Writing wrappers around stl classes with iterators in c?

I wouldn't write a wrapper for std::vector and std::list in this case for the sole purpose of using std::list or std::vector uniformly. You don't need to. What you want is to use type erasure in a similar way to what you can find here .

MyCollection::begin should return a MyCollection::iterator, by convention. Therefore MyVector::begin() should return something that's at least a MyCollection::iterator, too. It may be a more derived type, though.

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