summaryrefslogtreecommitdiffstats
path: root/gl/lib/xstdopen.h
blob: c317bff606a858de2cdc79f95067c63bc8fee4f4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
/* Ensure that stdin, stdout, stderr are open.
   Copyright (C) 2019-2023 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */

#ifdef __cplusplus
extern "C" {
#endif

/* Ensures that the file descriptors of stdin, stdout, stderr (0, 1, 2) are
   open.  Exits the program with an error message upon failure; the error
   message may not appear if stderr is closed.  */
extern void xstdopen (void);

#ifdef __cplusplus
}
#endif