| 13 | #include <assert.h> |
| 14 | |
| 15 | void test_vswprintf(const wchar_t *format, ...) { |
| 16 | wchar_t buffer[256]; |
| 17 | va_list args; |
| 18 | va_start(args, format); |
| 19 | int n = vswprintf(buffer, 256, format, args); |
| 20 | fputws(buffer, stdout); |
| 21 | va_end(args); |
| 22 | wprintf(L"number of characters in above string: %d. errno: %d\n", n, errno); |
| 23 | assert(n == 24); |
| 24 | assert(errno == 0); |
| 25 | } |
| 26 | |
| 27 | int main() { |
| 28 | setlocale(LC_ALL, ""); |