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std::unique_lock::swap(3)     C++ Standard Libary    std::unique_lock::swap(3)

NAME
       std::unique_lock::swap -	std::unique_lock::swap

Synopsis
	  void swap( unique_lock& other	) noexcept;  (since C++11)

	  Exchanges the	internal states	of the lock objects.

Parameters
	  other	- the lock to swap the state with

Return value
	  (none)

Example
       // Run this code

	#include <iostream>
	#include <mutex>

	int main()
	{
	    std::mutex mtx1;
	    std::unique_lock<std::mutex> guard1(mtx1);
	    std::unique_lock<std::mutex> guard2;
	    guard2.swap(guard1);

	    if (!guard1	&& guard2)
		std::cout << "swapped success\n";

	    return 0;
	}

Output:
	swapped	success

See also
	  std::swap(std::unique_lock)	 specialization	  of   std::swap   for
       unique_lock
	  (C++11)		      (function	template)

http://cppreference.com		  2024.06.10	     std::unique_lock::swap(3)

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