[boost] Re: Re: Re: rtl (Range Template Library)

From: Matthew Wilson (stlsoft_at_[hidden])
Date: 2003-11-20 05:35:44

> The idea I am pushing for here is that ranges ARE NOT pairs of iterators.
> Rather, a pair of iterators happens to make a good representation of a
> range, but may not be the only one.

Yes, I heartily agree.

(As I said in a previous post) I think the fundamentals of a range support
should facilitate the following:

some_range_type    r(. . .);

for(; r; ++r)
{
  *r; // Do something with the current position
}

This is very general, and therefore very powerful.

But to support such a "pure" range concept, we'd need mechanisms by which
those ranges that are implemented-in-terms-of iterators can use the standard
algorithms, whilst pure ranges use range-specific algorithms. I've not yet
considered whether the full gamut of current algorithms can be supported in
pure range form, though.

Matthew