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57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/* Test for freopen implementation.
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Copyright (C) 2000-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <mcheck.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <wchar.h>
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int
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main (int argc, char *argv[])
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{
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FILE *fp;
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mtrace ();
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if (argc < 2)
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exit (1);
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fp = fopen (argv[1], "w");
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if (fp == NULL)
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{
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puts ("fopen failed: %m");
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exit (1);
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}
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fputs ("Hello world (mb)\n", fp);
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fp = freopen (argv[1], "a+", fp);
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if (fp == NULL)
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{
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puts ("freopen failed: %m");
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exit (1);
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}
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fputws (L"Hello world (wc)\n", fp);
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fclose (fp);
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return 0;
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}
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