Christopher Lux wrote: Sorry for the slow response...
Hi, i am trying to use date_time with nanosec resolution for the fractional seconds part. So i define BOOST_DATE_TIME_POSIX_TIME_STD_CONFIG in my projects using date_time. Now i get the compiler warning below. I found out that the problem in the said function is that in boost/date_time/date_duration.hpp the struct duration_traits_adapted defines the int_type as long and not as int_64t.
Right, it doesn't need to be 64 bits and you really shouldn't pay for that.
The warning is generated in the add_time_duration() funtion of the split_timedate_system class. So i imagine that this is a bigger issue, because if the durations get bigger than what a long can hold (what will happen fast with nanosec resolution) the problems will come.
Can this be resolved with an small fix to the duration_traits_adapted struct or have there to be more fixes?
Here the compiler warning (VS.net 2005 SP1)
boost\boost/date_time/time_system_split.hpp(189) : warning C4244: 'initializing' : conversion from '__int64' to 'long', possible loss of data
What version of boost are you using b/c AFAICT, int_type should be 64 bits if things are setup correctly. That is, you should be selecting this set of traits: //! traits struct for time_resolution_traits implementation type struct time_resolution_traits_adapted64_impl { typedef boost::int64_t int_type; which should give you 64 bits? But clearly, something else is going on... Jeff