Function zero_in

gecode/third-party/boost/numeric/interval/utility.hpp:103–109

}

template<class T, class Policies> inline
bool zero_in(const interval<T, Policies>& x)
{
  if (interval_lib::detail::test_input(x)) return false;
  return (!interval_lib::user::is_pos(x.lower())) &&
         (!interval_lib::user::is_neg(x.upper()));
}

template<class T, class Policies> inline
bool in_zero(const interval<T, Policies>& x) // DEPRECATED