*-map tests: Fix compilation error.
[gnulib.git] / lib / freadseek.h
blob15cdb14271830c39b2b4dfe6601efbda7d5874fc
1 /* Skipping input from a FILE stream.
2 Copyright (C) 2007-2019 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
17 #include <stddef.h>
18 #include <stdio.h>
20 #ifdef __cplusplus
21 extern "C" {
22 #endif
24 /* Assuming the stream STREAM is open for reading:
26 Read and discard OFFSET bytes from STREAM.
28 freadseek (STREAM, OFFSET) is the same as
29 fseek (STREAM, OFFSET, SEEK_CUR), except that the latter does not work
30 on non-seekable input streams (such as pipes).
32 Upon success, return 0.
33 Upon premature end of stream, return 0 (like fseek does).
34 Upon error, set the error indicator in the stream and return EOF.
36 STREAM must not be wide-character oriented. */
38 extern int freadseek (FILE *stream, size_t offset);
40 #ifdef __cplusplus
42 #endif