date_time day_iterator Sınıfı

constructor
Şöyle yaparız

boost::posix_time::ptime now = boost::posix_time::second_clock::local_time();
boost::gregorian::date today (now.date());
boost::gregorian::day_iterator dayIterator (today,-1);

operator ++ metodu
Şöyle yaparız

int howManyDays = ...;
for (; howManyDays != 0; ++dayIterator)
{
  ...;     
  howManyDays--;
}