structured_pair.hpp

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/**
This class allows you to specify the order in wich the two data types will be
in the layout of the class.
                                                                               **/

template< class FirstType, class SecondType, class Info, class Layout = normal_layout >
class structured_pair :

    public ::boost::bimaps::relation::detail::pair_info_hook
    <
        FirstType, SecondType,
        Info,
        Layout

    >

{
    typedef BOOST_DEDUCED_TYPENAME ::boost::bimaps::relation::detail::pair_info_hook
    <
        FirstType, SecondType,
        Info,
        Layout

    > base_;

    public:

    typedef ::boost::mpl::vector3<
        structured_pair< FirstType, SecondType, Info, normal_layout >,
        structured_pair< FirstType, SecondType, Info, mirror_layout >,
        BOOST_DEDUCED_TYPENAME ::boost::mpl::if_<
            BOOST_DEDUCED_TYPENAME ::boost::is_same<Layout, normal_layout>::type,
            mutant_relation< FirstType, SecondType, Info, true >,
            mutant_relation< SecondType, FirstType, Info, true >
        >::type

    > mutant_views;

    structured_pair() {}

    structured_pair(BOOST_DEDUCED_TYPENAME boost::call_traits<
                        BOOST_DEDUCED_TYPENAME base_::first_type  >::param_type f,
                    BOOST_DEDUCED_TYPENAME boost::call_traits<
                        BOOST_DEDUCED_TYPENAME base_::second_type >::param_type s)
        : base_(f,s) {}

    structured_pair(BOOST_DEDUCED_TYPENAME boost::call_traits<
                        BOOST_DEDUCED_TYPENAME base_::first_type  >::param_type f,
                    BOOST_DEDUCED_TYPENAME boost::call_traits<
                        BOOST_DEDUCED_TYPENAME base_::second_type >::param_type s,
                    BOOST_DEDUCED_TYPENAME boost::call_traits<
                        BOOST_DEDUCED_TYPENAME base_::info_type   >::param_type i)
        : base_(f,s,i) {}

    template< class OtherLayout >
    structured_pair(
        const structured_pair<FirstType,SecondType,Info,OtherLayout> & p)
        : base_(p) {}

    template< class OtherLayout >
    structured_pair& operator=(
        const structured_pair<FirstType,SecondType,OtherLayout> & p)
    {
        base_::change_to(p);
        return *this;
    }

    template< class First, class Second >
    structured_pair(const std::pair<First,Second> & p) :
        base_(p.first,p.second)
    {}

    template< class First, class Second >
    structured_pair& operator=(const std::pair<First,Second> & p)
    {
        base_::first  = p.first;
        base_::second = p.second;
        base_::clear_info();
        return *this;
    }

    template< class Tag >
    const BOOST_DEDUCED_TYPENAME ::boost::bimaps::relation::support::
        result_of::get<Tag,const structured_pair>::type
    get(BOOST_EXPLICIT_TEMPLATE_TYPE(Tag)) const
    {
        return ::boost::bimaps::relation::support::get<Tag>(*this);
    }

    template< class Tag >
    BOOST_DEDUCED_TYPENAME ::boost::bimaps::relation::support::
        result_of::get<Tag,structured_pair>::type
    get(BOOST_EXPLICIT_TEMPLATE_TYPE(Tag))
    {
        return ::boost::bimaps::relation::support::get<Tag>(*this);
    }
};

// structured_pair - structured_pair

template< class FirstType, class SecondType, class Info, class Layout1, class Layout2 >
bool operator==(const structured_pair<FirstType,SecondType,Info,Layout1> & a,
                const structured_pair<FirstType,SecondType,Info,Layout2> & b)
{
    return ( ( a.first  == b.first  ) &&
             ( a.second == b.second ) );
}

template< class FirstType, class SecondType, class Info, class Layout1, class Layout2 >
bool operator!=(const structured_pair<FirstType,SecondType,Info,Layout1> & a,
                const structured_pair<FirstType,SecondType,Info,Layout2> & b)
{
    return ! ( a == b );
}

template< class FirstType, class SecondType, class Info, class Layout1, class Layout2 >
bool operator<(const structured_pair<FirstType,SecondType,Info,Layout1> & a,
               const structured_pair<FirstType,SecondType,Info,Layout2> & b)
{
    return (  ( a.first  <  b.first  ) ||
             (( a.first == b.first ) && ( a.second < b.second )));
}

template< class FirstType, class SecondType, class Info, class Layout1, class Layout2 >
bool operator<=(const structured_pair<FirstType,SecondType,Info,Layout1> & a,
                const structured_pair<FirstType,SecondType,Info,Layout2> & b)
{
    return (  ( a.first  <  b.first  ) ||
             (( a.first == b.first ) && ( a.second <= b.second )));
}

template< class FirstType, class SecondType, class Info, class Layout1, class Layout2 >
bool operator>(const structured_pair<FirstType,SecondType,Info,Layout1> & a,
               const structured_pair<FirstType,SecondType,Info,Layout2> & b)
{
    return ( ( a.first  >  b.first  ) ||
             (( a.first == b.first ) && ( a.second > b.second )));
}

template< class FirstType, class SecondType, class Info, class Layout1, class Layout2 >
bool operator>=(const structured_pair<FirstType,SecondType,Info,Layout1> & a,
                const structured_pair<FirstType,SecondType,Info,Layout2> & b)
{
    return ( ( a.first  >  b.first  ) ||
             (( a.first == b.first ) && ( a.second >= b.second )));
}

// structured_pair - std::pair

template< class FirstType, class SecondType, class Info, class Layout, class F, class S >
bool operator==(const structured_pair<FirstType,SecondType,Info,Layout> & a,
                const std::pair<F,S> & b)
{
    return ( ( a.first  == b.first  ) &&
             ( a.second == b.second ) );
}

template< class FirstType, class SecondType, class Info, class Layout, class F, class S >
bool operator!=(const structured_pair<FirstType,SecondType,Info,Layout> & a,
                const std::pair<F,S> & b)
{
    return ! ( a == b );
}

template< class FirstType, class SecondType, class Info, class Layout, class F, class S >
bool operator<(const structured_pair<FirstType,SecondType,Info,Layout> & a,
               const std::pair<F,S> & b)
{
    return (  ( a.first  <  b.first  ) ||
             (( a.first == b.first ) && ( a.second < b.second )));
}

template< class FirstType, class SecondType, class Info, class Layout, class F, class S >
bool operator<=(const structured_pair<FirstType,SecondType,Info,Layout> & a,
                const std::pair<F,S> & b)
{
    return (  ( a.first  <  b.first  ) ||
             (( a.first == b.first ) && ( a.second <= b.second )));
}

template< class FirstType, class SecondType, class Info, class Layout, class F, class S >
bool operator>(const structured_pair<FirstType,SecondType,Info,Layout> & a,
               const std::pair<F,S> & b)
{
    return ( ( a.first  >  b.first  ) ||
             (( a.first == b.first ) && ( a.second > b.second )));
}

template< class FirstType, class SecondType, class Info, class Layout, class F, class S >
bool operator>=(const structured_pair<FirstType,SecondType,Info,Layout> & a,
                const std::pair<F,S> & b)
{
    return ( ( a.first  >  b.first  ) ||
             (( a.first == b.first ) && ( a.second >= b.second )));
}

// std::pair - sturctured_pair

template< class FirstType, class SecondType, class Info, class Layout, class F, class S >
bool operator==(const std::pair<F,S> & a,
                const structured_pair<FirstType,SecondType,Info,Layout> & b)
{
    return ( ( a.first  == b.first  ) &&
             ( a.second == b.second ) );
}

template< class FirstType, class SecondType, class Info, class Layout, class F, class S >
bool operator!=(const std::pair<F,S> & a,
                const structured_pair<FirstType,SecondType,Info,Layout> & b)
{
    return ! ( a == b );
}

template< class FirstType, class SecondType, class Info, class Layout, class F, class S >
bool operator<(const std::pair<F,S> & a,
               const structured_pair<FirstType,SecondType,Info,Layout> & b)
{
    return (  ( a.first  <  b.first  ) ||
             (( a.first == b.first ) && ( a.second < b.second )));
}

template< class FirstType, class SecondType, class Info, class Layout, class F, class S >
bool operator<=(const std::pair<F,S> & a,
                const structured_pair<FirstType,SecondType,Info,Layout> & b)
{
    return (  ( a.first  <  b.first  ) ||
             (( a.first == b.first ) && ( a.second <= b.second )));
}

template< class FirstType, class SecondType, class Info, class Layout, class F, class S >
bool operator>(const std::pair<F,S> & a,
               const structured_pair<FirstType,SecondType,Info,Layout> & b)
{
    return ( ( a.first  >  b.first  ) ||
             (( a.first == b.first ) && ( a.second > b.second )));
}

template< class FirstType, class SecondType, class Info, class Layout, class F, class S >
bool operator>=(const std::pair<F,S> & a,
                const structured_pair<FirstType,SecondType,Info,Layout> & b)
{
    return ( ( a.first  >  b.first  ) ||
             (( a.first == b.first ) && ( a.second >= b.second )));
}



} // namespace relation
} // namespace bimaps
} // namespace boost

#endif // BOOST_BIMAP_RELATION_STRUCTURED_PAIR_HPP