[#bsl-allocator-080-reference]
= xref:bsl.adoc[bsl]::xref:bsl/allocator-080.adoc[allocator<pair<basic_string<char> const, Json>>]::reference
:relfileprefix: ../../
:mrdocs:

This `typedef` is an alias to a modifiable `value_type` reference.

== Synopsis

Declared in `<bslma_bslallocator.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
typedef xref:bsl/allocator-080/value_type.adoc[value_type]& reference;
----


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