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std::shared...hared_future(3)  C++ Standard Libary std::shared...hared_future(3)

NAME
     std::shared_future::shared_future - std::shared_future::shared_future

Synopsis
	shared_future() noexcept;			     (1) (since C++11)
	shared_future(	      const	   shared_future&	 other	      );
     (since C++11)
									       (un-
     til C++17)
	shared_future(	  const    shared_future&    other    ) 	     (2)
     (since C++17)
	noexcept;
	shared_future(	  std::future<T>&&    other   )   noexcept;	     (3)
     (since C++11)
	shared_future(	 shared_future&&   other   )	noexcept;	     (4)
     (since C++11)

	Constructs a new shared_future.

	1)  Default constructor. Constructs an empty shared future, that doesn't
     refer to a
	shared state, that is valid() == false.
	2) Constructs a shared future that refers to the same shared  state,  if
     any, as
	other.
	3,4)  Transfers  the shared state held by other to *this. After the con-
     struction,
	other.valid() == false, and this->valid()  returns  the  same  value  as
     other.valid()
	would have returned before the construction.

Parameters
	other - another future object to initialize with

http://cppreference.com 	   2024.06.10	   std::shared...hared_future(3)
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