std::deque pop_back() method
- od C++98
// Non const version only
void pop_back();
Removes the last element of the container.
Calling pop_back
on an empty container results in undefined behavior
- od C++11
- do C++11
Iterators and references to the erased element are invalidated.
The past-the-end iterator is also invalidated.
Other references and iterators are not affected.
Iterators and references to the erased element are invalidated.
It is unspecified whether the past-the-end iterator is invalidated.
Other references and iterators are not affected.
Parameters
(none)
Return value
(none)
Complexity
Constant - O(1).
Exceptions
(none)
Example
#include <deque>
#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::deque<int> numbers;
print(numbers);
numbers.push_back(5);
numbers.push_back(3);
numbers.push_back(4);
print(numbers);
numbers.pop_back();
print(numbers);
}
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