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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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