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#include "common.h"
#include <wchar.h>
int main(int argc, char** argv) {
wchar_t buffer[8] = {0};
/* Safe: empty buffer, append 7 wide chars → exactly fills buffer */
wcsncat(buffer, L"ABCDEFG", 7);
printf("%ls\n", buffer);
/* Safe: reset, append with n larger than source.
* src is L"AB" (len 2), n=100 → only 2 wchars copied */
buffer[0] = L'\0';
wcsncat(buffer, L"AB", 100);
printf("%ls\n", buffer);
/* Safe: partially filled, append fits exactly.
* buffer = L"ABCD" (4 wchars), append L"EFG" n=3 → 4+3+1 = 8 = exact fit */
buffer[0] = L'\0';
wcsncat(buffer, L"ABCD", 4);
wcsncat(buffer, L"EFG", 3);
printf("%ls\n", buffer);
/* Safe: n limits copy to fit.
* buffer = L"ABCDE" (5 wchars), src long, n=2 → 5+2+1 = 8 = exact fit */
buffer[0] = L'\0';
wcsncat(buffer, L"ABCDE", 5);
wcsncat(buffer, L"FGHIJKLM", 2);
printf("%ls\n", buffer);
/* All safe operations passed without trapping */
return 0;
}
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