[#BloombergLP-balb-Choice4-2constructor-0d]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balb.adoc[balb]::xref:BloombergLP/balb/Choice4.adoc[Choice4]::Choice4
:relfileprefix: ../../../
:mrdocs:

Create an object of type `Choice4` having the default value. Use the optionally specified `basicAllocator` to supply memory. If `basicAllocator` is 0, the currently installed default allocator is used.

== Synopsis

Declared in `<balb_testmessages.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
Choice4(xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0);
----


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