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std::ranges::adjacent_view::adjacent_view(3) C++ Standard Libary std::ranges::adjacent_view::adjacent_view(3)

NAME

std::ranges::adjacent_view::adjacent_view - std::ranges::adjacent_view::adjacent_view

Synopsis


adjacent_view() requires std::default_initializable<V> = default; (1) (since C++23)
constexpr explicit adjacent_view( V base ); (2) (since C++23)


Constructs an adjacent_view.


1) Default constructor. Value-initializes the underlying view.
2) Initializes the underlying view base_ with std::move(base).

Parameters


base - the underlying view

Example

// Run this code


#include <iostream>
#include <ranges>
#include <string>
#include <tuple>


template<class... Ts>
void print(std::tuple<Ts...> const& tuple)
{
std::apply([&](auto&& arg, auto&&... args)
{
std::cout << arg;
((std::cout << args), ...);
}, tuple);
std::cout << '\n';
}


int main()
{
const std::string v{"ABCDEF"};
constexpr int window_size{4};


std::cout << "v: " << v << '\n';


auto view = std::views::adjacent<window_size>(v); // overload (2)


for (auto const& tuple : view)
print(tuple);
}

Output:


v: ABCDEF
ABCD
BCDE
CDEF

2024.06.10 http://cppreference.com