std::experimental::atomic_weak_ptr<T>::exchange
From cppreference.com
< cpp | experimental | atomic weak ptr
|
weak_ptr<T> exchange( weak_ptr<T> desired, std::memory_order order =
std::memory_order_seq_cst
)
noexcept
;
|
||
Atomically replaces the underlying weak_ptr with desired. The operation is a read-modify-write operation. Memory is affected according to the value of order.
Parameters
| desired | - | value to assign |
| order | - | memory order constraints to enforce |
Return value
The value of the atomic variable before the call.
Remarks
All changes to the atomic_weak_ptr object itself, and all associated use_count increments, are guaranteed to be performed atomically. Associated use_count
See also
specializes atomic operations for std::shared_ptr (function template) |