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

Probe an unopened database for a key prefix. Return true if a database at path exists and contains at least 1 entry beginning with prefix; missing or empty databases return false, and database errors throw dbwrapper_error.

== Synopsis

Declared in `<dbwrapper.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
bool
HasKeyStartingWith(
    xref:fs/path.adoc[fs::path] const& path,
    uint8_t prefix);
----

== Return Value

True if an entry beginning with prefix exists, false otherwise.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *path*
| Filesystem path of the database to probe.
| *prefix*
| The single‐byte key prefix to search for.
|===


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