C++ Usage and examples of List back()

C++ List (List)

C ++ The List back() function returns the last element of the list. It provides a direct reference to the element.

Difference between back() and end() functions

The end() function returns an iterator to the element, while the back() function returns a direct reference to the same element.

Syntax

reference back();

Parameter

It does not contain any parameters.

Return value

It returns a direct reference to the last element.

Example

Let's see a simple example

Example

#include#include using namespace std;
int main()
{
　　　
　　　　std::list li={+','-','*','@'}';
　　　　std::cout << "back() is:" << li.back() << std::endl;
　　　　return 0;
}

Output:

back() is: @

In this example, the back() function returns the direct reference to the last element of the list, that is, @.

C++ List (List)