1  /* get-errno.c - get and set errno.
       2  
       3     Copyright (C) 2002, 2006, 2009-2015, 2018-2021 Free Software
       4     Foundation, Inc.
       5  
       6     This program is free software: you can redistribute it and/or modify
       7     it under the terms of the GNU General Public License as published by
       8     the Free Software Foundation, either version 3 of the License, or
       9     (at your option) any later version.
      10  
      11     This program is distributed in the hope that it will be useful,
      12     but WITHOUT ANY WARRANTY; without even the implied warranty of
      13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14     GNU General Public License for more details.
      15  
      16     You should have received a copy of the GNU General Public License
      17     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      18  
      19  /* Written by Paul Eggert.  */
      20  
      21  #include <config.h>
      22  
      23  #include "get-errno.h"
      24  
      25  #include <errno.h>
      26  
      27  /* Get and set errno.  A source file that needs to set or get errno,
      28     but doesn't need to test for specific errno values, can use these
      29     functions to avoid namespace pollution.  For example, a file that
      30     defines EQUAL should not include <errno.h>, since <errno.h> might
      31     define EQUAL; such a file can include <get-errno.h> instead.  */
      32  
      33  int
      34  get_errno (void)
      35  {
      36    return errno;
      37  }
      38  
      39  void
      40  set_errno (int e)
      41  {
      42    errno = e;
      43  }