std::list<T,Allocator>::pop_back

< cpp‎ | container‎ | list

void pop_back();

Removes the last element of the container.

Calling pop_back on an empty container results in undefined behavior.

References and iterators to the erased element are invalidated.

Parameters

(none)

Return value

(none)

Complexity

Constant.

Exceptions

Throws nothing.

Example

#include <list>
#include <iostream>
 
template<typename T>
void print(T const & xs)
{
    std::cout << "[ ";
    for(auto const& x : xs)
        std::cout << x << ' ';
    std::cout << "]\n";
}
 
int main()
{
    std::list<int> numbers;
 
    print(numbers);
 
    numbers.push_back(5);
    numbers.push_back(3);
    numbers.push_back(4);
 
    print(numbers);
 
    numbers.pop_back();
 
    print(numbers);
}

Output:

[ ]
[ 5 3 4 ]
[ 5 3 ]