ATOMIC_VAR_INIT
From cppreference.com
Defined in header
<atomic>
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#define ATOMIC_VAR_INIT(value) /* implementation-defined */
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Expands the an expression which can be used to initialize an std::atomic object that can be initialized from value
. If the atomic object has static storage duration, this initialization is constant initialization.
[edit] Notes
Accessing the variable during initialization from another thread, even through an atomic operation, is a data race (it may happen if the address is immediately passed to another thread with a std::memory_order_relaxed operation)
This macro is primarily provided for compatibility with C; it behaves the same as the constructor of std::atomic.
[edit] Example
This section is incomplete Reason: no example |
[edit] See also
(C++11)
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non-atomic initialization of a default-constructed atomic object (function template) |
constructs an atomic object (public member function of std::atomic )
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