Hi, I cannot get this short program to compile with GCC 4.3.2: #include <iostream> #include <boost/date_time/gregorian/gregorian.hpp> #include <boost/date_time/gregorian/formatters.hpp> int main(int argc, char** argv){ boost::gregorian::date date = boost::gregorian::day_clock::local_day(); std::cout << boost::gregorian::to_sql_string_type(date) << std::endl; return 0; } The error is: g++ -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"Main.d" -MT"Main.d" -o"Main.o" "../Main.cpp" ../Main.cpp: In function ‘int main(int, char**)’: ../Main.cpp:18: error: no matching function for call to ‘to_sql_string_type(boost::gregorian::date&)’ I cannot find any solution anywhere hence my question: what am I doing wrong, and more important, how can I get it working? -- Groeten, Joost Kraaijeveld Askesis B.V. Molukkenstraat 14 6524NB Nijmegen tel: 024-3888063 / 06-51855277 fax: 024-3608416 web: www.askesis.nl