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// Boost.Bimap
//
// Copyright (c) 2006-2007 Matias Capeletto
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
/// \file container_adaptor/container_adaptor.hpp
/// \brief Container adaptor to build a type that is compliant to the concept of a container.
#ifndef BOOST_BIMAP_CONTAINER_ADAPTOR_CONTAINER_ADAPTOR_HPP
#define BOOST_BIMAP_CONTAINER_ADAPTOR_CONTAINER_ADAPTOR_HPP
#if defined(_MSC_VER) && (_MSC_VER>=1200)
#pragma once
#endif
#include <boost/config.hpp>
#include <utility>
#include <boost/mpl/if.hpp>
#include <boost/mpl/aux_/na.hpp>
#include <boost/bimap/container_adaptor/detail/identity_converters.hpp>
#include <boost/iterator/iterator_traits.hpp>
#include <boost/bimap/container_adaptor/detail/functor_bag.hpp>
#include <boost/mpl/vector.hpp>
#include <boost/mpl/copy.hpp>
#include <boost/mpl/front_inserter.hpp>
#include <boost/call_traits.hpp>
namespace boost {
namespace bimaps {
/// \brief Container Adaptor toolbox, easy way to build new containers from existing ones.
namespace container_adaptor {
/// \brief Container adaptor to build a type that is compliant to the concept of a container.
template
<
class Base,
class Iterator,
class ConstIterator,
class IteratorToBaseConverter = ::boost::mpl::na,
class IteratorFromBaseConverter = ::boost::mpl::na,
class ValueToBaseConverter = ::boost::mpl::na,
class ValueFromBaseConverter = ::boost::mpl::na,
class FunctorsFromDerivedClasses = mpl::vector<>
>
class container_adaptor
{
// MetaData -------------------------------------------------------------
public:
typedef Iterator iterator;
typedef ConstIterator const_iterator;
typedef BOOST_DEDUCED_TYPENAME iterator_value < iterator >::type value_type;
typedef BOOST_DEDUCED_TYPENAME iterator_pointer < iterator >::type pointer;
typedef BOOST_DEDUCED_TYPENAME iterator_reference< iterator >::type reference;
typedef BOOST_DEDUCED_TYPENAME iterator_reference< const_iterator >::type const_reference;
typedef BOOST_DEDUCED_TYPENAME Base::size_type size_type;
typedef BOOST_DEDUCED_TYPENAME Base::difference_type difference_type;
typedef BOOST_DEDUCED_TYPENAME mpl::if_< ::boost::mpl::is_na<IteratorToBaseConverter>,
// {
::boost::bimaps::container_adaptor::detail::
iterator_to_base_identity
<
BOOST_DEDUCED_TYPENAME Base::iterator , iterator,
BOOST_DEDUCED_TYPENAME Base::const_iterator , const_iterator
>,
// }
// else
// {
IteratorToBaseConverter
// }
>::type iterator_to_base;
typedef BOOST_DEDUCED_TYPENAME mpl::if_< ::boost::mpl::is_na<IteratorFromBaseConverter>,
// {
::boost::bimaps::container_adaptor::detail::
iterator_from_base_identity
<
BOOST_DEDUCED_TYPENAME Base::iterator , iterator,
BOOST_DEDUCED_TYPENAME Base::const_iterator , const_iterator
>,
// }
// else
// {
IteratorFromBaseConverter
// }
>::type iterator_from_base;
typedef BOOST_DEDUCED_TYPENAME mpl::if_< ::boost::mpl::is_na<ValueToBaseConverter>,
// {
::boost::bimaps::container_adaptor::detail::
value_to_base_identity
<
BOOST_DEDUCED_TYPENAME Base::value_type,
value_type
>,
// }
// else
// {
ValueToBaseConverter
// }
>::type value_to_base;
typedef BOOST_DEDUCED_TYPENAME mpl::if_< ::boost::mpl::is_na<ValueFromBaseConverter>,
// {
::boost::bimaps::container_adaptor::detail::
value_from_base_identity
<
BOOST_DEDUCED_TYPENAME Base::value_type,
value_type
>,
// }
// else
// {
ValueFromBaseConverter
// }
>::type value_from_base;
// ACCESS -----------------------------------------------------------------
public:
explicit container_adaptor(Base & c) : dwfb(c) {}
protected:
typedef Base base_type;
typedef container_adaptor container_adaptor_;
const Base & base() const { return dwfb.data; }
Base & base() { return dwfb.data; }
// Interface --------------------------------------------------------------
public:
size_type size() const { return base().size(); }
size_type max_size() const { return base().max_size(); }
bool empty() const { return base().empty(); }
iterator begin()
{
return this->template functor<iterator_from_base>()( base().begin() );
}
iterator end()
{
return this->template functor<iterator_from_base>()( base().end() );
}
const_iterator begin() const
{
return this->template functor<iterator_from_base>()( base().begin() );
}
const_iterator end() const
{
return this->template functor<iterator_from_base>()( base().end() );
}
iterator erase(iterator pos)
{
return this->template functor<iterator_from_base>()(
base().erase(this->template functor<iterator_to_base>()(pos))
);
}
iterator erase(iterator first, iterator last)
{
return this->template functor<iterator_from_base>()(
base().erase(
this->template functor<iterator_to_base>()(first),
this->template functor<iterator_to_base>()(last)
)
);
}
void clear()
{
base().clear();
}
template< class InputIterator >
void insert(InputIterator iterBegin, InputIterator iterEnd)
{
for( ; iterBegin != iterEnd ; ++iterBegin )
{
base().insert( this->template
functor<value_to_base>()( *iterBegin )
);
}
}
std::pair<iterator, bool> insert(
BOOST_DEDUCED_TYPENAME ::boost::call_traits< value_type >::param_type x)
{
std::pair< BOOST_DEDUCED_TYPENAME Base::iterator, bool > r(
base().insert( this->template functor<value_to_base>()(x) )
);
return std::pair<iterator, bool>( this->template
functor<iterator_from_base>()(r.first),r.second
);
}
iterator insert(iterator pos,
BOOST_DEDUCED_TYPENAME ::boost::call_traits< value_type >::param_type x)
{
return this->template functor<iterator_from_base>()(
base().insert(
this->template functor<iterator_to_base>()(pos),
this->template functor<value_to_base>()(x))
);
}
void swap( container_adaptor & c )
{
base().swap( c.base() );
}
// Access to functors ----------------------------------------------------
protected:
template< class Functor >
Functor & functor()
{
return dwfb.template functor<Functor>();
}
template< class Functor >
Functor const & functor() const
{
return dwfb.template functor<Functor>();
}
// Data ------------------------------------------------------------------
private:
::boost::bimaps::container_adaptor::detail::data_with_functor_bag
<
Base &,
BOOST_DEDUCED_TYPENAME mpl::copy
<
mpl::vector
<
iterator_to_base,
iterator_from_base,
value_to_base,
value_from_base
>,
mpl::front_inserter< FunctorsFromDerivedClasses >
>::type
> dwfb;
};
} // namespace container_adaptor
} // namespace bimaps
} // namespace boost
#endif // BOOST_BIMAP_CONTAINER_ADAPTOR_CONTAINER_ADAPTOR_HPP
|
