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* build-aux/gendocs.sh (version): * doc/gendocs_template: * doc/gendocs_template_min: * doc/gnulib.texi: * lib/version-etc.c (COPYRIGHT_YEAR): Update copyright dates by hand in templates and the like. * all files: Run 'make update-copyright'.
71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/* Test of fseek() function.
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Copyright (C) 2007-2017 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
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#include <config.h>
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/* None of the files accessed by this test are large, so disable the
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fseek link warning if the user requested GNULIB_POSIXCHECK. */
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#define _GL_NO_LARGE_FILES
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#include <stdio.h>
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#include "signature.h"
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SIGNATURE_CHECK (fseek, int, (FILE *, long, int));
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#include "macros.h"
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#ifndef FUNC_UNGETC_BROKEN
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# define FUNC_UNGETC_BROKEN 0
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#endif
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int
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main (int argc, char **argv)
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{
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/* Assume stdin is non-empty, seekable, and starts with '#!/bin/sh'
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iff argc > 1. */
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int expected = argc > 1 ? 0 : -1;
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ASSERT (fseek (stdin, 0, SEEK_CUR) == expected);
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if (argc > 1)
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{
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/* Test that fseek discards previously read ungetc data. */
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int ch = fgetc (stdin);
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ASSERT (ch == '#');
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ASSERT (ungetc (ch, stdin) == ch);
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ASSERT (fseek (stdin, 2, SEEK_SET) == 0);
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ch = fgetc (stdin);
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ASSERT (ch == '/');
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if (2 < argc)
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{
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if (FUNC_UNGETC_BROKEN)
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{
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fputs ("Skipping test: ungetc cannot handle arbitrary bytes\n",
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stderr);
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return 77;
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}
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/* Test that fseek discards random ungetc data. */
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ASSERT (ungetc (ch ^ 0xff, stdin) == (ch ^ 0xff));
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}
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ASSERT (fseek (stdin, 0, SEEK_END) == 0);
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ASSERT (fgetc (stdin) == EOF);
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/* Test that fseek resets end-of-file marker. */
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ASSERT (feof (stdin));
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ASSERT (fseek (stdin, 0, SEEK_END) == 0);
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ASSERT (!feof (stdin));
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}
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return 0;
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}
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