diff options
Diffstat (limited to 'wcsmbs')
| -rw-r--r-- | wcsmbs/Makefile | 2 | ||||
| -rw-r--r-- | wcsmbs/tst-mbstowcs.c | 50 |
2 files changed, 51 insertions, 1 deletions
diff --git a/wcsmbs/Makefile b/wcsmbs/Makefile index f02167fa58..e638e45522 100644 --- a/wcsmbs/Makefile +++ b/wcsmbs/Makefile @@ -52,7 +52,7 @@ tests := tst-wcstof wcsmbs-tst1 tst-wcsnlen tst-btowc tst-mbrtowc \ tst-c16c32-1 wcsatcliff tst-wcstol-locale tst-wcstod-nan-locale \ tst-wcstod-round test-char-types tst-fgetwc-after-eof \ tst-wcstod-nan-sign tst-c16-surrogate tst-c32-state \ - $(addprefix test-,$(strop-tests)) + $(addprefix test-,$(strop-tests)) tst-mbstowcs include ../Rules diff --git a/wcsmbs/tst-mbstowcs.c b/wcsmbs/tst-mbstowcs.c new file mode 100644 index 0000000000..b48891553e --- /dev/null +++ b/wcsmbs/tst-mbstowcs.c @@ -0,0 +1,50 @@ +/* Test basic mbstowcs including wstring == NULL (Bug 25219). + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#include <stdlib.h> +#include <string.h> +#include <support/check.h> + +static int +do_test (void) +{ + char string[] = { '1', '2', '3' , '4', '5', '\0' }; + size_t len = strlen (string); + wchar_t wstring[] = { L'1', L'2', L'3', L'4', L'5', L'\0' }; +#define NUM_WCHAR 6 + wchar_t wout[NUM_WCHAR]; + size_t result; + + /* The input ASCII string in the C/POSIX locale must convert + to the matching WSTRING. */ + result = mbstowcs (wout, string, NUM_WCHAR); + TEST_VERIFY (result == (NUM_WCHAR - 1)); + TEST_COMPARE_BLOB (wstring, sizeof (wchar_t) * (NUM_WCHAR - 1), + wout, sizeof (wchar_t) * result); + + /* The input ASCII string in the C/POSIX locale must be the + same length when using mbstowcs to compute the length of + the string required in the conversion. Using mbstowcs + in this way is an XSI extension to POSIX. */ + result = mbstowcs (NULL, string, len); + TEST_VERIFY (result == len); + + return 0; +} + +#include <support/test-driver.c> |