// 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/detail/identity_converters.hpp | |
/// \brief Value and iterators identity converters. | |
#ifndef BOOST_BIMAP_CONTAINER_ADAPTOR_DETAIL_IDENTITY_CONVERTERS_HPP | |
#define BOOST_BIMAP_CONTAINER_ADAPTOR_DETAIL_IDENTITY_CONVERTERS_HPP | |
#if defined(_MSC_VER) && (_MSC_VER>=1200) | |
#pragma once | |
#endif | |
#include <boost/config.hpp> | |
namespace boost { | |
namespace bimaps { | |
namespace container_adaptor { | |
/// \brief Details of the container adaptor toolbox | |
namespace detail { | |
/// \brief Iterator identity converter used by default in container adaptors. | |
/** | |
If Iterator and ConstIterator are of the same type one of the convert function is not | |
included. | |
**/ | |
template | |
< | |
class BaseIterator , class Iterator, | |
class BaseConstIterator , class ConstIterator | |
> | |
struct iterator_to_base_identity | |
{ | |
BaseIterator operator()(Iterator iter) const | |
{ | |
return BaseIterator(iter); | |
} | |
BaseConstIterator operator()(ConstIterator iter) const | |
{ | |
return BaseConstIterator(iter); | |
} | |
}; | |
#ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
template< class BaseIterator, class Iterator > | |
struct iterator_to_base_identity<BaseIterator,Iterator,BaseIterator,Iterator> | |
{ | |
BaseIterator operator()(Iterator iter) const | |
{ | |
return BaseIterator(iter); | |
} | |
}; | |
#endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
/// \brief Iterator from base identity converter used by default in container adaptors. | |
/** | |
If Iterator and ConstIterator are of the same type one of the convert function is not | |
included. | |
**/ | |
template | |
< | |
class BaseIterator , class Iterator, | |
class BaseConstIterator , class ConstIterator | |
> | |
struct iterator_from_base_identity | |
{ | |
Iterator operator()(BaseIterator iter) const | |
{ | |
return Iterator(iter); | |
} | |
ConstIterator operator()(BaseConstIterator iter) const | |
{ | |
return ConstIterator(iter); | |
} | |
}; | |
#ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
template< class BaseIterator, class Iterator, class ConstIterator > | |
struct iterator_from_base_identity<BaseIterator,Iterator,BaseIterator,ConstIterator> | |
{ | |
Iterator operator()(BaseIterator iter) const | |
{ | |
return Iterator(iter); | |
} | |
}; | |
#endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
/// \brief Value to base identity converter used by default in container adaptors. | |
template< class BaseValue, class Value > | |
struct value_to_base_identity | |
{ | |
BaseValue operator()(const Value & val) const | |
{ | |
return BaseValue(val); | |
} | |
}; | |
#ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
template< class Value > | |
struct value_to_base_identity< Value, Value > | |
{ | |
const Value & operator()(const Value & val) const | |
{ | |
return val; | |
} | |
}; | |
#endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
/// \brief Value from base identity converter used by default in container adaptors. | |
template< class BaseValue, class Value > | |
struct value_from_base_identity | |
{ | |
Value operator()(const BaseValue & val) const | |
{ | |
return Value(val); | |
} | |
}; | |
#ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
template< class Value > | |
struct value_from_base_identity<Value,Value> | |
{ | |
Value & operator()(Value & val) const | |
{ | |
return val; | |
} | |
const Value & operator()(const Value & val) const | |
{ | |
return val; | |
} | |
}; | |
#endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
/// \brief Key to base identity converter used by default in container adaptors. | |
template< class BaseKey, class Key > | |
struct key_to_base_identity | |
{ | |
BaseKey operator()(const Key & k) const | |
{ | |
return BaseKey(k); | |
} | |
}; | |
#ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
template< class Key > | |
struct key_to_base_identity< Key, Key > | |
{ | |
// As default accept any type as key in order to allow container | |
// adaptors to work with compatible key types | |
template< class CompatibleKey > | |
const CompatibleKey & operator()(const CompatibleKey & k) const | |
{ | |
return k; | |
} | |
}; | |
#endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
} // namespace detail | |
} // namespace container_adaptor | |
} // namespace bimaps | |
} // namespace boost | |
#endif // BOOST_BIMAP_CONTAINER_ADAPTOR_DETAIL_IDENTITY_CONVERTERS_HPP | |