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std::packaged_task::valid(3)   C++ Standard Libary  std::packaged_task::valid(3)

NAME
     std::packaged_task::valid - std::packaged_task::valid

Synopsis
	bool valid() const noexcept;  (since C++11)

	Checks whether *this has a shared state.

Parameters
	(none)

Return value
	true if *this has a shared state, false otherwise.

http://cppreference.com 	   2024.06.10	    std::packaged_task::valid(3)

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