std::deque<T,Allocator>:: push_back

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

All iterators (including the end() iterator) are invalidated. No references are invalidated.

Parameters

Return value

(none)

Complexity

Constant.

Exceptions

If an exception is thrown (which can be due to Allocator::allocate() or element copy/move constructor/assignment), this function has no effect ( strong exception guarantee ).

Example

#include <iomanip>
#include <iostream>
#include <string>
#include <deque>
 
int main()
{
    std::deque<std::string> letters;
 
    letters.push_back("abc");
    std::string s{"def"};
    letters.push_back(std::move(s));
 
    std::cout << "std::deque letters holds: ";
    for (auto&& e : letters)
        std::cout << std::quoted(e) << ' ';
 
    std::cout << "\nMoved-from string s holds: " << std::quoted(s) << '\n';
}

std::deque letters holds: "abc" "def"
Moved-from string s holds: ""

See also