static const char* Format(const char* formatString, ...) CUSTOM_PRINTF(1, 2);
static const char* Format(va_list &vaList, const char* formatString) CUSTOM_PRINTF(2, 0);
static const char* Format(const char* formatString, ...) CUSTOM_PRINTF(1, 2);
static const char* Format(va_list &vaList, const char* formatString) CUSTOM_PRINTF(2, 0);