std::unique_lock<Mutex>::swap

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std::unique_lock

Member functions
unique_lock::unique_lock
unique_lock::~unique_lock
unique_lock::operator=
Locking
unique_lock::lock
unique_lock::try_lock
unique_lock::try_lock_for
unique_lock::try_lock_until
unique_lock::unlock
Modifiers
unique_lock::swap
unique_lock::release
Observers
unique_lock::mutex
unique_lock::owns_lock
unique_lock::operator bool
Non-member functions
swap(std::unique_lock)

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

Exchanges the internal states of the lock objects.

[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"; return0;}