Chris@16: /*-----------------------------------------------------------------------------+
Chris@16: Copyright (c) 2010-2010: Joachim Faulhaber
Chris@16: +------------------------------------------------------------------------------+
Chris@16:    Distributed under the Boost Software License, Version 1.0.
Chris@16:       (See accompanying file LICENCE.txt or copy at
Chris@16:            http://www.boost.org/LICENSE_1_0.txt)
Chris@16: +-----------------------------------------------------------------------------*/
Chris@16: #ifndef BOOST_ICL_CONTINUOUS_INTERVAL_HPP_JOFA_100327
Chris@16: #define BOOST_ICL_CONTINUOUS_INTERVAL_HPP_JOFA_100327
Chris@16: 
Chris@16: #include <functional> 
Chris@16: #include <boost/static_assert.hpp> 
Chris@16: #include <boost/concept/assert.hpp>
Chris@16: #include <boost/icl/detail/concept_check.hpp>
Chris@16: #include <boost/icl/concept/interval.hpp>
Chris@16: #include <boost/icl/concept/container.hpp>
Chris@16: #include <boost/icl/type_traits/value_size.hpp>
Chris@16: #include <boost/icl/type_traits/type_to_string.hpp>
Chris@16: #include <boost/icl/type_traits/is_continuous.hpp>
Chris@16: #include <boost/icl/type_traits/is_continuous_interval.hpp>
Chris@16: #include <boost/icl/interval_bounds.hpp>
Chris@16: 
Chris@16: namespace boost{namespace icl
Chris@16: {
Chris@16: 
Chris@16: template <class DomainT, 
Chris@16:           ICL_COMPARE Compare = ICL_COMPARE_INSTANCE(ICL_COMPARE_DEFAULT, DomainT)>
Chris@16: class continuous_interval
Chris@16: {
Chris@16: public:
Chris@16:     typedef continuous_interval<DomainT,Compare> type;
Chris@16:     typedef DomainT domain_type;
Chris@16:     typedef ICL_COMPARE_DOMAIN(Compare,DomainT) domain_compare;
Chris@16:     typedef typename bounded_value<DomainT>::type bounded_domain_type;
Chris@16: 
Chris@16: public:
Chris@16:     //==========================================================================
Chris@16:     //= Construct, copy, destruct
Chris@16:     //==========================================================================
Chris@16:     /** Default constructor; yields an empty interval <tt>[0,0)</tt>. */
Chris@16:     continuous_interval()
Chris@16:         : _lwb(identity_element<DomainT>::value()), _upb(identity_element<DomainT>::value())
Chris@16:         , _bounds(interval_bounds::right_open())
Chris@16:     {
Chris@16:         BOOST_CONCEPT_ASSERT((DefaultConstructibleConcept<DomainT>));
Chris@16:         BOOST_CONCEPT_ASSERT((LessThanComparableConcept<DomainT>));
Chris@16:         BOOST_STATIC_ASSERT((icl::is_continuous<DomainT>::value)); 
Chris@16:     }
Chris@16: 
Chris@16:     //NOTE: Compiler generated copy constructor is used
Chris@16: 
Chris@16:     /** Constructor for a closed singleton interval <tt>[val,val]</tt> */
Chris@16:     explicit continuous_interval(const DomainT& val)
Chris@16:         : _lwb(val), _upb(val), _bounds(interval_bounds::closed())
Chris@16:     {
Chris@16:         BOOST_CONCEPT_ASSERT((DefaultConstructibleConcept<DomainT>));
Chris@16:         BOOST_CONCEPT_ASSERT((LessThanComparableConcept<DomainT>));
Chris@16:         BOOST_STATIC_ASSERT((icl::is_continuous<DomainT>::value));
Chris@16:     }
Chris@16: 
Chris@16:     /** Interval from <tt>low</tt> to <tt>up</tt> with bounds <tt>bounds</tt> */
Chris@16:     continuous_interval(const DomainT& low, const DomainT& up, 
Chris@16:                       interval_bounds bounds = interval_bounds::right_open(),
Chris@16:                       continuous_interval* = 0)
Chris@16:         : _lwb(low), _upb(up), _bounds(bounds)
Chris@16:     {
Chris@16:         BOOST_CONCEPT_ASSERT((DefaultConstructibleConcept<DomainT>));
Chris@16:         BOOST_CONCEPT_ASSERT((LessThanComparableConcept<DomainT>));
Chris@16:         BOOST_STATIC_ASSERT((icl::is_continuous<DomainT>::value));
Chris@16:     }
Chris@16: 
Chris@16:     domain_type     lower()const { return _lwb; }
Chris@16:     domain_type     upper()const { return _upb; }
Chris@16:     interval_bounds bounds()const{ return _bounds; }
Chris@16: 
Chris@16:     static continuous_interval open     (const DomainT& lo, const DomainT& up){ return continuous_interval(lo, up, interval_bounds::open());      }
Chris@16:     static continuous_interval right_open(const DomainT& lo, const DomainT& up){ return continuous_interval(lo, up, interval_bounds::right_open());}
Chris@16:     static continuous_interval left_open (const DomainT& lo, const DomainT& up){ return continuous_interval(lo, up, interval_bounds::left_open()); }
Chris@16:     static continuous_interval closed   (const DomainT& lo, const DomainT& up){ return continuous_interval(lo, up, interval_bounds::closed());    }
Chris@16: 
Chris@16: private:
Chris@16:     domain_type     _lwb;
Chris@16:     domain_type     _upb;
Chris@16:     interval_bounds _bounds;
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: //==============================================================================
Chris@16: //=T continuous_interval -> concept interval
Chris@16: //==============================================================================
Chris@16: template<class DomainT, ICL_COMPARE Compare>
Chris@16: struct interval_traits< icl::continuous_interval<DomainT, Compare> >
Chris@16: {
Chris@16:     typedef interval_traits type;
Chris@16:     typedef DomainT domain_type;
Chris@16:     typedef ICL_COMPARE_DOMAIN(Compare,DomainT) domain_compare;
Chris@16:     typedef icl::continuous_interval<DomainT, Compare> interval_type;
Chris@16: 
Chris@16:     static interval_type construct(const domain_type& lo, const domain_type& up)
Chris@16:     {
Chris@16:         return interval_type(lo, up);
Chris@16:     }
Chris@16: 
Chris@16:     static domain_type lower(const interval_type& inter_val){ return inter_val.lower(); };
Chris@16:     static domain_type upper(const interval_type& inter_val){ return inter_val.upper(); };
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: //==============================================================================
Chris@16: //=T continuous_interval -> concept dynamic_interval
Chris@16: //==============================================================================
Chris@16: template<class DomainT, ICL_COMPARE Compare>
Chris@16: struct dynamic_interval_traits<boost::icl::continuous_interval<DomainT,Compare> >
Chris@16: {
Chris@16:     typedef dynamic_interval_traits type;
Chris@16:     typedef boost::icl::continuous_interval<DomainT,Compare> interval_type;
Chris@16:     typedef DomainT domain_type;
Chris@16:     typedef ICL_COMPARE_DOMAIN(Compare,DomainT) domain_compare;
Chris@16: 
Chris@16:     static interval_type construct(const domain_type lo, const domain_type up, interval_bounds bounds)
Chris@16:     {
Chris@16:         return icl::continuous_interval<DomainT,Compare>(lo, up, bounds,
Chris@16:             static_cast<icl::continuous_interval<DomainT,Compare>* >(0) );
Chris@16:     }
Chris@16: 
Chris@16:     static interval_type construct_bounded(const bounded_value<DomainT>& lo, 
Chris@16:                                            const bounded_value<DomainT>& up)
Chris@16:     {
Chris@16:         return  icl::continuous_interval<DomainT,Compare>
Chris@16:                 (
Chris@16:                     lo.value(), up.value(),
Chris@16:                     lo.bound().left() | up.bound().right(),
Chris@16:                     static_cast<icl::continuous_interval<DomainT,Compare>* >(0) 
Chris@16:                 );
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: //==============================================================================
Chris@16: //= Type traits
Chris@16: //==============================================================================
Chris@16: template <class DomainT, ICL_COMPARE Compare> 
Chris@16: struct interval_bound_type< continuous_interval<DomainT,Compare> >
Chris@16: {
Chris@16:     typedef interval_bound_type type;
Chris@16:     BOOST_STATIC_CONSTANT(bound_type, value = interval_bounds::dynamic);
Chris@16: };
Chris@16: 
Chris@16: template <class DomainT, ICL_COMPARE Compare> 
Chris@16: struct is_continuous_interval<continuous_interval<DomainT,Compare> >
Chris@16: {
Chris@16:     typedef is_continuous_interval<continuous_interval<DomainT,Compare> > type;
Chris@16:     BOOST_STATIC_CONSTANT(bool, value = true);
Chris@16: };
Chris@16: 
Chris@16: template <class DomainT, ICL_COMPARE Compare>
Chris@16: struct type_to_string<icl::continuous_interval<DomainT,Compare> >
Chris@16: {
Chris@16:     static std::string apply()
Chris@16:     { return "cI<"+ type_to_string<DomainT>::apply() +">"; }
Chris@16: };
Chris@16: 
Chris@16: template<class DomainT> 
Chris@16: struct value_size<icl::continuous_interval<DomainT> >
Chris@16: {
Chris@16:     static std::size_t apply(const icl::continuous_interval<DomainT>&) 
Chris@16:     { return 2; }
Chris@16: };
Chris@16: 
Chris@16: }} // namespace icl boost
Chris@16: 
Chris@16: #endif
Chris@16: