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// Boost.Range library
//
// Copyright Thorsten Ottosen 2003-2004. Use, modification and
// distribution is subject to 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)
//
// For more information, see http://www.boost.org/libs/range/
//
#ifndef BOOST_RANGE_DETAIL_VALUE_TYPE_HPP
#define BOOST_RANGE_DETAIL_VALUE_TYPE_HPP
#include <boost/range/detail/common.hpp>
#include <boost/range/detail/remove_extent.hpp>
#include <boost/iterator/iterator_traits.hpp>
//////////////////////////////////////////////////////////////////////////////
// missing partial specialization workaround.
//////////////////////////////////////////////////////////////////////////////
namespace boost
{
namespace range_detail
{
template< typename T >
struct range_value_type_;
template<>
struct range_value_type_<std_container_>
{
template< typename C >
struct pts
{
typedef BOOST_RANGE_DEDUCED_TYPENAME C::value_type type;
};
};
template<>
struct range_value_type_<std_pair_>
{
template< typename P >
struct pts
{
typedef BOOST_RANGE_DEDUCED_TYPENAME boost::iterator_value< BOOST_RANGE_DEDUCED_TYPENAME P::first_type >::type type;
};
};
template<>
struct range_value_type_<array_>
{
template< typename T >
struct pts
{
typedef BOOST_DEDUCED_TYPENAME remove_extent<T>::type type;
};
};
}
template< typename C >
class range_value
{
typedef BOOST_DEDUCED_TYPENAME range_detail::range<C>::type c_type;
public:
typedef BOOST_DEDUCED_TYPENAME range_detail::range_value_type_<c_type>::BOOST_NESTED_TEMPLATE pts<C>::type type;
};
}
#endif
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