Re: [boost] [iterator adaptor] requires default constructor?

AMDG Neal Becker wrote:

It seems an iterator requires a default constructor in order to be adapted by iterator adaptor.

This is due to (iterator_adaptor.hpp):279

iterator_adaptor() {}

Is this really necessary?

I would have thought that this constructor wouldn't be instantiated if it weren't used. I believe that the standard requires a default constructor for Forward Iterators. In Christ, Steven Watanabe