glibc/sysdeps/mips/fpu/fesetenv.c

/* Install given floating-point environment.
   Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Andreas Jaeger <aj@suse.de>, 1998.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#include <fenv.h>
#include <fpu_control.h>
#include <shlib-compat.h>

int
__fesetenv (const fenv_t *envp)
{
  fpu_control_t cw;

  /* Read first current state to flush fpu pipeline.  */
  _FPU_GETCW (cw);

  if (envp == FE_DFL_ENV)
    _FPU_SETCW (_FPU_DEFAULT);
  else if (envp == FE_NOMASK_ENV)
    _FPU_SETCW (_FPU_IEEE);
  else
    _FPU_SETCW (envp->__fp_control_register);

  /* Success.  */
  return 0;
}

#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
strong_alias (__fesetenv, __old_fesetenv)
compat_symbol (libm, __old_fesetenv, fesetenv, GLIBC_2_1);
#endif
versioned_symbol (libm, __fesetenv, fesetenv, GLIBC_2_2);