Function safe_vsnprintf

lib_acl_cpp/src/stdlib/snprintf.cpp:24–37

}

int safe_vsnprintf(char *buf, size_t size, const char *fmt, va_list ap)
{
	if (size == 0) {
		buf[0] = 0;
		return -1;
	}

	int ret = ::_vsnprintf_s(buf, size, _TRUNCATE, fmt, ap);
	if (ret < 0) {
		return -1;
	} else {
		return ret;
	}
}

# else