[857] | 1 | // Boost.Range library
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| 2 | //
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| 3 | // Copyright Jonathan Turkanis 2005. 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 |
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| 12 | #ifndef BOOST_RANGE_DETAIL_REMOVE_BOUNDS_HPP
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| 13 | #define BOOST_RANGE_DETAIL_REMOVE_BOUNDS_HPP
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| 14 |
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| 15 | #include <boost/config.hpp> // MSVC, NO_INTRINSIC_WCHAR_T, put size_t in std.
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| 16 | #include <cstddef>
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| 17 | #include <boost/mpl/eval_if.hpp>
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| 18 | #include <boost/mpl/identity.hpp>
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| 19 | #include <boost/type_traits/is_same.hpp>
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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 |
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| 26 | template< typename Case1 = mpl::true_,
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| 27 | typename Type1 = mpl::void_,
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| 28 | typename Case2 = mpl::true_,
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| 29 | typename Type2 = mpl::void_,
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| 30 | typename Case3 = mpl::true_,
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| 31 | typename Type3 = mpl::void_,
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| 32 | typename Case4 = mpl::true_,
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| 33 | typename Type4 = mpl::void_,
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| 34 | typename Case5 = mpl::true_,
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| 35 | typename Type5 = mpl::void_,
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| 36 | typename Case6 = mpl::true_,
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| 37 | typename Type6 = mpl::void_,
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| 38 | typename Case7 = mpl::true_,
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| 39 | typename Type7 = mpl::void_,
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| 40 | typename Case8 = mpl::true_,
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| 41 | typename Type8 = mpl::void_,
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| 42 | typename Case9 = mpl::true_,
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| 43 | typename Type9 = mpl::void_,
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| 44 | typename Case10 = mpl::true_,
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| 45 | typename Type10 = mpl::void_,
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| 46 | typename Case11 = mpl::true_,
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| 47 | typename Type11 = mpl::void_,
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| 48 | typename Case12 = mpl::true_,
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| 49 | typename Type12 = mpl::void_,
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| 50 | typename Case13 = mpl::true_,
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| 51 | typename Type13 = mpl::void_,
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| 52 | typename Case14 = mpl::true_,
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| 53 | typename Type14 = mpl::void_,
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| 54 | typename Case15 = mpl::true_,
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| 55 | typename Type15 = mpl::void_,
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| 56 | typename Case16 = mpl::true_,
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| 57 | typename Type16 = mpl::void_,
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| 58 | typename Case17 = mpl::true_,
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| 59 | typename Type17 = mpl::void_,
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| 60 | typename Case18 = mpl::true_,
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| 61 | typename Type18 = mpl::void_,
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| 62 | typename Case19 = mpl::true_,
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| 63 | typename Type19 = mpl::void_,
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| 64 | typename Case20 = mpl::true_,
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| 65 | typename Type20 = mpl::void_>
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| 66 | struct select {
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| 67 | typedef typename
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| 68 | mpl::eval_if<
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| 69 | Case1, mpl::identity<Type1>, mpl::eval_if<
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| 70 | Case2, mpl::identity<Type2>, mpl::eval_if<
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| 71 | Case3, mpl::identity<Type3>, mpl::eval_if<
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| 72 | Case4, mpl::identity<Type4>, mpl::eval_if<
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| 73 | Case5, mpl::identity<Type5>, mpl::eval_if<
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| 74 | Case6, mpl::identity<Type6>, mpl::eval_if<
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| 75 | Case7, mpl::identity<Type7>, mpl::eval_if<
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| 76 | Case8, mpl::identity<Type8>, mpl::eval_if<
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| 77 | Case9, mpl::identity<Type9>, mpl::if_<
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| 78 | Case10, Type10, mpl::void_ > > > > > > > > >
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| 79 | >::type result1;
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| 80 | typedef typename
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| 81 | mpl::eval_if<
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| 82 | Case11, mpl::identity<Type11>, mpl::eval_if<
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| 83 | Case12, mpl::identity<Type12>, mpl::eval_if<
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| 84 | Case13, mpl::identity<Type13>, mpl::eval_if<
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| 85 | Case14, mpl::identity<Type14>, mpl::eval_if<
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| 86 | Case15, mpl::identity<Type15>, mpl::eval_if<
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| 87 | Case16, mpl::identity<Type16>, mpl::eval_if<
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| 88 | Case17, mpl::identity<Type17>, mpl::eval_if<
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| 89 | Case18, mpl::identity<Type18>, mpl::eval_if<
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| 90 | Case19, mpl::identity<Type19>, mpl::if_<
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| 91 | Case20, Type20, mpl::void_ > > > > > > > > >
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| 92 | > result2;
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| 93 | typedef typename
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| 94 | mpl::eval_if<
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| 95 | is_same<result1, mpl::void_>,
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| 96 | result2,
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| 97 | mpl::identity<result1>
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| 98 | >::type type;
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| 99 | };
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| 100 |
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| 101 | template<typename T>
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| 102 | struct remove_extent {
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| 103 | static T* ar;
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| 104 | BOOST_STATIC_CONSTANT(std::size_t, size = sizeof(*ar) / sizeof((*ar)[0]));
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| 105 |
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| 106 | typedef typename
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| 107 | select<
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| 108 | is_same<T, bool[size]>, bool,
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| 109 | is_same<T, char[size]>, char,
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| 110 | is_same<T, signed char[size]>, signed char,
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| 111 | is_same<T, unsigned char[size]>, unsigned char,
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| 112 | #ifndef BOOST_NO_INTRINSIC_WCHAR_T
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| 113 | is_same<T, wchar_t[size]>, wchar_t,
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| 114 | #endif
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| 115 | is_same<T, short[size]>, short,
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| 116 | is_same<T, unsigned short[size]>, unsigned short,
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| 117 | is_same<T, int[size]>, int,
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| 118 | is_same<T, unsigned int[size]>, unsigned int,
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| 119 | is_same<T, long[size]>, long,
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| 120 | is_same<T, unsigned long[size]>, unsigned long,
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| 121 | is_same<T, float[size]>, float,
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| 122 | is_same<T, double[size]>, double,
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| 123 | is_same<T, long double[size]>, long double
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| 124 | >::type result1;
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| 125 | typedef typename
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| 126 | select<
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| 127 | is_same<T, const bool[size]>, const bool,
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| 128 | is_same<T, const char[size]>, const char,
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| 129 | is_same<T, const signed char[size]>, const signed char,
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| 130 | is_same<T, const unsigned char[size]>, const unsigned char,
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| 131 | #ifndef BOOST_NO_INTRINSIC_WCHAR_T
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| 132 | is_same<T, const wchar_t[size]>, const wchar_t,
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| 133 | #endif
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| 134 | is_same<T, const short[size]>, const short,
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| 135 | is_same<T, const unsigned short[size]>, const unsigned short,
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| 136 | is_same<T, const int[size]>, const int,
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| 137 | is_same<T, const unsigned int[size]>, const unsigned int,
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| 138 | is_same<T, const long[size]>, const long,
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| 139 | is_same<T, const unsigned long[size]>, const unsigned long,
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| 140 | is_same<T, const float[size]>, const float,
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| 141 | is_same<T, const double[size]>, const double,
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| 142 | is_same<T, const long double[size]>, const long double
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| 143 | > result2;
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| 144 | typedef typename
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| 145 | mpl::eval_if<
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| 146 | is_same<result1, mpl::void_>,
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| 147 | result2,
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| 148 | mpl::identity<result1>
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| 149 | >::type type;
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| 150 | };
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| 151 |
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| 152 | } // namespace 'range_detail'
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| 153 |
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| 154 | } // namespace 'boost'
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| 155 |
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| 156 |
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| 157 | #endif
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