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glibc  2.9
fesetenv.c
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00001 /* Install given floating-point environment.
00002    Copyright (C) 1997,98,99,2000,01,02 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.h>
00021 #include <fpu_control.h>
00022 
00023 int
00024 __fesetenv (const fenv_t *envp)
00025 {
00026   if (envp == FE_DFL_ENV)
00027     _FPU_SETCW (_FPU_DEFAULT);
00028   else
00029     {
00030       unsigned long int temp = envp->__cw;
00031       _FPU_SETCW (temp);
00032     }
00033 
00034   /* Success.  */
00035   return 0;
00036 }
00037 
00038 #include <shlib-compat.h>
00039 #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
00040 strong_alias (__fesetenv, __old_fesetenv)
00041 compat_symbol (libm, __old_fesetenv, fesetenv, GLIBC_2_1);
00042 #endif
00043 
00044 libm_hidden_ver (__fesetenv, fesetenv)
00045 versioned_symbol (libm, __fesetenv, fesetenv, GLIBC_2_2);