[#BloombergLP-bdlc-HashTableDefaultTraits-isNull-0e]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/HashTableDefaultTraits.adoc[HashTableDefaultTraits]::isNull
:relfileprefix: ../../../
:mrdocs:

Same as the preceding overload for key&sol;value pair buckets&period;

== Synopsis

Declared in `&lt;bdlc&lowbar;hashtable&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;
    class KEY,
    class VALUE&gt;
static
bool
isNull(xref:bsl/pair-0b.adoc[bsl::pair&lt;KEY, VALUE&gt;] const& bucket);
----

== Return Value

`true` if `bucket` is null, and `false` otherwise

== Parameters

[cols="1,4"]
|===
| Name| Description
| *bucket*
| bucket to test for a null value
|===


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