[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_ITERATOR_HPP
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| 12 | #define BOOST_RANGE_DETAIL_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 | #include <boost/static_assert.hpp>
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| 18 |
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| 19 | //////////////////////////////////////////////////////////////////////////////
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| 20 | // missing partial specialization workaround.
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| 21 | //////////////////////////////////////////////////////////////////////////////
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| 22 |
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| 23 | namespace boost
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| 24 | {
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| 25 | namespace range_detail
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| 26 | {
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| 27 | template< typename T >
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| 28 | struct range_iterator_ {
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| 29 | template< typename C >
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| 30 | struct pts
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| 31 | {
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| 32 | typedef int type;
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| 33 | };
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| 34 | };
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| 35 |
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| 36 | template<>
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| 37 | struct range_iterator_<std_container_>
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| 38 | {
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| 39 | template< typename C >
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| 40 | struct pts
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| 41 | {
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| 42 | typedef BOOST_RANGE_DEDUCED_TYPENAME C::iterator type;
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| 43 | };
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| 44 | };
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| 45 |
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| 46 | template<>
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| 47 | struct range_iterator_<std_pair_>
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| 48 | {
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| 49 | template< typename P >
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| 50 | struct pts
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| 51 | {
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| 52 | typedef BOOST_RANGE_DEDUCED_TYPENAME P::first_type type;
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| 53 | };
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| 54 | };
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| 55 |
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| 56 | template<>
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| 57 | struct range_iterator_<array_>
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| 58 | {
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| 59 | template< typename T >
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| 60 | struct pts
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| 61 | {
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| 62 | typedef BOOST_RANGE_DEDUCED_TYPENAME
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| 63 | remove_extent<T>::type* type;
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| 64 | };
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| 65 | };
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| 66 |
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| 67 | template<>
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| 68 | struct range_iterator_<char_array_>
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| 69 | {
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| 70 | template< typename T >
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| 71 | struct pts
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| 72 | {
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| 73 | typedef BOOST_RANGE_DEDUCED_TYPENAME
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| 74 | remove_extent<T>::type* type;
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| 75 | };
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| 76 | };
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| 77 |
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| 78 | template<>
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| 79 | struct range_iterator_<char_ptr_>
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| 80 | {
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| 81 | template< typename S >
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| 82 | struct pts
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| 83 | {
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| 84 | typedef char* type;
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| 85 | };
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| 86 | };
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| 87 |
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| 88 | template<>
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| 89 | struct range_iterator_<const_char_ptr_>
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| 90 | {
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| 91 | template< typename S >
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| 92 | struct pts
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| 93 | {
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| 94 | typedef const char* type;
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| 95 | };
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| 96 | };
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| 97 |
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| 98 | template<>
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| 99 | struct range_iterator_<wchar_t_ptr_>
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| 100 | {
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| 101 | template< typename S >
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| 102 | struct pts
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| 103 | {
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| 104 | typedef wchar_t* type;
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| 105 | };
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| 106 | };
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| 107 |
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| 108 | template<>
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| 109 | struct range_iterator_<const_wchar_t_ptr_>
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| 110 | {
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| 111 | template< typename S >
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| 112 | struct pts
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| 113 | {
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| 114 | typedef const wchar_t* type;
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| 115 | };
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| 116 | };
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| 117 | }
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| 118 |
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| 119 | template< typename C >
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| 120 | class range_iterator
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| 121 | {
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| 122 | typedef BOOST_RANGE_DEDUCED_TYPENAME range_detail::range<C>::type c_type;
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| 123 | public:
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| 124 | typedef typename range_detail::range_iterator_<c_type>::BOOST_NESTED_TEMPLATE pts<C>::type type;
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| 125 | };
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| 126 | }
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| 127 |
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| 128 | #endif
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