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

 

C++

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std::list

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std::swap

eraseerase_if (C++20)(C++20)

operator==operator!=operator<operator>operator<=operator>=operator<=> (until C++20)(until C++20)(until C++20)(until C++20)(until C++20)(C++20)

Deduction guides(C++17)

 

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

Run this code

#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 ]

See also

pop_front	removes the first element (public member function)
push_back	adds an element to the end (public member function)