[Boost-users] time_period constructor question

From: Stuart Siegel (ssiegel95_at_[hidden])
Date: 2005-01-25 22:58:32

Can anyone tell me why the line:

time_period t4(t2);

in the attached cpp file doesn't compile but the line:

time_period t3(t1);

does?  it seems like i should be calling the same copy constructor in
both cases but g++ 3.3.4 complains:

error: no matching function for call to `
   boost::date_time::period<boost::posix_time::ptime, 
  
boost::posix_time::time_duration>::period(boost::posix_time::time_period

   (&)(boost::posix_time::ptime, boost::posix_time::ptime))'
/usr/include/boost/date_time/period.hpp:64: error: candidates are: 
   boost::date_time::period<boost::posix_time::ptime, 
   boost::posix_time::time_duration>::period(const 
   boost::date_time::period<boost::posix_time::ptime, 
   boost::posix_time::time_duration>&)
/usr/include/boost/date_time/period.hpp:109: error:                 
   boost::date_time::period<point_rep,
duration_rep>::period(point_rep, 
   duration_rep) [with point_rep = boost::posix_time::ptime,
duration_rep = 
   boost::posix_time::time_duration]
/usr/include/boost/date_time/period.hpp:99: error:                 
   boost::date_time::period<point_rep,
duration_rep>::period(point_rep, 
   point_rep) [with point_rep = boost::posix_time::ptime,
duration_rep = 
   boost::posix_time::time_duration]

//--------------------------------cut here-------------------

#include "boost/date_time/posix_time/posix_time_types.hpp"
#include "boost/date_time/gregorian/gregorian_types.hpp" 

int main()
{
  using namespace boost::posix_time;
  using namespace boost::gregorian;
  

  //----------------------------------------------
  date dmin( min_date_time) ; ptime tmin( dmin ); 
  date dmax( max_date_time) ; ptime tmax( dmax ); 
  time_period t1( tmin, tmax );
  //---------------------------------------------
  time_period t2( ptime(min_date_time), ptime(max_date_time) );

  //why does this compile (on g++ 3.3.4)
  time_period t3(t1);
  //but this doesn't?  i.e., why isn't a time_period a time_period a
time_period?
  time_period t4(t2);

  return 0;
  
}

                
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