[#bsl-Deque_Base-size]
= xref:bsl.adoc[bsl]::xref:bsl/Deque_Base.adoc[Deque_Base]::size
:relfileprefix: ../../
:mrdocs:

Return the number of elements contained by this deque.

== Synopsis

Declared in `<bslstl_deque.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/Deque_Base/size_type.adoc[Deque_Base<VALUE_TYPE>::size_type]
size() const noexcept;
----


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