1 | /* Test basic mbstowcs including wstring == NULL (Bug 25219). |
2 | Copyright (C) 2020-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <stdlib.h> |
20 | #include <string.h> |
21 | #include <support/check.h> |
22 | |
23 | static int |
24 | do_test (void) |
25 | { |
26 | char string[] = { '1', '2', '3' , '4', '5', '\0' }; |
27 | size_t len = strlen (string); |
28 | wchar_t wstring[] = { L'1', L'2', L'3', L'4', L'5', L'\0' }; |
29 | #define NUM_WCHAR 6 |
30 | wchar_t wout[NUM_WCHAR]; |
31 | size_t result; |
32 | |
33 | /* The input ASCII string in the C/POSIX locale must convert |
34 | to the matching WSTRING. */ |
35 | result = mbstowcs (pwcs: wout, s: string, NUM_WCHAR); |
36 | TEST_VERIFY (result == (NUM_WCHAR - 1)); |
37 | TEST_COMPARE_BLOB (wstring, sizeof (wchar_t) * (NUM_WCHAR - 1), |
38 | wout, sizeof (wchar_t) * result); |
39 | |
40 | /* The input ASCII string in the C/POSIX locale must be the |
41 | same length when using mbstowcs to compute the length of |
42 | the string required in the conversion. Using mbstowcs |
43 | in this way is an XSI extension to POSIX. */ |
44 | result = mbstowcs (NULL, s: string, n: len); |
45 | TEST_VERIFY (result == len); |
46 | |
47 | return 0; |
48 | } |
49 | |
50 | #include <support/test-driver.c> |
51 | |