std::atomic::exchange
From cppreference.com
(since C++11) | ||
T exchange( T desired, memory_order = std::memory_order_seq_cst );
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T exchange( T desired, memory_order = std::memory_order_seq_cst ) volatile;
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Atomically replaces the underlying value with desired
. The operation is read-modify-write operation. Memory is affected according to the value of memory_order
.
Contents |
[edit] Parameters
desired | - | value to assign |
memory_order | - | memory order constraints to enforce |
[edit] Return value
The value of the atomic variable before the call.
[edit] Exceptions
noexcept specification:
noexcept
[edit] See also
(C++11)(C++11)
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atomically replaces the value of the atomic object with non-atomic argument and returns the old value of the atomic (function template) |