1  /* Install given floating-point environment.
       2     Copyright (C) 1997-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <fenv_libc.h>
      20  #include <fpu_control.h>
      21  
      22  int
      23  __fesetenv (const fenv_t *envp)
      24  {
      25    fenv_union_t old, new;
      26  
      27    /* get the currently set exceptions.  */
      28    new.fenv = *envp;
      29    old.fenv = fegetenv_control ();
      30  
      31    __TEST_AND_EXIT_NON_STOP (old.l, new.l);
      32    __TEST_AND_ENTER_NON_STOP (old.l, new.l);
      33  
      34    fesetenv_register (new.fenv);
      35  
      36    /* Success.  */
      37    return 0;
      38  }
      39  
      40  #include <shlib-compat.h>
      41  #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
      42  strong_alias (__fesetenv, __old_fesetenv)
      43  compat_symbol (libm, __old_fesetenv, fesetenv, GLIBC_2_1);
      44  #endif
      45  
      46  libm_hidden_def (__fesetenv)
      47  libm_hidden_ver (__fesetenv, fesetenv)
      48  versioned_symbol (libm, __fesetenv, fesetenv, GLIBC_2_2);