Function template days_until

Function template days_until_weekday

boost::date_time::days_until_weekday — Calculates the number of days until the next weekday.

template<typename date_type, typename weekday_type> 
  date_type::duration_type 
  days_until_weekday(const date_type & d, const weekday_type & wd);

Calculates the number of days until the next weekday. If the date given falls on a Sunday and the given weekday is Tuesday the result will be 2 days