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std::atomic_flag:: test

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std::atomic_flag
bool test ( std:: memory_order order =
std:: memory_order_seq_cst ) const volatile noexcept ;
(1) (since C++20)
bool test ( std:: memory_order order =
std:: memory_order_seq_cst ) const noexcept ;
(2) (since C++20)

Atomically reads the value of the * this and returns the value.

If order is one of std:: memory_order_release and std:: memory_order_acq_rel , the behavior is undefined.

Contents

Parameters

order - the memory synchronization ordering

Return value

The value atomically read.

Example

This section is incomplete
Reason: no example

See also

(C++20) (C++20)
atomically returns the value of the flag
(function)