[857] | 1 | // Boost.Range library
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| 2 | //
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| 3 | // Copyright Thorsten Ottosen 2003-2004. Use, modification and
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| 4 | // distribution is subject to the Boost Software License, Version
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| 5 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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| 6 | // http://www.boost.org/LICENSE_1_0.txt)
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| 7 | //
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| 8 | // For more information, see http://www.boost.org/libs/range/
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| 9 | //
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| 10 |
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| 11 | #ifndef BOOST_RANGE_DETAIL_CONST_ITERATOR_HPP
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| 12 | #define BOOST_RANGE_DETAIL_CONST_ITERATOR_HPP
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| 13 |
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| 14 | #include <boost/range/detail/common.hpp>
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| 15 | #include <boost/range/detail/remove_extent.hpp>
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| 16 |
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| 17 | //////////////////////////////////////////////////////////////////////////////
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| 18 | // missing partial specialization workaround.
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| 19 | //////////////////////////////////////////////////////////////////////////////
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| 20 |
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| 21 | namespace boost
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| 22 | {
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| 23 | namespace range_detail
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| 24 | {
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| 25 | template< typename T >
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| 26 | struct range_const_iterator_;
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| 27 |
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| 28 | template<>
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| 29 | struct range_const_iterator_<std_container_>
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| 30 | {
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| 31 | template< typename C >
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| 32 | struct pts
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| 33 | {
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| 34 | typedef BOOST_RANGE_DEDUCED_TYPENAME C::const_iterator type;
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| 35 | };
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| 36 | };
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| 37 |
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| 38 | template<>
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| 39 | struct range_const_iterator_<std_pair_>
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| 40 | {
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| 41 | template< typename P >
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| 42 | struct pts
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| 43 | {
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| 44 | typedef BOOST_RANGE_DEDUCED_TYPENAME P::first_type type;
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| 45 | };
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| 46 | };
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| 47 |
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| 48 |
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| 49 | template<>
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| 50 | struct range_const_iterator_<array_>
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| 51 | {
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| 52 | template< typename T >
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| 53 | struct pts
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| 54 | {
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| 55 | typedef const BOOST_RANGE_DEDUCED_TYPENAME
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| 56 | remove_extent<T>::type* type;
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| 57 | };
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| 58 | };
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| 59 |
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| 60 | template<>
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| 61 | struct range_const_iterator_<char_array_>
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| 62 | {
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| 63 | template< typename T >
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| 64 | struct pts
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| 65 | {
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| 66 | typedef const BOOST_RANGE_DEDUCED_TYPENAME
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| 67 | remove_extent<T>::type* type;
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| 68 | };
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| 69 | };
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| 70 |
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| 71 | template<>
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| 72 | struct range_const_iterator_<char_ptr_>
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| 73 | {
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| 74 | template< typename S >
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| 75 | struct pts
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| 76 | {
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| 77 | typedef const char* type;
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| 78 | };
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| 79 | };
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| 80 |
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| 81 | template<>
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| 82 | struct range_const_iterator_<const_char_ptr_>
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| 83 | {
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| 84 | template< typename S >
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| 85 | struct pts
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| 86 | {
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| 87 | typedef const char* type;
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| 88 | };
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| 89 | };
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| 90 |
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| 91 | template<>
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| 92 | struct range_const_iterator_<wchar_t_ptr_>
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| 93 | {
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| 94 | template< typename S >
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| 95 | struct pts
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| 96 | {
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| 97 | typedef const wchar_t* type;
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| 98 | };
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| 99 | };
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| 100 |
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| 101 | template<>
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| 102 | struct range_const_iterator_<const_wchar_t_ptr_>
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| 103 | {
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| 104 | template< typename S >
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| 105 | struct pts
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| 106 | {
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| 107 | typedef const wchar_t* type;
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| 108 | };
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| 109 | };
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| 110 |
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| 111 | }
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| 112 |
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| 113 | template< typename C >
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| 114 | class range_const_iterator
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| 115 | {
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| 116 | typedef BOOST_DEDUCED_TYPENAME range_detail::range<C>::type c_type;
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| 117 | public:
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| 118 | typedef BOOST_DEDUCED_TYPENAME range_detail::range_const_iterator_<c_type>::BOOST_NESTED_TEMPLATE pts<C>::type type;
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| 119 | };
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| 120 |
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| 121 | }
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| 122 |
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| 123 | #endif
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