std::atomic_store, std::atomic_store_explicit
Defined in header <atomic> | ||
|---|---|---|
| (1) | (since C++11) | |
template< class T >
void atomic_store( std::atomic<T>* obj,
typename std::atomic<T>::value_type desr ) noexcept;
| ||
template< class T >
void atomic_store( volatile std::atomic<T>* obj,
typename std::atomic<T>::value_type desr ) noexcept;
| ||
| (2) | (since C++11) | |
template< class T >
void atomic_store_explicit( std::atomic<T>* obj,
typename std::atomic<T>::value_type desr,
std::memory_order order) noexcept;
| ||
template< class T >
void atomic_store_explicit( volatile std::atomic<T>* obj,
typename std::atomic<T>::value_type desr,
std::memory_order order) noexcept;
|
1) Atomically replaces the value pointed to by
obj with the value of desr as if by obj->store(desr)
2) Atomically replaces the value pointed to by
obj with the value of desr as if by obj->store(desr, order)
Parameters
| obj | - | pointer to the atomic object to modify |
| desr | - | the value to store in the atomic object |
| order | - | the memory synchronization ordering for this operation: only std::memory_order_relaxed, std::memory_order_release and std::memory_order_seq_cst are permitted. |
Return value
none.
Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|---|---|---|
| P0558R1 | C++11 | exact type match required because T is deduced from multiple arguments | T is deduced from the atomic argument only |
See also
| atomically replaces the value of the atomic object with a non-atomic argument (public member function of std::atomic<T>) |
|
|
(C++11)(C++11) | atomically obtains the value stored in an atomic object (function template) |
|
(C++11) | defines memory ordering constraints for the given atomic operation (enum) |
specializes atomic operations for std::shared_ptr (function template) |
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