namespace boost {
  namespace icl {
    template<typename DomainT, typename CodomainT> struct mapping_pair;
    template<typename SubType, typename DomainT, typename CodomainT, 
             typename Traits = icl::partial_absorber, 
             ICL_COMPARE Compare = ICL_COMPARE_INSTANCE(ICL_COMPARE_DEFAULT, DomainT), 
             ICL_COMBINE Combine = ICL_COMBINE_INSTANCE(icl::inplace_plus, CodomainT), 
             ICL_SECTION Section = ICL_SECTION_INSTANCE(icl::inter_section, CodomainT), 
             ICL_INTERVAL(ICL_COMPARE) Interval = ICL_INTERVAL_INSTANCE(ICL_INTERVAL_DEFAULT, DomainT, Compare), 
             ICL_ALLOC Alloc = std::allocator> 
      class interval_base_map;
    template<typename SubType, typename DomainT, typename CodomainT, 
             typename Traits, ICL_COMPARE Compare, ICL_COMBINE Combine, 
             ICL_SECTION Section, ICL_INTERVAL(ICL_COMPARE) Interval, 
             ICL_ALLOC Alloc> 
      struct is_map<icl::interval_base_map< SubType, DomainT, CodomainT, Traits, Compare, Combine, Section, Interval, Alloc >>;
    template<typename SubType, typename DomainT, typename CodomainT, 
             typename Traits, ICL_COMPARE Compare, ICL_COMBINE Combine, 
             ICL_SECTION Section, ICL_INTERVAL(ICL_COMPARE) Interval, 
             ICL_ALLOC Alloc> 
      struct has_inverse<icl::interval_base_map< SubType, DomainT, CodomainT, Traits, Compare, Combine, Section, Interval, Alloc >>;
    template<typename SubType, typename DomainT, typename CodomainT, 
             typename Traits, ICL_COMPARE Compare, ICL_COMBINE Combine, 
             ICL_SECTION Section, ICL_INTERVAL(ICL_COMPARE) Interval, 
             ICL_ALLOC Alloc> 
      struct is_interval_container<icl::interval_base_map< SubType, DomainT, CodomainT, Traits, Compare, Combine, Section, Interval, Alloc >>;
    template<typename SubType, typename DomainT, typename CodomainT, 
             typename Traits, ICL_COMPARE Compare, ICL_COMBINE Combine, 
             ICL_SECTION Section, ICL_INTERVAL(ICL_COMPARE) Interval, 
             ICL_ALLOC Alloc> 
      struct absorbs_identities<icl::interval_base_map< SubType, DomainT, CodomainT, Traits, Compare, Combine, Section, Interval, Alloc >>;
    template<typename SubType, typename DomainT, typename CodomainT, 
             typename Traits, ICL_COMPARE Compare, ICL_COMBINE Combine, 
             ICL_SECTION Section, ICL_INTERVAL(ICL_COMPARE) Interval, 
             ICL_ALLOC Alloc> 
      struct is_total<icl::interval_base_map< SubType, DomainT, CodomainT, Traits, Compare, Combine, Section, Interval, Alloc >>;
  }
}