inline
bool
period<point_rep,duration_rep>::is_adjacent(const period<point_rep,duration_rep>& other) const
{
return (other.begin() == end() ||
begin_ == other.end());
}
inline
period<point_rep,duration_rep>
period<point_rep,duration_rep>::span(const period<point_rep,duration_rep>& other) const
{
point_rep start((begin_ < other.begin_) ? begin() : other.begin());
point_rep newend((last_ < other.last_) ? other.end() : this->end());
return period<point_rep,duration_rep>(start, newend);
}