C++ 概念: Lockable

来自cppreference.com
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Lockable的概念延伸BasicLockable的概念,包括试图锁定.
原文:
The Lockable concept extends the BasicLockable concept to include attempted locking.
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[编辑] 要求

类型LLockable,它必须满足上述条件,以及以下
原文:
For type L to be Lockable, it must meet the above condition as well as the following:
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Expression Effects Return value
m.try_lock() Attempts to acquire the lock for the current execution agent without blocking. If an exception is thrown, no lock is obtained. true if the lock was acquired, false otherwise

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