| 7 | **/ |
| 8 | |
| 9 | int main() |
| 10 | { |
| 11 | //! [scan] |
| 12 | rpp::source::just(1, 2, 3) |
| 13 | | rpp::operators::scan(10, std::plus<int>{}) |
| 14 | | rpp::operators::subscribe([](int v) { std::cout << v << std::endl; }); |
| 15 | // Output: 10 11 13 16 |
| 16 | //! [scan] |
| 17 | |
| 18 | //! [scan_vector] |
| 19 | rpp::source::just(1, 2, 3) |
| 20 | | rpp::operators::scan(std::vector<int>{}, [](std::vector<int>&& seed, int new_value) { |
| 21 | seed.push_back(new_value); |
| 22 | return std::move(seed); |
| 23 | }) |
| 24 | | rpp::operators::subscribe([](const std::vector<int>& v) { |
| 25 | std::cout << "vector: "; |
| 26 | for (int val : v) |
| 27 | std::cout << val << " "; |
| 28 | std::cout << std::endl; |
| 29 | }); |
| 30 | // Output: vector: |
| 31 | // vector: 1 |
| 32 | // vector: 1 2 |
| 33 | // vector: 1 2 3 |
| 34 | //! [scan_vector] |
| 35 | |
| 36 | //! [scan_no_seed] |
| 37 | rpp::source::just(1, 2, 3) |
| 38 | | rpp::operators::scan(std::plus<int>{}) |
| 39 | | rpp::operators::subscribe([](int v) { std::cout << v << std::endl; }); |
| 40 | // Output: 1 3 6 |
| 41 | //! [scan_no_seed] |
| 42 | return 0; |
| 43 | } |