# std::ranges::drop_while_view<V,Pred>::base

From cppreference.com
< cpp‎ | ranges‎ | drop while view

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.
2) Move constructs the result from the underlying view.

### Parameters

(none)

### Return value

A copy of the underlying view.

### Example

Run this code

    #include <array>
    #include <ranges>
    #include <iostream>
    #include <algorithm>

    void print(auto first, auto last) {
        for (; first != last; ++first)
            std::cout << *first << ' ';
        std::cout << '\n';
    }

    int main()
    {
        std::array data{ 1, 2, 3, 4, 5 };
        print(data.cbegin(), data.cend());

        auto func = [](int x) { return x < 3; };
        auto view = std::ranges::drop_while_view{ data, func };
        print(view.begin(), view.end());

        auto base = view.base(); // `base` refers to the `data`
        std::ranges::reverse(base); //< changes `data` indirectly
        print(data.cbegin(), data.cend());
    }

Output:

    1 2 3 4 5
    3 4 5
    5 4 3 2 1

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