3 // Copyright Thorsten Ottosen 2003-2004. Use, modification and
4 // distribution is subject to the Boost Software License, Version
5 // 1.0. (See accompanying file LICENSE_1_0.txt or copy at
6 // http://www.boost.org/LICENSE_1_0.txt)
8 // For more information, see http://www.boost.org/libs/range/
11 #ifndef BOOST_RANGE_DETAIL_VALUE_TYPE_HPP
12 #define BOOST_RANGE_DETAIL_VALUE_TYPE_HPP
14 #include <boost/range/detail/common.hpp>
15 #include <boost/range/detail/remove_extent.hpp>
16 #include <boost/iterator/iterator_traits.hpp>
18 //////////////////////////////////////////////////////////////////////////////
19 // missing partial specialization workaround.
20 //////////////////////////////////////////////////////////////////////////////
24 namespace range_detail
26 template< typename T >
27 struct range_value_type_;
30 struct range_value_type_<std_container_>
32 template< typename C >
35 typedef BOOST_RANGE_DEDUCED_TYPENAME C::value_type type;
40 struct range_value_type_<std_pair_>
42 template< typename P >
45 typedef BOOST_RANGE_DEDUCED_TYPENAME boost::iterator_value< BOOST_RANGE_DEDUCED_TYPENAME P::first_type >::type type;
50 struct range_value_type_<array_>
52 template< typename T >
55 typedef BOOST_DEDUCED_TYPENAME remove_extent<T>::type type;
61 template< typename C >
64 typedef BOOST_DEDUCED_TYPENAME range_detail::range<C>::type c_type;
66 typedef BOOST_DEDUCED_TYPENAME range_detail::range_value_type_<c_type>::BOOST_NESTED_TEMPLATE pts<C>::type type;