[#BloombergLP-bslfmt-FormatterSpecificationNumericValue_ArgVisitor-operator_call-08]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslfmt.adoc[bslfmt]::xref:BloombergLP/bslfmt/FormatterSpecificationNumericValue_ArgVisitor.adoc[FormatterSpecificationNumericValue&lowbar;ArgVisitor]::operator()
:relfileprefix: ../../../
:mrdocs:

Throw `format&lowbar;error` when visiting a non&hyphen;integral format argument&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;class t&lowbar;TYPE&gt;
void
operator()(t&lowbar;TYPE value) const
requires !bsl&colon;&colon;is&lowbar;integral&lt;t&lowbar;TYPE&gt;&colon;&colon;value;
----

== Description

This indicates visitation of a `bsl&colon;&colon;format` argument of non&hyphen;integral type, usually resulting from a user error such as calling `bsl&colon;&colon;format(&quot;&lcub;&colon;&lcub;&rcub;&rcub;&quot;, value, f)` where `f` has a floating point type&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *value*
| non&hyphen;integral argument that is not a valid nested value
|===


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