std::mutex::mutex

constexpr mutex();	(1)	(since C++11)
mutex( const mutex& ) = delete;	(2)	(since C++11)

1) Constructs the mutex. The mutex is in unlocked state after the constructor completes.

2) Copy constructor is deleted.

Parameters

(none).

Exceptions

noexcept specification:

noexcept

Notes

Because the default constructor is constexpr, static mutexes are initialized as part of static non-local initialization, before any dynamic non-local initialization begins. This makes it safe to lock a mutex in a constructor of any static object.

Links:

http://en.cppreference.com/w/cpp/thread/mutex/mutex

doc_CPP

2016-10-11 10:05:07

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