[#DataStream-operator_subs-0b]
= xref:DataStream.adoc[DataStream]::operator[]
:relfileprefix: ../
:mrdocs:

Return a const reference to the unread element at `pos`.

== Synopsis

Declared in `<streams.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:DataStream/const_reference.adoc[const_reference]
operator[](xref:DataStream/size_type.adoc[size_type] pos) const;
----

== Return Value

A const reference to the unread element at `pos`.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *pos*
| Index of the unread element, relative to the read position.
|===


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