82 lines
2.0 KiB
C
82 lines
2.0 KiB
C
/* Test that assigning to stdout redirects puts, putchar, etc (BZ#24051)
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Copyright (C) 2019-2022 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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/* Prevent putchar -> _IO_putc inline expansion. */
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#define __NO_INLINE__
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#pragma GCC optimize("O0")
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#include <stdio.h>
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#include <string.h>
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#include <wchar.h>
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#include <array_length.h>
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#include <support/check.h>
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#include <support/temp_file.h>
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#include <support/test-driver.h>
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#undef putchar
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#undef putwchar
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static int
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do_test_narrow (void)
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{
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char buf[100];
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int fd = create_temp_file ("tst-bz24051", NULL);
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stdout = fdopen (fd, "w+");
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TEST_VERIFY_EXIT (stdout != NULL);
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printf ("ab%s", "cd");
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putchar ('e');
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putchar_unlocked ('f');
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puts ("ghi");
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rewind (stdout);
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TEST_VERIFY_EXIT (fgets (buf, sizeof (buf), stdout) != NULL);
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TEST_VERIFY (strcmp (buf, "abcdefghi\n") == 0);
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return 0;
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}
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static int
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do_test_wide (void)
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{
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wchar_t buf[100];
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int fd = create_temp_file ("tst-bz24051w", NULL);
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stdout = fdopen (fd, "w+");
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TEST_VERIFY_EXIT (stdout != NULL);
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wprintf (L"ab%ls", L"cd");
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putwchar (L'e');
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putwchar_unlocked (L'f');
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rewind (stdout);
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TEST_VERIFY_EXIT (fgetws (buf, array_length (buf), stdout) != NULL);
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TEST_VERIFY (wcscmp (buf, L"abcdef") == 0);
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return 0;
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}
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static int
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do_test (void)
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{
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return do_test_narrow () + do_test_wide ();
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}
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#include <support/test-driver.c>
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