[#BloombergLP-bdlcc-Deque-tryPushFront-0ac]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlcc.adoc[bdlcc]::xref:BloombergLP/bdlcc/Deque.adoc[Deque]::tryPushFront
:relfileprefix: ../../../
:mrdocs:

If the container is not full (see {`High‐Water Mark` Feature}), append the specified move‐insertable `item` to the front of the container, otherwise leave the container unchanged. If the container is modified, `item` is left in a valid but unspecified state, otherwise `item` is unchanged. Return 0 if the container was updated and a non‐zero value otherwise.

== Synopsis

Declared in `<bdlcc_deque.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
tryPushFront(xref:BloombergLP/bslmf/MovableRef.adoc[bslmf::MovableRef<TYPE>] item);
----


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