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Showing content from https://en.cppreference.com/w/cpp/algorithm/../ranges/../atomic/atomic_signal_fence.html below:

std::atomic_signal_fence - cppreference.com

(since C++11)

Establishes memory synchronization ordering of non-atomic and relaxed atomic accesses, as instructed by order, between a thread and a signal handler executed on the same thread. This is equivalent to std::atomic_thread_fence, except no CPU instructions for memory ordering are issued. Only reordering of the instructions by the compiler is suppressed as order instructs. For example, a fence with release semantics prevents reads or writes from being moved past subsequent writes and a fence with acquire semantics prevents reads or writes from being moved ahead of preceding reads.

[edit] Parameters order - the memory ordering executed by this fence [edit] Return value

(none)

[edit] Example [edit] See also

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