C++ iterator and const_iterator problem for own container class

Question

I\'m writing an own container class and have run into a problem I can\'t get my head around. Here\'s the bare-bone sample that shows the problem.

It consists of a con

Answer 1

In containers iterator type must be convertible to const_iterator. It is needed for the cases where you iterate through a mutable container using a non-mutable (const) iterator as this makes perfect sense. In your case myc is mutable (non-const), but you create a const iterator on that.