #include <shlib-compat.h>
  24
  25 int
  26 __feupdateenv (const fenv_t *envp)
  27 {
  28   int temp;
  29
  30   /* Save current exceptions.  */
  31   _FPU_GETCW (temp);
  32   temp &= FE_ALL_EXCEPT;
  33
  34   /* Install new environment.  */
  35   fesetenv (envp);
  36
  37   /* Raise the safed exception.  Incidently for us the implementation
  38      defined format of the values in objects of type fexcept_t is the
  39      same as the ones specified using the FE_* constants.  */
  40   feraiseexcept (temp);
  41
  42   /* Success.  */
  43   return 0;
  44 }
  45
  46 versioned_symbol (libm, __feupdateenv, feupdateenv, GLIBC_2_2);