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/* Ensure that stdin, stdout, stderr are open.
Copyright (C) 2019-2024 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
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