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std::ranges::adjacent_view<V,N>:: adjacent_view

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C++
Ranges library
Range adaptors
std::ranges::adjacent_view
Member functions
adjacent_view::adjacent_view
(C++26)
Iterator
Member functions
Non-member functions
Sentinel
Member functions
Non-member functions
adjacent_view ( ) requires std:: default_initializable < V > = default ;
(1) (自 C++23 起)
constexpr explicit adjacent_view ( V base ) ;
(2) (自 C++23 起)

构造一个 adjacent_view 。

1) 默认构造函数。 值初始化 底层视图。
2) 使用 std :: move ( base ) 初始化底层视图 base_ 。

参数

base - 底层视图

示例

运行此代码 
#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); // 重载 (2)
    for (auto const& tuple : view)
        print(tuple);
}

输出： 

v: ABCDEF
ABCD
BCDE
CDEF