[boost] [date_time-1.32.0] XML serialisation and not-a-date-time

From: Russell Hind (rh_gmane_at_[hidden])
Date: 2005-06-17 06:24:55

I've been serialising date_time stuff (ptimes to be specific).  They 
weren't initialised when we were loading old files as they didn't 
containt the information, so when the file is saved in the new format, 
we get an entry in the XML archive:

<ptime_date class_id="26" tracking_level="0" version="0">
   <date>not-a-date-time</date>
</ptime_date>
<ptime_time_duration class_id="27" tracking_level="0" version="0">		 
<time_duration_hours>-1732919508</time_duration_hours>			 
<time_duration_minutes>0</time_duration_minutes>				 
<time_duration_seconds>22</time_duration_seconds>
 
<time_duration_fractional_seconds>775806</time_duration_fractional_seconds>
</ptime_time_duration>

I realise 'not-a-date-time' is invalid, and would be happy if the 
serialise failed in both directions, but currently it succeeds to write 
it to an oarchive, but fails to read it from an iarchive.

I don't mind which way we go (i.e. both valid or both invalid) but have 
oarchive working and iarchive failing isn't overly useful really.

Thanks

Russell