Hi Akira,
2013/10/30 Akira Takahashi
Hi,
2013/10/30 TONGARI J
Hi there,
I want to query if there's any interest in such a utility:
span(iterator, size) : iterator_range
which simply returns iterator_range(it, it + size) for RandomAccessIterator; for others modeling ForwardIterator, a special iterator adaptor, say, counted_iterator is used, so we don't have to advance it just for getting the end iterator.
Thoughts?
I & Nail will add `taken` range adaptor.
http://dl.dropboxusercontent.com/u/1682460/git/OvenToBoost/libs/range/doc/ht...
https://github.com/faithandbrave/OvenToBoost/blob/master/boost/range/adaptor...
v = {1, 2, 3, 4, 5}; r | taken(3); // {1, 2, 3}
Also, I have iterator adaptor version (internal).
I don't think this is what I want, but the underlying iterator may be similar to what I called 'counted_iterator', I'm not sure. So, 'span' is a utility function that generates a range from an iterator & size, unlike 'taken' which is an adaptor from another range. If you can provide the 'span' utility as well, that'll be great :) Thanks,