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);
}
inline
period<point_rep,duration_rep>
period<point_rep,duration_rep>::intersection(const period<point_rep,duration_rep>& other) const
{
if (begin_ > other.begin_) {
if (last_ <= other.last_) { //case2
return *this;
}
//case 1
return period<point_rep,duration_rep>(begin_, other.end());
}
else {
if (last_ <= other.last_) { //case3
return period<point_rep,duration_rep>(other.begin_, this->end());
}
//case4
return other;
}
//unreachable
}
inline
period<point_rep,duration_rep>
period<point_rep,duration_rep>::merge(const period<point_rep,duration_rep>& other) const
{
if (this->intersects(other)) {
if (begin_ < other.begin_) {
return period<point_rep,duration_rep>(begin_, last_ > other.last_ ? this->end() : other.end());
}
return period<point_rep,duration_rep>(other.begin_, last_ > other.last_ ? this->end() : other.end());
}
return period<point_rep,duration_rep>(begin_,begin_); // no intersect return null
}
/// Allow periods to be compared for equality
bool operator==(const period<void> &p) const {
return start() == p.start() && end() == p.end();
}