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// Range v3 library
//
// Copyright Eric Niebler 2019
//
// Use, modification and distribution is subject to the
// Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// Project home: https://github.com/ericniebler/range-v3
//
///[comprehension_conversion]
// Use a range comprehension (views::for_each) to construct a custom range, and
// then convert it to a std::vector.
#include <iostream>
#include <vector>
#include <range/v3/range/conversion.hpp>
#include <range/v3/view/for_each.hpp>
#include <range/v3/view/iota.hpp>
#include <range/v3/view/repeat_n.hpp>
using std::cout;
int main()
{
using namespace ranges;
auto vi = views::for_each(views::ints(1, 6),
[](int i) { return yield_from(views::repeat_n(i, i)); }) |
to<std::vector>();
// prints: [1,2,2,3,3,3,4,4,4,4,5,5,5,5,5]
cout << views::all(vi) << '\n';
}
///[comprehension_conversion]
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