[#BloombergLP-bslfmt-FormatterSpecificationNumericValue_ArgVisitor]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslfmt.adoc[bslfmt]::FormatterSpecificationNumericValue&lowbar;ArgVisitor
:relfileprefix: ../../
:mrdocs:

Visitor that extracts an integral nested format&hyphen;argument value&period;

== Synopsis

Declared in `&lt;bslfmt&lowbar;formatterspecificationnumericvalue&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class FormatterSpecificationNumericValue&lowbar;ArgVisitor;
----

== Description

Component&hyphen;private type to enable extraction of values held by format contexts during the postprocessing stage of determining the format specification (typically performed by the `FormatSpecificationParser`)&period; This type exists so that `FormatSpecificationParser` can update `FormatterSpecificationNumericValue` to the value contained by a Standard `basic&lowbar;format&lowbar;arg` using the Standard `visit&lowbar;format&lowbar;arg` function&period;

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslfmt/FormatterSpecificationNumericValue_ArgVisitor/2constructor.adoc[`FormatterSpecificationNumericValue&lowbar;ArgVisitor`]         [.small]#[constructor]#
| Create an instance of `FormatterSpecificationNumericValue&lowbar;ArgVisitor` that refers to the object to which the specified `valuePtr` points&period;
| xref:BloombergLP/bslfmt/FormatterSpecificationNumericValue_ArgVisitor/operator_call-0cb.adoc[`operator()`] 
| Function call operators
|===



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