Re: [boost] Breaking existing libraries

Some one has already proposed boost::old_iterator_range and if I remember well you have proposed boost::deprecated::iterator_range.

"I guess The old behavior could be supplied in <boost/range/deprecated/iterator_range.hpp> in namespace boost::deprecated. Again, it is a matter of time."

IMHO, I don't think the behaviour should be classed as "deprecated". Deprecated means "it's been superceded". In this case, the old behaviour is just gone, it's not superceded by something else.