33 Thread support library [thread]

33.2 Requirements [thread.req]

33.2.5 Requirements for Lockable types [thread.req.lockable]

33.2.5.3 Lockable requirements [thread.req.lockable.req]

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A type L meets the Lockable requirements if it meets the BasicLockable requirements and the following expressions are well-formed and have the specified semantics (m denotes a value of type L).

m.try_lock()

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Effects: Attempts to acquire a lock for the current execution agent without blocking. If an exception is thrown then a lock shall not have been acquired for the current execution agent.

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Return type: bool.

4
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Returns: true if the lock was acquired, false otherwise.