Hello I have problems with reading the time fraction at converting from string to ptime. Here is the regarding soruce code: |#include <iostream> #include <string> #include <boost/date_time.hpp> #include <boost/date_time/posix_time/posix_time.hpp> #include <boost/date_time/gregorian/gregorian.hpp> #include <boost/date_time/posix_time/conversion.hpp> int main( int, char * ) { using namespace std; using namespace boost; using namespace boost::posix_time; using namespace boost::local_time; using namespace boost::gregorian; time_facet* output_facet= new time_facet(); time_input_facet* input_facet= new time_input_facet(); stringstream sstream; sstream.imbue(locale(locale::classic(), output_facet)); sstream.imbue(locale(sstream.getloc() , input_facet)); string format("%d/%m/%Y %H:%M:%S.%f"); //example works fine without %f!!! output_facet->format( format.c_str() ); input_facet->format( format.c_str() < /span>); ptime dt= microsec_clock().local_time(); sstream.str(""); sstream<< dt; cout<< sstream.str() << end l; string time_string= sstream.str(); ptime tgtDt( boost::date_time::not_a_date_time); sstream.str( time_string.c_str() ); sstream>> tgtDt; cout<< tgtDt<< endl; }| The program runs fine without the %f inside the format string. But with %f tgtDt is "not-a-date-time". I use boost 1.44 and the doc says %f shold work, because every input incompatible format flag is marked bei "!" in the documentation. Any ideas how to get the frac part out of a string?