[#BloombergLP-bdlcc-Deque-tryPushFront-026] = 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 `item` to the front of the container, otherwise leave the container 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(TYPE const& item); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#