__SIZE_T_MAX
return (__SIZE_T_MAX - sz < left || right < left + sz);
return (__SIZE_T_MAX - sz < right || left < right + sz);
if (len > __SIZE_T_MAX / sizeof(wchar_t))
#define SIZE_T_MAX __SIZE_T_MAX /* max value for a size_t */
nmemb > 0 && __SIZE_T_MAX / nmemb < size);