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# atomic_signal_fence

From cppreference.com
< c‎ | atomic

Defined in header `<stdatomic.h>` |  |
void atomic_signal_fence( memory_order order ); |  | (since C11)

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, writes cannot be moved past a fence with release semantics and reads cannot be moved ahead of a fence with acquire semantics.

### [edit] Parameters

order | - | the memory ordering executed by this fence

### [edit] Return value

(none)

### [edit] See also

atomic_thread_fence (C11) | generic memory order-dependent fence synchronization primitive (function) [edit]
C++ documentation for atomic_signal_fence

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