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

void pop_back();

Removes the last element of the container.

Calling pop_back on an empty container is undefined.

No iterators or references except for back() and end() are invalidated.

Parameters

(none).

Return value

(none).

Complexity

Constant.

Exceptions

(none).

Example

#include <vector>
#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::vector<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

adds an element to the end
(public member function)

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http://en.cppreference.com/w/cpp/container/vector/pop_back