रेंजरों के पहले और बाद में C ++ कोड उदाहरण

 std::for_each( std::cbegin(v), std::cend(v), print_elem); // or for(auto const i : v) { print_elem(i); }; 

 rs::for_each( std::cbegin(v), std::cend(v), print_elem); // or rs::for_each(std::as_const(v), print_elem); 

 std::for_each( std::crbegin(v), std::crend(v), print_elem); 

 rs::for_each( std::crbegin(v), std::crend(v), print_elem); // or for (auto const i : v | rv::reverse) { print_elem(i); }; 

 std::for_each( std::crbegin(v), std::crend(v), [print_elem](auto const i) { if(i % 2 == 0) print_elem(i); }); 

 for (auto const i : v | rv::reverse | rv::filter(is_even)) { print_elem(i); }; 

 auto it = std::cbegin(v); std::advance(it, 2); auto ix = 0; while (it != std::cend(v) && ix++ < 3) { if (is_even(*it)) print_elem(*it); it++; } 

 for (auto const i : v | rv::drop(2) | rv::take(3) | rv::filter(is_even)) { print_elem(i); }; 

 for (int n = 101; n <= 200; ++n) { print_elem(n); } 

 for (auto n : rs::iota_view(101, 201)) { print_elem(n); } 

 for (int i = 101; i <= 200; ++i) { print_elem(to_roman(i)); } 

 for (auto n : rs::iota_view(101, 201) | rv::transform(to_roman)) { print_elem(n); } // or rs::for_each(rv::iota(101, 201), print_element, to_roman); 

 for (int n = 200, count=0; n >= 101 && count < 3; --n) { if (n % 7 == 0) { print_elem(to_roman(n)); count++; } } 

 for (auto n : rs::iota_view(101, 201) | rv::reverse | rv::filter([](auto v) { return v % 7 == 0; }) | rv::transform(to_roman) | rv::take(3)) { print_elem(n); } 

 std::vector<std::string> v; for (int n = 200, count = 0; n >= 101 && count < 3; --n) { if (n % 7 == 0) { v.push_back(to_roman(n)); count++; } } 

 auto v = rs::iota_view(101, 201) | rv::reverse | rv::filter([](auto v) {return v % 7 == 0; }) | rv::transform(to_roman) | rv::take(3) | rs::to_vector; 

 std::vector<int> v{ 21, 1, 3, 8, 13, 1, 5, 2 }; std::sort(std::begin(v), std::end(v)); v.erase( std::unique(std::begin(v), std::end(v)), std::end(v)); std::reverse(std::begin(v), std::end(v)); 

 std::vector<int> v{ 21, 1, 3, 8, 13, 1, 5, 2 }; v = std::move(v) | ra::sort | ra::unique | ra::reverse; 

 std::vector<int> v{ 21, 1, 3, 8, 13, 1, 5, 2 }; std::vector<int> v2 = v; std::sort(std::begin(v2), std::end(v2)); auto first = std::begin(v2); std::advance(first, 2); auto last = first; std::advance(last, std::size(v2) - 4); v2.erase(last, std::end(v2)); v2.erase(std::begin(v2), first); 

 std::vector<int> v{ 21, 1, 3, 8, 13, 1, 5, 2 }; auto v2 = v | rs::copy | ra::sort | ra::slice(2, rs::end - 2); 

 std::vector<std::string> words { "Lorem", " ", "ipsum", " ", "dolor", " ", "sit", " ", "amet"}; std::string text; for (auto const & word : words) text += word; 

 std::vector<std::string> words { "Lorem", " ", "ipsum", " ", "dolor", " ", "sit", " ", "amet"}; std::string text = words | rs::move | ra::join; 

 auto text = "Lorem ipsum dolor sit amet"; std::istringstream iss(text); std::vector<std::string> words( std::istream_iterator<std::string>{iss}, std::istream_iterator<std::string>()); auto count = words.size(); // or size_t count = 0; std::vector<std::string> words; std::string token; std::istringstream tokenStream(text); while (std::getline(tokenStream, token, ' ')) { ++count; } 

 auto text = "Lorem ipsum dolor sit amet"; auto count = rs::distance( rv::c_str(text) | rv::split(' '));