atomic_store, atomic_store_explicit
From cppreference.com
| Defined in header
<stdatomic.h>
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| void atomic_store( volatile A* obj , C desired);
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(1) | (since C11) |
| void atomic_store_explicit( volatile A* obj, C desired, memory_order order );
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(2) | (since C11) |
Atomically replaces the value of the atomic variable pointed to by obj with desired. The operation is atomic write operation.
The first version orders memory accesses according to memory_order_seq_cst, the second version orders memory accesses according to order. order must be one of memory_order_relaxed, memory_order_release or memory_order_seq_cst. Otherwise the behavior is undefined.
This is a generic function defined for all atomic object types A. The argument is pointer to a volatile atomic type to accept addresses of both non-volatile and volatile (e.g. memory-mapped I/O) atomic variables.C is the non-atomic type corresponding to A.
Contents |
[edit] Parameters
| obj | - | pointer to the atomic object to modify |
| order | - | the memory synchronization ordering for this operation |
[edit] Return value
(none)
[edit] References
- C11 standard (ISO/IEC 9899:2011):
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- 7.17.7.1 The atomic_store generic functions (p: 282)
[edit] See also
| reads a value from an atomic object (function) |
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C++ documentation for atomic_store, atomic_store_explicit
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