[#BloombergLP-balcl-OccurrenceInfo-2constructor-036]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balcl.adoc[balcl]::xref:BloombergLP/balcl/OccurrenceInfo.adoc[OccurrenceInfo]::OccurrenceInfo
:relfileprefix: ../../../
:mrdocs:

Construct an `OccurrenceInfo` of the specified occurrence `type`.

== Synopsis

Declared in `<balcl_occurrenceinfo.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
OccurrenceInfo(
    xref:BloombergLP/balcl/OccurrenceInfo/OccurrenceType-09.adoc[OccurrenceType] type,
    xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0);
----

== Description

Construct an `OccurrenceInfo` object that describes a command‐line option of the specified `type` and has no default value. Optionally specify a `basicAllocator` used to supply memory. If `basicAllocator` is 0, the currently installed default allocator is used.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *type*
| occurrence requirement for the described option
| *basicAllocator*
| memory allocator; null uses the default
|===


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