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cppdraft/coroutine/generator/overview.md

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+[coroutine.generator.overview]
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+# 25 Ranges library [[ranges]](./#ranges)
+
+## 25.8 Range generators [[coro.generator]](coro.generator#coroutine.generator.overview)
+
+### 25.8.1 Overview [coroutine.generator.overview]
+
+[1](#1)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L18041)
+
+Class template generator presents
+a view of the elements yielded by the evaluation of a coroutine[.](#1.sentence-1)
+
+[2](#2)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L18045)
+
+A generator generates a sequence of elements by
+repeatedly resuming the coroutine from which it was returned[.](#2.sentence-1)
+
+Elements of the sequence are produced by the coroutine
+each time a co_yield statement is evaluated[.](#2.sentence-2)
+
+When the co_yield statement is of the formco_yield elements_of(r),
+each element of the range r is successively produced as an element of the sequence[.](#2.sentence-3)
+
+[*Example [1](#example-1)*: generator<int> ints(int start = 0) {while (true)co_yield start++;}void f() {for (auto i : ints() | views::take(3)) cout << i << ' '; // prints 0 1 2} — *end example*]