multimap maxsize() in C++ STL

The multimap::max_size() is a built-in function in C++ STL which returns the maximum number of elements a multimap container can hold.



Parameters: This function does not accept any parameters.

Return Value: This function returns the maximum number of elements a list container can hold.





// C++ program to illustrate
// multiset::max_size()
#include <bits/stdc++.h>
using namespace std;
int main()
    // initialize container
    multimap<int, int> mp1, mp2;
    cout << "The max size of mp1 is " << mp1.max_size();
    cout << "\nThe max size of mp2 is " << mp2.max_size();
    return 0;



The max size of mp1 is 461168601842738790
The max size of mp2 is 461168601842738790

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