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

Returns a reference to the last element in the container.

Calling back on an empty container causes undefined behavior.

Parameters

(none)

Return value

Reference to the last element.

Complexity

Constant.

Notes

For a non-empty container c, the expression c.back() is equivalent to * std::prev (c.end ( ) )

Example

#include <cassert>
#include <deque>
 
int main()
{
    std::deque<char> letters{'a', 'b', 'c', 'd'};
    assert(letters.back() == 'd');
}

See also