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std::atomic_init

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Defined in header <atomic>
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template< class T >
void atomic_init( std::atomic<T>* obj, T desired );
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template< class T >
void atomic_init( volatile std::atomic<T>* obj, T desired );
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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.

Contents

Parameters

obj - pointer to an atomic object to initialize
desired - the value to initialize atomic object with

Return value

(none)

Exceptions

noexcept specification:  
noexcept
  

Notes

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

Template:cpp/atomic/dcl list ATOMIC VAR INITTemplate:cpp/atomic/atomic/dcl list constructor
C documentation for atomic_init