[#BloombergLP-bsls-AtomicBool]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bsls.adoc[bsls]::AtomicBool
:relfileprefix: ../../
:mrdocs:

Atomic boolean providing sequentially consistent operations by default.

== Synopsis

Declared in `<bsls_atomic.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class AtomicBool;
----

== Description

This class implements an atomic boolean, which supports common boolean operations in a way that is guaranteed to be atomic. Operations on objects of this class provide the sequential consistency memory ordering guarantee unless explicitly qualified with a less strict consistency guarantee suffix (i.e., Acquire, Release, AcqRel or Relaxed).

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bsls/AtomicBool/2constructor-08.adoc[`AtomicBool`]         [.small]#[constructor]#
| Constructors
| xref:BloombergLP/bsls/AtomicBool/operator_assign.adoc[`operator=`] 
| Atomically assign the specified `value` to this object, and return a reference offering modifiable access to `this` object.
| xref:BloombergLP/bsls/AtomicBool/load.adoc[`load`] 
| Return the current value of this object.
| xref:BloombergLP/bsls/AtomicBool/loadAcquire.adoc[`loadAcquire`] 
| Return the current value of this object, providing the acquire memory ordering guarantee.
| xref:BloombergLP/bsls/AtomicBool/loadRelaxed.adoc[`loadRelaxed`] 
| Return the current value of this object, providing the relaxed memory ordering guarantee.
| xref:BloombergLP/bsls/AtomicBool/store.adoc[`store`] 
| Atomically assign the specified `value` to this object, providing the sequential consistency memory ordering guarantee.
| xref:BloombergLP/bsls/AtomicBool/storeRelaxed.adoc[`storeRelaxed`] 
| Atomically assign the specified `value` to this object, providing the relaxed memory ordering guarantee.
| xref:BloombergLP/bsls/AtomicBool/storeRelease.adoc[`storeRelease`] 
| Atomically assign the specified `value` to this object, providing the release memory ordering guarantee.
| xref:BloombergLP/bsls/AtomicBool/swap.adoc[`swap`] 
| Atomically set the value of this object to the specified `swapValue` and return its previous value.
| xref:BloombergLP/bsls/AtomicBool/swapAcqRel.adoc[`swapAcqRel`] 
| Atomically set the value of this object to the specified `swapValue` and return its previous value, providing the acquire/release memory ordering guarantee.
| xref:BloombergLP/bsls/AtomicBool/testAndSwap.adoc[`testAndSwap`] 
| Conditionally swap this value if it equals `compareValue`.
| xref:BloombergLP/bsls/AtomicBool/testAndSwapAcqRel.adoc[`testAndSwapAcqRel`] 
| Conditionally swap this value with acquire/release ordering.
| xref:BloombergLP/bsls/AtomicBool/2conversion.adoc[`operator bool`] 
| Return the current value of this object.
|===



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