[#BloombergLP-bdlcc-StripedUnorderedContainerImpl-setValueFirst-0e]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlcc.adoc[bdlcc]::xref:BloombergLP/bdlcc/StripedUnorderedContainerImpl.adoc[StripedUnorderedContainerImpl]::setValueFirst
:relfileprefix: ../../../
:mrdocs:

`setValueFirst` overloads

== Synopses

Declared in `&lt;bdlcc&lowbar;stripedunorderedcontainerimpl&period;h&gt;`

Set the value attribute of the element in this hash map having the specified `key` to the specified `value`&period; If no such element exists, insert `(key, value)`&period; If there are multiple elements in this hash map having `key` then set the value of the first such element found&period; Return the number of elements found having `key`&period; Note that if no elements were found, and a new value was inserted, `0` is returned&period; Also note that, when there are multiple elements having `key`, the selection of &quot;first&quot; is unspecified and subject to change&period;


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::size&lowbar;t
xref:BloombergLP/bdlcc/StripedUnorderedContainerImpl/setValueFirst-0c.adoc[setValueFirst](
    KEY const& key,
    xref:BloombergLP/bslmf/MovableRef.adoc[bslmf::MovableRef&lt;VALUE&gt;] value);
----

[.small]#xref:BloombergLP/bdlcc/StripedUnorderedContainerImpl/setValueFirst-0c.adoc[_» more&period;&period;&period;_]#

Set the value attribute of the _first_ element in this hash map (of possibly many) found to have the specified `key` to the specified `value`&period; If no such such element exists, insert `(key, value)`&period; Return the number of elements found with `key`&period; Note that if no elements were found, and a new value was inserted, `0` is returned&period; Also note that this method is more performant than `setValueAll` when there is one element having `key` in the hash map&period;


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::size&lowbar;t
xref:BloombergLP/bdlcc/StripedUnorderedContainerImpl/setValueFirst-03.adoc[setValueFirst](
    KEY const& key,
    VALUE const& value);
----

[.small]#xref:BloombergLP/bdlcc/StripedUnorderedContainerImpl/setValueFirst-03.adoc[_» more&period;&period;&period;_]#


[.small]#Created with https://www.mrdocs.com[MrDocs]#
