Where is this C++ API mentioned in Drill docs

[Devender Yadav]

Hi All,

As per Drill Docs [
http://drill.apache.org/docs/architecture-introduction/#drill-clients], You
can access Drill through the following interfaces:

   - Drill shell <http://drill.apache.org/docs/configuring-the-drill-shell/>
   - Drill Web Console
   
<http://drill.apache.org/docs/monitoring-and-canceling-queries-in-the-drill-web-console>
   - ODBC/JDBC
   
<http://drill.apache.org/docs/interfaces-introduction/#using-odbc-to-access-apache-drill-from-bi-tools>
   - C++ API

Where is this C++ API?

Regards,
Devender