C++ named requirements: Lockable (since C++11)
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C++ named requirements 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
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Lockable
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The Lockable requirements extends the BasicLockable requirements to include attempted locking.
[edit] Requirements
For type L to be Lockable, it must meet the above condition as well as the following:
| Expression | Effects | Return value | 
|---|---|---|
| m.try_lock() | Attempts to acquire the lock for the current execution agent (thread, process, task) without blocking. If an exception is thrown, no lock is obtained. | true if the lock was acquired, false otherwise | 
[edit] Notes
The try_lock member functions obtains a non-shared lock on m on success.
[edit] Standard library
The following standard library types satisfy Lockable requirements:
(C++11)
(class) [edit]
(C++11)
by the same thread and implements locking with a timeout
(class) [edit]
(C++14)
(class) [edit]