template<class InternetProtocol>
bool operator==(const basic_resolver_entry<InternetProtocol>& a,
const basic_resolver_entry<InternetProtocol>& b);
Returns: a.endpoint() == b.endpoint() && a.host_name() == b.host_name() && a.service_name() == b.service_name().
template<class InternetProtocol>
bool operator!=(const basic_resolver_entry<InternetProtocol>& a,
const basic_resolver_entry<InternetProtocol>& b);
Returns: !(a == b).