[#CDBWrapper-Exists]
= xref:CDBWrapper.adoc[CDBWrapper]::Exists
:relfileprefix: ../
:mrdocs:

Checks whether a value is stored under the given key.

== Synopsis

Declared in `<dbwrapper.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<typename K>
bool
Exists(K const& key) const;
----

== Return Value

True if the key exists in the database, false otherwise.

== Parameters

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


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