24 Ranges library [ranges]

24.6 Range factories [range.factories]

24.6.4 Iota view [range.iota]

24.6.4.1 Overview [range.iota.overview]

iota_­view generates a sequence of elements by repeatedly incrementing an initial value.
The name views​::​iota denotes a customization point object ([customization.point.object]).
Given subexpressions E and F, the expressions views​::​iota(E) and views​::​iota(E, F) are expression-equivalent to iota_­view(E) and iota_­view(E, F), respectively.
[Example 1: for (int i : views::iota(1, 10)) cout << i << ' '; // prints: 1 2 3 4 5 6 7 8 9 — end example]