51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
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/* Test basic mbstowcs including wstring == NULL (Bug 25219).
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Copyright (C) 2020-2022 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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#include <stdlib.h>
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#include <string.h>
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#include <support/check.h>
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static int
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do_test (void)
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{
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char string[] = { '1', '2', '3' , '4', '5', '\0' };
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size_t len = strlen (string);
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wchar_t wstring[] = { L'1', L'2', L'3', L'4', L'5', L'\0' };
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#define NUM_WCHAR 6
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wchar_t wout[NUM_WCHAR];
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size_t result;
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/* The input ASCII string in the C/POSIX locale must convert
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to the matching WSTRING. */
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result = mbstowcs (wout, string, NUM_WCHAR);
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TEST_VERIFY (result == (NUM_WCHAR - 1));
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TEST_COMPARE_BLOB (wstring, sizeof (wchar_t) * (NUM_WCHAR - 1),
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wout, sizeof (wchar_t) * result);
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/* The input ASCII string in the C/POSIX locale must be the
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same length when using mbstowcs to compute the length of
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the string required in the conversion. Using mbstowcs
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in this way is an XSI extension to POSIX. */
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result = mbstowcs (NULL, string, len);
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TEST_VERIFY (result == len);
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return 0;
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}
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#include <support/test-driver.c>
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