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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