std::unique_lock<Mutex>::swap
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std::unique_lock
Member functions
Locking
Modifiers
unique_lock::swap
Observers
Non-member functions
void swap( unique_lock& other ) noexcept;
(since C++11)
Exchanges the internal states of the lock objects.
Contents
[edit] Parameters
other
-
the lock to swap the state with
[edit] Return value
(none)
[edit] 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