projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | // Boost.Range library |
| 2 | // | |
| 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) | |
| 7 | // | |
| 8 | // For more information, see http://www.boost.org/libs/range/ | |
| 9 | // | |
| 10 | ||
| 11 | #ifndef BOOST_RANGE_DETAIL_DIFFERENCE_TYPE_HPP | |
| 12 | #define BOOST_RANGE_DETAIL_DIFFERENCE_TYPE_HPP | |
| 13 | ||
| 14 | #include <boost/range/detail/common.hpp> | |
| 15 | #include <boost/iterator/iterator_traits.hpp> | |
| 16 | ||
| 17 | ////////////////////////////////////////////////////////////////////////////// | |
| 18 | // missing partial specialization workaround. | |
| 19 | ////////////////////////////////////////////////////////////////////////////// | |
| 20 | ||
| 21 | namespace boost | |
| 22 | { | |
| 23 | namespace range_detail | |
| 24 | { | |
| 25 | template< typename T > | |
| 26 | struct range_difference_type_; | |
| 27 | ||
| 28 | template<> | |
| 29 | struct range_difference_type_<std_container_> | |
| 30 | { | |
| 31 | template< typename C > | |
| 32 | struct pts | |
| 33 | { | |
| 34 | typedef BOOST_DEDUCED_TYPENAME C::difference_type type; | |
| 35 | }; | |
| 36 | }; | |
| 37 | ||
| 38 | template<> | |
| 39 | struct range_difference_type_<std_pair_> | |
| 40 | { | |
| 41 | template< typename P > | |
| 42 | struct pts | |
| 43 | { | |
| 44 | typedef BOOST_RANGE_DEDUCED_TYPENAME boost::iterator_difference< BOOST_DEDUCED_TYPENAME P::first_type>::type type; | |
| 45 | }; | |
| 46 | }; | |
| 47 | ||
| 48 | template<> | |
| 49 | struct range_difference_type_<array_> | |
| 50 | { | |
| 51 | template< typename A > | |
| 52 | struct pts | |
| 53 | { | |
| 54 | typedef std::ptrdiff_t type; | |
| 55 | }; | |
| 56 | }; | |
| 57 | ||
| 58 | template<> | |
| 59 | struct range_difference_type_<char_array_> | |
| 60 | { | |
| 61 | template< typename A > | |
| 62 | struct pts | |
| 63 | { | |
| 64 | typedef std::ptrdiff_t type; | |
| 65 | }; | |
| 66 | }; | |
| 67 | ||
| 68 | template<> | |
| 69 | struct range_difference_type_<char_ptr_> | |
| 70 | { | |
| 71 | template< typename S > | |
| 72 | struct pts | |
| 73 | { | |
| 74 | typedef std::ptrdiff_t type; | |
| 75 | }; | |
| 76 | }; | |
| 77 | ||
| 78 | template<> | |
| 79 | struct range_difference_type_<const_char_ptr_> | |
| 80 | { | |
| 81 | template< typename S > | |
| 82 | struct pts | |
| 83 | { | |
| 84 | typedef std::ptrdiff_t type; | |
| 85 | }; | |
| 86 | }; | |
| 87 | ||
| 88 | template<> | |
| 89 | struct range_difference_type_<wchar_t_ptr_> | |
| 90 | { | |
| 91 | template< typename S > | |
| 92 | struct pts | |
| 93 | { | |
| 94 | typedef std::ptrdiff_t type; | |
| 95 | }; | |
| 96 | }; | |
| 97 | ||
| 98 | template<> | |
| 99 | struct range_difference_type_<const_wchar_t_ptr_> | |
| 100 | { | |
| 101 | template< typename S > | |
| 102 | struct pts | |
| 103 | { | |
| 104 | typedef std::ptrdiff_t type; | |
| 105 | }; | |
| 106 | }; | |
| 107 | ||
| 108 | } | |
| 109 | ||
| 110 | template< typename C > | |
| 111 | class range_difference | |
| 112 | { | |
| 113 | typedef BOOST_RANGE_DEDUCED_TYPENAME range_detail::range<C>::type c_type; | |
| 114 | public: | |
| 115 | typedef BOOST_RANGE_DEDUCED_TYPENAME range_detail::range_difference_type_<c_type>::BOOST_NESTED_TEMPLATE pts<C>::type type; | |
| 116 | }; | |
| 117 | ||
| 118 | } | |
| 119 | ||
| 120 | #endif | |
| 121 |