std::ranges::drop_view<V>::base
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_.Return value
A copy of the underlying (adapted) view base_.
Example
#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
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https://en.cppreference.com/cpp/ranges/drop_view/base