[#BloombergLP-bdlc-FlatHashMap-operator_subs-03]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/FlatHashMap.adoc[FlatHashMap]::operator[]
:relfileprefix: ../../../
:mrdocs:

Return a modifiable reference to the mapped value for `key`.

== Synopses

Declared in `<bdlc_flathashmap.h>`

Return a modifiable reference to the mapped value for `key`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
VALUE&
xref:BloombergLP/bdlc/FlatHashMap/operator_subs-06.adoc[operator[]](xref:BloombergLP/bslmf/MovableRef.adoc[bslmf::MovableRef<KEY>] key);
----

[.small]#xref:BloombergLP/bdlc/FlatHashMap/operator_subs-06.adoc[_» more..._]#

Return a modifiable reference to the mapped value for `key`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
VALUE&
xref:BloombergLP/bdlc/FlatHashMap/operator_subs-05.adoc[operator[]](KEY const& key);
----

[.small]#xref:BloombergLP/bdlc/FlatHashMap/operator_subs-05.adoc[_» more..._]#

Return a modifiable reference to the mapped value for `key`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class LOOKUP_KEY>
VALUE&
xref:BloombergLP/bdlc/FlatHashMap/operator_subs-09.adoc[operator[]](LOOKUP_KEY&& key)
requires BloombergLP::bslmf::IsTransparentPredicate<HASH, LOOKUP_KEY>::value
         && BloombergLP::bslmf::IsTransparentPredicate<EQUAL,LOOKUP_KEY>::value;
----

[.small]#xref:BloombergLP/bdlc/FlatHashMap/operator_subs-09.adoc[_» more..._]#

== Return Value

modifiable reference to the mapped value for `key`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *key*
| key whose mapped value is accessed (may be moved from)
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#