The last element of the list 1

[jslmvl]

Hi,

I try to get the first and last elements of the list but I cannot get the last. Can you tell me why:

int main()
{
list<int> L;
L.push_back(1);
L.push_back(2);
cout<<*L.begin()<<*L.end()<<endl;
return 0;
}

 

[uolj]

end() returns an iterator to one past the end of the list. Assuming you know the list is not empty, you could use *(--end()), but a more clear solution might be to use front() and back() which actually return references to the values in the list instead of iterators:

cout<<L.front()<<L.back()<<endl;

 

[jslmvl]

I see.....thanks a lot.