RE: [boost] iterator_adaptors.hpp/transform_iterator

From: John E. Potter (jpotter_at_[hidden])
Date: 2001-03-27 12:01:03

On Tue, 27 Mar 2001, Gary Powell wrote:

> However when we were constructing view policies dependent on the iterator
> type, I came across this problem, and that is, transform_iterator_generator
> specifies that iterator_adaptor has as an iterator tag type,
> "std::input_iterator_tag"
> 
> VTL really needs this to be whatever the tag of the class Iterator that is
> passed in as a template argument. As in
> std::iterator_traits<Iterator>::iterator_category
> 
> Is there a reason it's only a std::input_iterator_tag?

The only std::iterator with value semantics is input_iterator.  All of the
others have reference semantics.

See Jeremy's recent proposal to change to two traits so that increment
and dereference can be independently specified.

John