[#BloombergLP-bdlcc-StripedUnorderedContainerImpl-insertUnique-07]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlcc.adoc[bdlcc]::xref:BloombergLP/bdlcc/StripedUnorderedContainerImpl.adoc[StripedUnorderedContainerImpl]::insertUnique
:relfileprefix: ../../../
:mrdocs:

Insert or update the element having the specified `key` and `value`.

== Synopsis

Declared in `<bdlcc_stripedunorderedcontainerimpl.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::size_t
insertUnique(
    KEY const& key,
    VALUE const& value);
----

== Description

If `key` already exists in this hash map, the value attribute of that element is set to `value`. Return 1 if an element is inserted, and 0 if an existing element is updated. Note that the return value equals the number of elements inserted.

== Return Value

1 if an element is inserted, and 0 if an existing element is updated

== Parameters

[cols="1,4"]
|===
| Name| Description
| *key*
| key of the element to insert or update
| *value*
| value to assign or insert
|===


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