C++ iterator to const_iterator

Question

How do I acquire a const_iterator (of some container class) from an iterator (of that container class) in C++? What about a const_iterator

Answer 1

You can convert them. Example:

std::vector v;
std::vector::iterator it = v.begin();
std::vector::const_iterator cit = it;

But I guess that is not the answer you are seeking. Show me code. :-)