C++ List max_size()

size_type max_size();

#include <iostream>
#include<list>
using namespace std;
int main()
{
    list<int> li={9,10,11};
    std::cout << "size of the list is: " << li.max_size()<<std::endl;
    return 0;
}

size of the list is: 768614336404564650