1 |
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2 | // Copyright Aleksey Gurtovoy 2000-2004
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3 | //
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4 | // Distributed under the Boost Software License, Version 1.0.
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5 | // (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 |
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9 | // Preprocessed version of "boost/mpl/aux_/reverse_fold_impl.hpp" header
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10 | // -- DO NOT modify by hand!
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11 |
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12 | namespace boost { namespace mpl { namespace aux {
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13 |
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14 | /// forward declaration
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15 |
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16 | template<
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17 | long N
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18 | , typename First
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19 | , typename Last
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20 | , typename State
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21 | , typename BackwardOp
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22 | , typename ForwardOp
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23 | >
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24 | struct reverse_fold_impl;
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25 |
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26 | template< long N >
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27 | struct reverse_fold_chunk;
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28 |
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29 | template<> struct reverse_fold_chunk<0>
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30 | {
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31 | template<
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32 | typename First
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33 | , typename Last
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34 | , typename State
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35 | , typename BackwardOp
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36 | , typename ForwardOp
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37 | >
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38 | struct result_
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39 | {
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40 | typedef First iter0;
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41 | typedef State fwd_state0;
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42 | typedef fwd_state0 bkwd_state0;
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43 | typedef bkwd_state0 state;
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44 | typedef iter0 iterator;
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45 | };
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46 | };
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47 |
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48 | template<> struct reverse_fold_chunk<1>
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49 | {
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50 | template<
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51 | typename First
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52 | , typename Last
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53 | , typename State
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54 | , typename BackwardOp
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55 | , typename ForwardOp
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56 | >
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57 | struct result_
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58 | {
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59 | typedef First iter0;
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60 | typedef State fwd_state0;
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61 | typedef typename apply2< ForwardOp, fwd_state0, typename deref<iter0>::type >::type fwd_state1;
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62 | typedef typename mpl::next<iter0>::type iter1;
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63 |
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64 |
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65 | typedef fwd_state1 bkwd_state1;
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66 | typedef typename apply2< BackwardOp, bkwd_state1, typename deref<iter0>::type >::type bkwd_state0;
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67 | typedef bkwd_state0 state;
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68 | typedef iter1 iterator;
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69 | };
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70 | };
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71 |
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72 | template<> struct reverse_fold_chunk<2>
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73 | {
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74 | template<
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75 | typename First
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76 | , typename Last
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77 | , typename State
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78 | , typename BackwardOp
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79 | , typename ForwardOp
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80 | >
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81 | struct result_
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82 | {
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83 | typedef First iter0;
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84 | typedef State fwd_state0;
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85 | typedef typename apply2< ForwardOp, fwd_state0, typename deref<iter0>::type >::type fwd_state1;
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86 | typedef typename mpl::next<iter0>::type iter1;
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87 | typedef typename apply2< ForwardOp, fwd_state1, typename deref<iter1>::type >::type fwd_state2;
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88 | typedef typename mpl::next<iter1>::type iter2;
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89 |
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90 |
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91 | typedef fwd_state2 bkwd_state2;
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92 | typedef typename apply2< BackwardOp, bkwd_state2, typename deref<iter1>::type >::type bkwd_state1;
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93 | typedef typename apply2< BackwardOp, bkwd_state1, typename deref<iter0>::type >::type bkwd_state0;
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94 |
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95 |
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96 | typedef bkwd_state0 state;
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97 | typedef iter2 iterator;
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98 | };
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99 | };
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100 |
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101 | template<> struct reverse_fold_chunk<3>
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102 | {
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103 | template<
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104 | typename First
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105 | , typename Last
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106 | , typename State
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107 | , typename BackwardOp
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108 | , typename ForwardOp
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109 | >
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110 | struct result_
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111 | {
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112 | typedef First iter0;
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113 | typedef State fwd_state0;
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114 | typedef typename apply2< ForwardOp, fwd_state0, typename deref<iter0>::type >::type fwd_state1;
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115 | typedef typename mpl::next<iter0>::type iter1;
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116 | typedef typename apply2< ForwardOp, fwd_state1, typename deref<iter1>::type >::type fwd_state2;
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117 | typedef typename mpl::next<iter1>::type iter2;
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118 | typedef typename apply2< ForwardOp, fwd_state2, typename deref<iter2>::type >::type fwd_state3;
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119 | typedef typename mpl::next<iter2>::type iter3;
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120 |
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121 |
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122 | typedef fwd_state3 bkwd_state3;
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123 | typedef typename apply2< BackwardOp, bkwd_state3, typename deref<iter2>::type >::type bkwd_state2;
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124 | typedef typename apply2< BackwardOp, bkwd_state2, typename deref<iter1>::type >::type bkwd_state1;
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125 | typedef typename apply2< BackwardOp, bkwd_state1, typename deref<iter0>::type >::type bkwd_state0;
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126 |
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127 |
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128 | typedef bkwd_state0 state;
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129 | typedef iter3 iterator;
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130 | };
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131 | };
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132 |
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133 | template<> struct reverse_fold_chunk<4>
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134 | {
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135 | template<
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136 | typename First
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137 | , typename Last
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138 | , typename State
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139 | , typename BackwardOp
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140 | , typename ForwardOp
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141 | >
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142 | struct result_
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143 | {
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144 | typedef First iter0;
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145 | typedef State fwd_state0;
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146 | typedef typename apply2< ForwardOp, fwd_state0, typename deref<iter0>::type >::type fwd_state1;
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147 | typedef typename mpl::next<iter0>::type iter1;
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148 | typedef typename apply2< ForwardOp, fwd_state1, typename deref<iter1>::type >::type fwd_state2;
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149 | typedef typename mpl::next<iter1>::type iter2;
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150 | typedef typename apply2< ForwardOp, fwd_state2, typename deref<iter2>::type >::type fwd_state3;
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151 | typedef typename mpl::next<iter2>::type iter3;
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152 | typedef typename apply2< ForwardOp, fwd_state3, typename deref<iter3>::type >::type fwd_state4;
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153 | typedef typename mpl::next<iter3>::type iter4;
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154 |
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155 |
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156 | typedef fwd_state4 bkwd_state4;
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157 | typedef typename apply2< BackwardOp, bkwd_state4, typename deref<iter3>::type >::type bkwd_state3;
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158 | typedef typename apply2< BackwardOp, bkwd_state3, typename deref<iter2>::type >::type bkwd_state2;
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159 | typedef typename apply2< BackwardOp, bkwd_state2, typename deref<iter1>::type >::type bkwd_state1;
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160 | typedef typename apply2< BackwardOp, bkwd_state1, typename deref<iter0>::type >::type bkwd_state0;
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161 |
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162 |
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163 | typedef bkwd_state0 state;
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164 | typedef iter4 iterator;
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165 | };
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166 | };
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167 |
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168 | template< long N >
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169 | struct reverse_fold_chunk
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170 | {
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171 | template<
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172 | typename First
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173 | , typename Last
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174 | , typename State
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175 | , typename BackwardOp
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176 | , typename ForwardOp
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177 | >
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178 | struct result_
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179 | {
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180 | typedef First iter0;
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181 | typedef State fwd_state0;
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182 | typedef typename apply2< ForwardOp, fwd_state0, typename deref<iter0>::type >::type fwd_state1;
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183 | typedef typename mpl::next<iter0>::type iter1;
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184 | typedef typename apply2< ForwardOp, fwd_state1, typename deref<iter1>::type >::type fwd_state2;
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185 | typedef typename mpl::next<iter1>::type iter2;
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186 | typedef typename apply2< ForwardOp, fwd_state2, typename deref<iter2>::type >::type fwd_state3;
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187 | typedef typename mpl::next<iter2>::type iter3;
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188 | typedef typename apply2< ForwardOp, fwd_state3, typename deref<iter3>::type >::type fwd_state4;
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189 | typedef typename mpl::next<iter3>::type iter4;
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190 |
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191 |
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192 | typedef reverse_fold_impl<
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193 | ( (N - 4) < 0 ? 0 : N - 4 )
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194 | , iter4
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195 | , Last
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196 | , fwd_state4
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197 | , BackwardOp
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198 | , ForwardOp
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199 | > nested_chunk;
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200 |
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201 | typedef typename nested_chunk::state bkwd_state4;
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202 | typedef typename apply2< BackwardOp, bkwd_state4, typename deref<iter3>::type >::type bkwd_state3;
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203 | typedef typename apply2< BackwardOp, bkwd_state3, typename deref<iter2>::type >::type bkwd_state2;
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204 | typedef typename apply2< BackwardOp, bkwd_state2, typename deref<iter1>::type >::type bkwd_state1;
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205 | typedef typename apply2< BackwardOp, bkwd_state1, typename deref<iter0>::type >::type bkwd_state0;
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206 |
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207 |
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208 | typedef bkwd_state0 state;
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209 | typedef typename nested_chunk::iterator iterator;
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210 | };
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211 | };
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212 |
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213 | template<
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214 | typename First
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215 | , typename Last
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216 | , typename State
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217 | , typename BackwardOp
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218 | , typename ForwardOp
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219 | >
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220 | struct reverse_fold_step;
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221 |
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222 | template<
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223 | typename Last
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224 | , typename State
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225 | >
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226 | struct reverse_fold_null_step
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227 | {
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228 | typedef Last iterator;
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229 | typedef State state;
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230 | };
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231 |
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232 | template<>
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233 | struct reverse_fold_chunk< -1 >
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234 | {
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235 | template<
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236 | typename First
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237 | , typename Last
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238 | , typename State
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239 | , typename BackwardOp
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240 | , typename ForwardOp
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241 | >
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242 | struct result_
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243 | {
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244 | typedef typename if_<
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245 | typename is_same< First,Last >::type
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246 | , reverse_fold_null_step< Last,State >
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247 | , reverse_fold_step< First,Last,State,BackwardOp,ForwardOp >
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248 | >::type res_;
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249 |
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250 | typedef typename res_::state state;
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251 | typedef typename res_::iterator iterator;
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252 | };
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253 | };
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254 |
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255 | template<
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256 | typename First
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257 | , typename Last
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258 | , typename State
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259 | , typename BackwardOp
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260 | , typename ForwardOp
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261 | >
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262 | struct reverse_fold_step
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263 | {
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264 | typedef reverse_fold_chunk< -1 >::template result_<
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265 | typename mpl::next<First>::type
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266 | , Last
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267 | , typename apply2<ForwardOp,State, typename deref<First>::type>::type
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268 | , BackwardOp
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269 | , ForwardOp
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270 | > nested_step;
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271 |
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272 | typedef typename apply2<
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273 | BackwardOp
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274 | , typename nested_step::state
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275 | , typename deref<First>::type
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276 | >::type state;
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277 |
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278 | typedef typename nested_step::iterator iterator;
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279 | };
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280 |
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281 | template<
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282 | long N
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283 | , typename First
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284 | , typename Last
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285 | , typename State
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286 | , typename BackwardOp
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287 | , typename ForwardOp
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288 | >
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289 | struct reverse_fold_impl
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290 | : reverse_fold_chunk<N>
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291 | ::template result_< First,Last,State,BackwardOp,ForwardOp >
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292 | {
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293 | };
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294 |
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295 | }}}
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