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Date :
2025-01-01T09:24:36
maint: run 'make update-copyright'
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/* Test of wcsncat() function.
Copyright (C) 2010-2025 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2024. */
#include <config.h>
/* Specification. */
#include <wchar.h>
#include <stddef.h>
#include "macros.h"
/* Test the library, not the compiler+library. */
static wchar_t *
lib_wcsncat (wchar_t *ws1, wchar_t const *ws2, size_t n)
{
return wcsncat (ws1, ws2, n);
}
static wchar_t *(*volatile volatile_wcsncat) (wchar_t *, wchar_t const *,
size_t)
= lib_wcsncat;
#undef wcsncat
#define wcsncat volatile_wcsncat
int
main ()
{
/* Test zero-length operations on NULL pointers, allowed by
<https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3322.pdf>. */
#if 0 /* I think this is invalid, per ISO C 23 § 7.31.4.3.2. */
ASSERT (wcsncat (NULL, L"x", 0) == NULL);
#endif
{
wchar_t y[2] = { L'x', 0 };
ASSERT (wcsncat (y, NULL, 0) == y);
}
return test_exit_status;
}