1  /* Store current floating-point environment and clear exceptions.
       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  
      21  int
      22  __feholdexcept (fenv_t *envp)
      23  {
      24    /* Save the current state.  */
      25    __fegetenv(envp);
      26  
      27    /* Clear all exception status bits and exception enable bits.  */
      28    __ieee_set_fp_control(*envp & SWCR_MAP_MASK);
      29  
      30    return 0;
      31  }
      32  libm_hidden_def (__feholdexcept)
      33  weak_alias (__feholdexcept, feholdexcept)
      34  libm_hidden_weak (feholdexcept)