fe_mask.c

来自「linux下的C语言库源码有一百多M解压后很不错」· C语言 代码 · 共 34 行

/* Procedure definition for FE_MASK_ENV.
   Copyright (C) 2007 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 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
   Lesser General Public License for more details.

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

#include <fenv.h>
#include <errno.h>

/* This is a generic stub. An OS specific override is required to clear
   the FE0/FE1 bits in the MSR.  MSR update is privileged, so this will
   normally involve a syscall.  */

const fenv_t *
__fe_mask_env(void)
{
  __set_errno (ENOSYS);
  return FE_DFL_ENV;
}
stub_warning (__fe_mask_env)