I got the following warning while compiling with (debian-testing) g++ 4.0.1-2 I couldn't see the problem in the code? /usr/local/include/boost-1_33/boost/date_time/time_duration.hpp: In function 'time_duration boost::date_time::parse_undelimited_time_duration(const std::string&) [with time_duration = boost::posix_time::time_duration]': /usr/local/include/boost-1_33/boost/date_time/time_duration.hpp:58: warning: control may reach end of non-void function 'static typename frac_sec_type::int_type boost::date_time::time_resolution_traits<frac_sec_type, res, resolution_adjust, frac_digits, v_type>::to_tick_count(v_type, v_type, v_type, typename frac_sec_type::int_type) [with frac_sec_type = boost::date_time::time_resolution_traits_adapted64_impl, boost::date_time::time_resolutions res = micro, typename frac_sec_type::int_type resolution_adjust = 1000000, short unsigned int frac_digits = 6u, v_type = int32_t]' being inlined Just a bit concerned, I don't like warnings :) Paul