[#absl-linked_hash_map-operator_subs-09]
= xref:absl.adoc[absl]::xref:absl/linked_hash_map.adoc[linked_hash_map]::operator[]
:relfileprefix: ../../
:mrdocs:

Returns a reference to the value mapped to the given key, inserting a default‐constructed value if the key is not present.

== Synopsis

Declared in `<absl/container/linked_hash_map.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class K = xref:absl/linked_hash_map/key_type.adoc[key_type]>
xref:absl/linked_hash_map/mapped_type.adoc[mapped_type]&
operator[](xref:absl/linked_hash_map.adoc[key_arg<K>] const& key);
----

== Return Value

A reference to the mapped value.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *key*
| The key to look up.
|===


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