< cpp‎ | container‎ | deque

void push_back( const T& value );
void push_back( T&& value );
(2) (since C++11)

Appends the given element value to the end of the container.

1) The new element is initialized as a copy of value.
2) value is moved into the new element.

All iterators, including the past-the-end iterator, are invalidated. No references are invalidated.


[edit] Parameters

value - the value of the element to append
Type requirements
T must meet the requirements of CopyInsertable in order to use overload (1).
T must meet the requirements of MoveInsertable in order to use overload (2).

[edit] Return value


[edit] Complexity


[edit] Exceptions

If an exception is thrown, this function has no effect (strong exception guarantee).

[edit] Example

#include <deque>
#include <iostream>
#include <iomanip>
int main()
    std::deque<std::string> numbers;
    std::string s = "def";
    std::cout << "deque holds: ";
    for (auto&& i : numbers) std::cout << std::quoted(i) << ' ';
    std::cout << "\nMoved-from string holds " << std::quoted(s) << '\n';


deque holds: "abc" "def" 
Moved-from string holds ""

[edit] See also

constructs an element in-place at the end
(public member function)
inserts an element to the beginning
(public member function)
removes the last element
(public member function)