MySQL 5.6 Release Notes
unsigned long mysql_get_client_version(void)
Returns an integer that represents the MySQL client library
version. The value has the format XYYZZ
where X is the major version,
YY is the release level (or minor version),
and ZZ is the sub-version within the
release level:
major_version*10000 + release_level*100 + sub_version
For example, "5.6.42" is
returned as 50642.
The function value is the MySQL version. For Connector/C, this is the MySQL version on which the Connector/C distribution is based. For more information, see Section 23.8.4.4, “C API Server and Client Library Versions”.