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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
//
///[accumulate_ints]
// Sums the first ten squares and prints them, using views::ints to generate
// and infinite range of integers, views::transform to square them, views::take
// to drop all but the first 10, and accumulate to sum them.
#include <iostream>
#include <vector>
#include <range/v3/numeric/accumulate.hpp>
#include <range/v3/view/iota.hpp>
#include <range/v3/view/take.hpp>
#include <range/v3/view/transform.hpp>
using std::cout;
int main()
{
using namespace ranges;
int sum = accumulate(views::ints(1, unreachable) | views::transform([](int i) {
return i * i;
}) | views::take(10),
0);
// prints: 385
cout << sum << '\n';
}
///[accumulate_ints]
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