Subject: Re: [boost] AlRangeExandrescu?
From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2009-07-28 17:11:58
Andrei Alexandrescu wrote:
> Now here comes an interesting possibility. Boost::RangeEx also defines a
> typename Boost::RangeEx::iterator, and begin() and end() that return
> iterators. But it makes them optional! Meaning, as much as there are
> forward vs. bidirectional ranges, there are ranges that cloak iterators
> versus ranges that don't.
Would there be any reason for a range not to provide iterators except
those iterators being hard to write?
In case there is none, I don't think it's such a good idea to use
concept refining for a non conceptual difference, but rather an
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