mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 17:53:37 +08:00
94 lines
3.7 KiB
C
94 lines
3.7 KiB
C
/* Test the wcslcat function.
|
|
Copyright (C) 2023-2024 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 <array_length.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <support/check.h>
|
|
#include <wchar.h>
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
struct {
|
|
wchar_t buf1[16];
|
|
wchar_t buf2[16];
|
|
} s;
|
|
|
|
/* Nothing is written to the destination if its size is 0. */
|
|
wmemset (s.buf1, '@', array_length (s.buf1));
|
|
wmemset (s.buf2, '@', array_length (s.buf2));
|
|
TEST_COMPARE (wcslcat (s.buf1, L"", 0), 0);
|
|
TEST_COMPARE_BLOB (&s, sizeof (s), L"@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@", 128);
|
|
TEST_COMPARE (wcslcat (s.buf1, L"Hello!", 0), 6);
|
|
TEST_COMPARE_BLOB (&s, sizeof (s), L"@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@", 128);
|
|
|
|
/* No bytes are are modified in the target buffer if the source
|
|
string is short enough. */
|
|
wmemset (s.buf1, '@', array_length (s.buf1));
|
|
wmemset (s.buf2, '@', array_length (s.buf2));
|
|
wcscpy (s.buf1, L"He");
|
|
TEST_COMPARE (wcslcat (s.buf1, L"llo!", array_length (s.buf1)), 6);
|
|
TEST_COMPARE_BLOB (&s, sizeof (s), L"Hello!\0@@@@@@@@@@@@@@@@@@@@@@@@@", 128);
|
|
|
|
/* A source string which fits exactly into the destination buffer is
|
|
not truncated. */
|
|
wmemset (s.buf1, '@', array_length (s.buf1));
|
|
wmemset (s.buf2, '@', array_length (s.buf2));
|
|
wcscpy (s.buf1, L"H");
|
|
TEST_COMPARE (wcslcat (s.buf1, L"ello, world!!!", array_length (s.buf1)),
|
|
15);
|
|
TEST_COMPARE_BLOB (&s, sizeof (s),
|
|
L"Hello, world!!!\0@@@@@@@@@@@@@@@@@@@@@@@@@", 128);
|
|
|
|
/* A source string one character longer than the destination buffer
|
|
is truncated by one character. The total length is returned. */
|
|
wmemset (s.buf1, '@', array_length (s.buf1));
|
|
wmemset (s.buf2, '@', array_length (s.buf2));
|
|
wcscpy (s.buf1, L"Hello");
|
|
TEST_COMPARE (wcslcat (s.buf1, L", world!!!!", array_length (s.buf1)), 16);
|
|
TEST_COMPARE_BLOB (&s, sizeof (s),
|
|
L"Hello, world!!!\0@@@@@@@@@@@@@@@@@@@@@@@@@", 128);
|
|
|
|
/* An even longer source string is truncated as well, and the total
|
|
length is returned. */
|
|
wmemset (s.buf1, '@', array_length (s.buf1));
|
|
wmemset (s.buf2, '@', array_length (s.buf2));
|
|
wcscpy (s.buf1, L"Hello,");
|
|
TEST_COMPARE (wcslcat (s.buf1, L" world!!!!!!!!", array_length (s.buf1)),
|
|
20);
|
|
TEST_COMPARE_BLOB (&s, sizeof (s),
|
|
L"Hello, world!!!\0@@@@@@@@@@@@@@@@@@@@@@@@@", 128);
|
|
|
|
/* A destination string which is not NUL-terminated does not result
|
|
in any changes to the buffer. */
|
|
wmemset (s.buf1, '$', array_length (s.buf1));
|
|
wmemset (s.buf2, '@', array_length (s.buf2));
|
|
TEST_COMPARE (wcslcat (s.buf1, L"", array_length (s.buf1)), 16);
|
|
TEST_COMPARE_BLOB (&s, sizeof (s), L"$$$$$$$$$$$$$$$$@@@@@@@@@@@@@@@@", 128);
|
|
TEST_COMPARE (wcslcat (s.buf1, L"Hello!", array_length (s.buf1)), 22);
|
|
TEST_COMPARE_BLOB (&s, sizeof (s), L"$$$$$$$$$$$$$$$$@@@@@@@@@@@@@@@@", 128);
|
|
TEST_COMPARE (wcslcat (s.buf1, L"Hello, world!!!!!!!!",
|
|
array_length (s.buf1)), 36);
|
|
TEST_COMPARE_BLOB (&s, sizeof (s), L"$$$$$$$$$$$$$$$$@@@@@@@@@@@@@@@@", 128);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|