Re: [boost] [range] RFC: span(iterator, size)

30 Oct 2013


      30.10.2013 11:29, TONGARI J:
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1. So, span(first, n) and span(next(first), n) will result in "equal"
iterators?
if you mean begin-or-end(span(first, n)) == begin-or-end(span(next(first),
n)), then yes, but it's pathic.
Yes, that what I mean. This limitation should be placed as warning.
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Especially you mentioned that you plan to preserve same range category as
original iterator has - what about BidirectionalIterators?
That's my mistake, they should be ForwardIterators.
1. What about RandomAccessIterators?
2. Imagine if we have std::list x with 10 elements. Will dereference of 
end(span(begin(x), 5)) be undefined?

-- 
Evgeny Panasyuk