[#bsl-unordered_map-02b-const_reference]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_map-02b.adoc[unordered_map]::const_reference
:relfileprefix: ../../
:mrdocs:

This `typedef` is an alias to `const value_type&`.

== Synopsis

Declared in `<bslstl_unorderedmap.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
typedef xref:bsl/unordered_map-02b/value_type.adoc[value_type] const& const_reference;
----


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