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array::back() function with Example in C++ STL

C++ STL | array::back() function: Here, we are going to learn about the back() function of Array in C++ STL.
Submitted by IncludeHelp, on February 28, 2019

C++ STL array::back() function

back() function is a library function of array and it is used to get the last element of an array, it returns the reference to the last element in an array.

Syntax:

    array_name.back();

Parameters: None

Return value: It returns a reference to the last element of array_name.

Example:

    Input or array declaration:
    array<int,5> values {10, 20, 30, 40, 50};

    Function call:
    values.back();

    Output:
    50

C++ STL program to get the last element of an array using array:back()

#include <array>
#include <iostream>
using namespace std;

int main()
{
	array<int,5> values {10, 20, 30, 40, 50};
    
	//printing first element
	cout<<"Last element is: "<<values.back()<<endl;

	return 0;
}

Output

Last element is: 50