| Defined in header <atomic> | ||
|---|---|---|
template< class T > void atomic_init( std::atomic<T>* obj, T desired ); | (since C++11) | |
template< class T > void atomic_init( volatile std::atomic<T>* obj, T desired ); | (since C++11) |
Initializes the default-constructed atomic object object with the value desired. The function is not atomic: concurrent access from another thread, even through an atomic operation, is a data race.
If obj was not default-constructed, the behavior is undefined.
If this function is called twice on the same obj, the behavior is undefined.
Parameters
| obj | - | pointer to an atomic object to initialize |
| desired | - | the value to initialize atomic object with |
Return value
(none).
Exceptions
noexcept specification: noexceptNotes
This function is provided for compatibility with C. If the compatibility is not required, std::atomic may be initialized through their non-default constructors.
Example
See also
| (C++11) | constant initialization of an atomic variable of static storage duration (function macro) |
| constructs an atomic object (public member function of std::atomic) | |
C documentation for atomic_init | |
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