24 Ranges library [ranges]

24.6 Range factories [range.factories]

24.6.4 Istream view [range.istream]

24.6.4.1 Overview [range.istream.overview]

basic_­istream_­view models input_­range and reads (using operator>>) successive elements from its corresponding input stream.
[Example:
auto ints = istringstream{"0 1  2   3     4"};
ranges::copy(istream_view<int>(ints), ostream_iterator<int>{cout, "-"});
// prints 0-1-2-3-4-
— end example]