Function equal

gecode/third-party/boost/numeric/interval/utility.hpp:157–162

}

template<class T, class Policies1, class Policies2> inline
bool equal(const interval<T, Policies1>& x, const interval<T, Policies2>& y)
{
  if (empty(x)) return empty(y);
  return !empty(y) && x.lower() == y.lower() && x.upper() == y.upper();
}

template<class T, class Policies> inline
interval<T, Policies> intersect(const interval<T, Policies>& x,