----- Original Message ----- From: "AlisdairM" <alisdair.meredith@uk.renaultf1.com> To: <boost@lists.boost.org> Sent: Wednesday, March 15, 2006 2:06 PM Subject: Re: [boost] distance operation (24.3.4)
This is specially evident when IteratorT is [const] char *, which is a valid random access iterator.
Why do you think const char * is a valid random access iterator?
It is merely an input iterator, and one of the many motivations for improved iterator categories.
(Basically, no const-iterator can ever be more than an input iterator, as bidirectional iterator refines both input *and* output iterator. All the more advanced iterators are refinements of bidirectional.)
Maybe I misunderstood you. Could you care to explain why const char * is NOT a valid random access iterator. 24.3.1.2 clearly states otherwise. Thanks, Sean