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atomic_flag_clear, atomic_flag_clear_explicit

From cppreference.com
< c‎ | atomic
Defined in header <stdatomic.h>
void atomic_flag_clear( volatile atomic_flag* obj );
(1) (since C11)
void atomic_flag_clear_explicit( volatile atomic_flag* obj, memory_order order );
(2) (since C11)

Atomically changes the state of a atomic_flag pointed to by obj to clear (false). The first version orders memory accesses according to memory_order_seq_cst, the second version orders memory accesses according to order.

[edit] Parameters

obj - pointer to the atomic flag object to modify
order - the memory synchronization ordering for this operation: all values are permitted

[edit] Return value

(none)

[edit] See also

sets an atomic_flag to true and returns the old value
(function) [edit]
C++ documentation for atomic_flag_clear, atomic_flag_clear_explicit