Constructs a drop_view.

1) Default constructor. Value-initializes the underlying view base_ and initializes the count count_ to 0. After construction, base() returns a copy of V() and size() equals to the size of the underlying view.

2) Initializes the underlying view base_ with std::move(base) and the count count_ with count. After construction, base() returns a copy of base and size() returns ranges::size(base) - count if the size of base is not less than count, or 0 otherwise.

Parameters

Example

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

int main()
{
    constexpr std::array hi{'H', 'e', 'l', 'l', 'o', ',',
                            ' ', 'C', '+', '+', '2', '0'};
    
    std::ranges::for_each(hi, [](const char c){ std::cout << c; });
    std::cout << '\n';
    
    constexpr auto n = std::distance(hi.cbegin(), std::ranges::find(hi, 'C'));
    
    auto cxx = std::ranges::drop_view{hi, n};
    
    std::ranges::for_each(cxx, [](const char c){ std::cout << c; });
    std::cout << '\n';
}

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.