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std::ranges...lements_view(3) C++ Standard Libarystd::ranges...lements_view(3) NAME std::ranges::elements_view::elements_view - std::ranges::ele- ments_view::elements_view Synopsis elements_view() requires std::default_initializable<V> = default; (1) (since C++20) constexpr explicit elements_view( V base ); (2) (since C++20) Constructs an elements_view. 1) Default constructor. Value-initializes the underlying view. After construction, base() returns a copy of V(). 2) Initializes the underlying view with std::move(base). Parameters base - the underlying view Example // Run this code #include <array> #include <iostream> #include <ranges> #include <tuple> void println(auto const& v) { for (auto const& e : v) std::cout << e << ' '; std::cout << '\n'; } int main() { using namespace std::literals; const std::array<std::tuple<int, char, std::string>, 2> vt { std::tuple{1, 'A', ""s}, std::tuple{2, 'B', ""s}, }; [[maybe_unused]] auto empty = std::views::elements<0>; println(std::views::elements<0>(vt)); println(std::views::elements<1>(vt)); println(std::views::elements<2>(vt)); } Output: 1 2 A B http://cppreference.com 2024.06.10 std::ranges...lements_view(3)
NAME | Synopsis | Parameters | Example | Output:
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