public member function
std::list::back
<list>
reference back ( );
const_reference back ( ) const;
Access last element
Returns a reference to the last element in the container.
Unlike member
list::end, which returns an iterator just past this element, this function returns a direct reference.
Parameters
none
Return value
A reference to the last element in the
list container.
Member types
reference and
const_reference are the reference types to the elements of the container (for the default storage allocation model,
allocator, these are
T& and
const T& respectively).
Example
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
|
// list::back
#include <iostream>
#include <list>
using namespace std;
int main ()
{
list<int> mylist;
mylist.push_back(10);
while (mylist.back() != 0)
{
mylist.push_back ( mylist.back() -1 );
}
cout << "mylist contains:";
for (list<int>::iterator it=mylist.begin(); it!=mylist.end() ; ++it)
cout << " " << *it;
cout << endl;
return 0;
}
|
Output:
mylist contains: 10 9 8 7 6 5 4 3 2 1 0
|
Complexity
Constant.
See also
- list::front
- Access first element (public member function)
- list::end
- Return iterator to end (public member function)
- list::push_back
- Add element at the end (public member function)
- list::pop_back
- Delete last element (public member function)