[#BloombergLP-bslstl-Function_InvokerUtilNullCheck-03-isNull]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/Function_InvokerUtilNullCheck-03.adoc[Function_InvokerUtilNullCheck]::isNull
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:mrdocs:

Return `false`.

== Synopsis

Declared in `<bslstl_function_invokerutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
bool
isNull(FUNC const& f);
----

== Return Value

`false`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *f*
| unused callable; this overload always returns `false`
|===


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