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glibc  2.9
fe_nomask.c
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00001 /* Procedure definition for FE_NOMASK_ENV.
00002    Copyright (C) 1997, 2008 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <fenv_libc.h>
00021 #include <errno.h>
00022 
00023 /* This is a generic stub. An OS specific override is required to set
00024    the FE0/FE1 bits in the MSR.  MSR update is privileged, so this will
00025    normally involve a syscall.  */
00026 
00027 const fenv_t *
00028 __fe_nomask_env(void)
00029 {
00030   __set_errno (ENOSYS);
00031   return FE_ENABLED_ENV;
00032 }
00033 libm_hidden_def (__fe_nomask_env)
00034 stub_warning (__fe_nomask_env)