David Abrahams wrote:
"Robert Ramey" <ramey@rrsd.com> writes:
How are these different from many of the iterators provided by http://www.boost.org/libs/iterator, particularly transform_iterator?
http://www.boost.org/libs/serialization/doc/index.html describes this. All the "dataflow iterators" are derived from boost.iterator. For some I derived from transform iterator for others I derived from filter and I forget the rest. Aside from implementing the transforming behavior required for the specific instance, the only real addition is the requirement that all of them have a templated constructor. This simple addition made all the difference for me. This permitted me to compose them to any ressonable depth and sequence with just one (rather long) typedef into a new iterator which can be used just as easily as any other. Robert Ramey