forward_list max_size() in C++ STL with Examples

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

Syntax:

forward_list_name.max_size()

Parameters: The function does not accept any parameters.

Return Value: The function returns the maximum number of elements the container can hold.

Below programs illustrate the above function:



Program 1:

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// CPP program to demonstrate the
// forward_list::max_size() function
// when the list is not-empty
#include <bits/stdc++.h>
using namespace std;
int main()
{
    // declaration of forward list
    forward_list<int> fl;
  
    // assign value
    fl.assign(5, 8);
  
    // prints the elements
    cout << "The forward_list elements: ";
  
    for (auto it = fl.begin(); it != fl.end(); it++)
        cout << *it << " ";
  
    cout << "\nThe max size: " << fl.max_size();
    return 0;
}

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Output:


The forward_list elements: 8 8 8 8 8 
The max size: 1152921504606846975





Program 1:  











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// CPP program to demonstrate the 


// forward_list::max_size() function 


// when the list is empty 


#include <bits/stdc++.h> 


using namespace std; 


int main() 


{ 


    // declaration of forward list 


    forward_list<int> fl; 


  


    cout << "\nThe max size: " << fl.max_size(); 


    return 0; 


} 



















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Output:


The max size: 1152921504606846975







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