private static int doDupCompare(
IntPtr dbp, IntPtr dbt1p, IntPtr dbt2p)
{
DB db = new DB(dbp, false);
DBT dbt1 = new DBT(dbt1p, false);
DBT dbt2 = new DBT(dbt2p, false);
return ((SecondaryBTreeDatabase)(db.api_internal)).DupCompare(
DatabaseEntry.fromDBT(dbt1), DatabaseEntry.fromDBT(dbt2));
}