std::unique_lock
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| Locking |
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void swap( unique_lock& other ) noexcept;
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(since C++11) |
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Exchanges the internal states of the lock objects.
Parameters
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-
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the lock to swap the state with
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Return value
(none)
Example
#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:
See also
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specializes the std::swap algorithm
(function template) [edit]
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