Also, when used : --- BOOST_AUTO(rs, a.test("SELECT 1", "123")); --- (without default argument) everything compile fine. But without default argument (as mentioned in last post) there is fatal error: --- BOOST_AUTO(rs, a.test("SELECT 1")); // fatal error --- Thanks Trigve ____________________________________________________________________________________Be a better Globetrotter. Get better travel answers from someone who knows. Yahoo! Answers - Check it out. http://answers.yahoo.com/dir/?link=list&sid=396545469