[#BloombergLP-bdlar-ChoiceConstRef]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlar.adoc[bdlar]::ChoiceConstRef
:relfileprefix: ../../
:mrdocs:

== Synopsis

Declared in `<bdlar_choiceref.h>`

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

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdlar/ChoiceConstRef/2constructor-07.adoc[`ChoiceConstRef`]         [.small]#[constructor]#
| Constructors
| xref:BloombergLP/bdlar/ChoiceConstRef/accessSelection.adoc[`accessSelection`] 
| Invoke the specified `accessor` on the (non‐modifiable) selection, supplying `accessor` with the corresponding selection information structure. The supplied `accessor` must be a callable type that can be called as if it had the following signature: ` template <class t_INFO> int accessor(const SELECTION& refOrValue, const t_INFO& info); ` Return the value returned from the invocation of `accessor`. The behavior is undefined unless `selectionId() != ‐1`.
| xref:BloombergLP/bdlar/ChoiceConstRef/hasSelection-0e.adoc[`hasSelection`] 
| `hasSelection` overloads
| xref:BloombergLP/bdlar/ChoiceConstRef/objectAddress.adoc[`objectAddress`] 
| Return a pointer to the wrapped array.
| xref:BloombergLP/bdlar/ChoiceConstRef/selectionId.adoc[`selectionId`] 
| Return the id of the current selection if the selection is defined, and ‐1 otherwise.
| xref:BloombergLP/bdlar/ChoiceConstRef/vtable.adoc[`vtable`] 
| Return a pointer to the vtable.
| xref:BloombergLP/bdlar/ChoiceConstRef/xsdName.adoc[`xsdName`] 
| Return the `bdlat_TypeName::xsdName` value for the underlying object.
|===


== Non-Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdlar/bdlat_TypeName_xsdName-0e9.adoc[`bdlat_TypeName_xsdName`]
| Return the XSD name for the specified `ref` using the specified `format`.
| xref:BloombergLP/bdlar/bdlat_choiceAccessSelection-0308.adoc[`bdlat_choiceAccessSelection`]
| Invoke the specified `accessor` on the current selection of the specified `ref`. Return the value from the invocation of `accessor`.
| xref:BloombergLP/bdlar/bdlat_choiceHasSelection-01.adoc[`bdlat_choiceHasSelection`]
| Return `true` if the specified `ref` has the selection identified by the specified `selectionId`, and `false` otherwise.
| xref:BloombergLP/bdlar/bdlat_choiceHasSelection-0d.adoc[`bdlat_choiceHasSelection`]
| Return `true` if the specified `ref` has the selection identified by the specified `selectionName` of the specified `selectionNameLength`, and `false` otherwise.
| xref:BloombergLP/bdlar/bdlat_choiceSelectionId-0eb.adoc[`bdlat_choiceSelectionId`]
| Return the id of the current selection if the selection is defined, and ‐1 otherwise.
|===


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