std::ranges::drop_view<V>::base
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constexpr V base() const& requires std::copy_constructible <V>;
(1)
(since C++20)
constexpr V base() &&;
(2)
(since C++20)
Returns a copy of the underlying view.
1) Copy constructs the result from the underlying view
base_ .2) Move constructs the result from the underlying view
base_ .[edit] Return value
A copy of the underlying (adapted) view base_ .
[edit] Example
Run this code
#include <iostream> #include <ranges> namespace stq { void println(auto, const auto& v) { for (const auto& e : v) std::cout << e << ' '; std::cout << '\n'; } } int main() { static constexpr int a[]{1, 2, 3, 4, 5}; constexpr auto view = a | std::views::drop (2); stq::println("{}", view); const auto base = view.base(); stq::println("{}", base); }
Output:
3 4 5 1 2 3 4 5