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