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:
// 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;
} |
Output:
The forward_list elements: 8 8 8 8 8 The max size: 1152921504606846975
Program 1:
// 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;
} |
Output:
The max size: 1152921504606846975