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std::ranges::adjacent_transform_view<V,F,N>::adjacent_transform_view

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Ranges library
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(C++23)
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adjacent_transform_view() = default;
(1) (since C++23)
constexpr explicit adjacent_transform_view( V base, F fun );
(2) (since C++23)

Constructs an adjacent_transform_view.

1) Default constructor. Default-initializes the underlying data members fun_ and inner_.
2) Move constructs the underlying data members: fun_ with std::move(fun) and inner_ with std::move(base).

[edit] Parameters

base - the underlying view
fun - the N-ary transformation function

[edit] Example

A link to test: Compiler Explorer/g++-13

#include <algorithm>
#include <iostream>
#include <iterator>
#include <ranges>
 
int main()
{
    constexpr static auto v = {1, 2, 3, 4, 5};
    constexpr auto mul = [](auto... x) { return (... * x); };
    constexpr auto view = std::views::adjacent_transform<3>(v, mul);
    std::ranges::copy(view, std::ostream_iterator<int>(std::cout, " "));
    std::cout << '\n';
}

Output:

6 24 60