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std::ranges::join_view<V>::join_view

join_view() requires std::default_initializable<V> = default;
 (1) (since C++20) 
constexpr explicit join_view( V base );
 (2) (since C++20)

Constructs a join_view.

1) Default constructor. Value-initializes the underlying view. After construction, base() returns a copy of V().
2) Initializes the underlying view with std::move(base).

Parameters

base - a view of ranges to be flattened

Example

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