lib/get-errno.c

   1 /* get-errno.c - get and set errno.
   2
   3    Copyright (C) 2002, 2006, 2009 Free Software Foundation, Inc.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation, either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program 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
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 /* Written by Paul Eggert.  */
  19
  20 #include <config.h>
  21
  22 #include "get-errno.h"
  23
  24 #include <errno.h>
  25
  26 /* Get and set errno.  A source file that needs to set or get errno,
  27    but doesn't need to test for specific errno values, can use these
  28    functions to avoid namespace pollution.  For example, a file that
  29    defines EQUAL should not include <errno.h>, since <errno.h> might
  30    define EQUAL; such a file can include <get-errno.h> instead.  */
  31
  32 int
  33 get_errno (void)
  34 {
  35   return errno;
  36 }
  37
  38 void
  39 set_errno (int e)
  40 {
  41   errno = e;
  42 }