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atomic_flag Structure

Describes an object that atomically sets and clears a bool flag. Operations on atomic flags are always lock-free.

struct atomic_flag;

Members

Public Methods

Name

Description

atomic_flag::clear Method

Sets the stored flag to false.

atomic_flag::test_and_set Method

Sets the stored flag to true and returns the initial flag value.

Remarks

atomic_flag objects can be passed to the non-member functions atomic_flag_clear, atomic_flag_clear_explicit, atomic_flag_test_and_set, and atomic_flag_test_and_set_explicit. They can be initialized by using the value ATOMIC_FLAG_INIT.

Requirements

Header: atomic

Namespace: std

See Also

Reference

<atomic>