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_/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 | int 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 ForwardOp
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22 | >
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23 | struct fold_impl;
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24 |
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25 | template< int N >
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26 | struct fold_chunk;
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27 |
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28 | template<> struct fold_chunk<0>
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29 | {
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30 | template<
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31 | typename First
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32 | , typename Last
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33 | , typename State
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34 | , typename ForwardOp
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35 | >
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36 | struct result_
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37 | {
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38 | typedef First iter0;
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39 | typedef State state0;
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40 | typedef state0 state;
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41 | typedef iter0 iterator;
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42 | };
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43 |
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44 | /// ETI workaround
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45 | template<> struct result_< int,int,int,int >
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46 | {
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47 | typedef int state;
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48 | typedef int iterator;
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49 | };
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50 |
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51 | };
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52 |
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53 | template<> struct fold_chunk<1>
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54 | {
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55 | template<
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56 | typename First
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57 | , typename Last
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58 | , typename State
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59 | , typename ForwardOp
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60 | >
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61 | struct result_
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62 | {
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63 | typedef First iter0;
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64 | typedef State state0;
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65 | typedef typename apply2< ForwardOp, state0, typename deref<iter0>::type >::type state1;
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66 | typedef typename mpl::next<iter0>::type iter1;
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67 |
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68 |
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69 | typedef state1 state;
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70 | typedef iter1 iterator;
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71 | };
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72 |
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73 | /// ETI workaround
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74 | template<> struct result_< int,int,int,int >
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75 | {
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76 | typedef int state;
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77 | typedef int iterator;
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78 | };
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79 |
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80 | };
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81 |
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82 | template<> struct fold_chunk<2>
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83 | {
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84 | template<
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85 | typename First
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86 | , typename Last
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87 | , typename State
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88 | , typename ForwardOp
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89 | >
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90 | struct result_
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91 | {
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92 | typedef First iter0;
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93 | typedef State state0;
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94 | typedef typename apply2< ForwardOp, state0, typename deref<iter0>::type >::type state1;
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95 | typedef typename mpl::next<iter0>::type iter1;
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96 | typedef typename apply2< ForwardOp, state1, typename deref<iter1>::type >::type state2;
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97 | typedef typename mpl::next<iter1>::type iter2;
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98 |
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99 |
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100 | typedef state2 state;
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101 | typedef iter2 iterator;
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102 | };
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103 |
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104 | /// ETI workaround
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105 | template<> struct result_< int,int,int,int >
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106 | {
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107 | typedef int state;
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108 | typedef int iterator;
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109 | };
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110 |
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111 | };
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112 |
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113 | template<> struct fold_chunk<3>
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114 | {
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115 | template<
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116 | typename First
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117 | , typename Last
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118 | , typename State
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119 | , typename ForwardOp
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120 | >
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121 | struct result_
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122 | {
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123 | typedef First iter0;
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124 | typedef State state0;
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125 | typedef typename apply2< ForwardOp, state0, typename deref<iter0>::type >::type state1;
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126 | typedef typename mpl::next<iter0>::type iter1;
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127 | typedef typename apply2< ForwardOp, state1, typename deref<iter1>::type >::type state2;
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128 | typedef typename mpl::next<iter1>::type iter2;
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129 | typedef typename apply2< ForwardOp, state2, typename deref<iter2>::type >::type state3;
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130 | typedef typename mpl::next<iter2>::type iter3;
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131 |
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132 |
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133 | typedef state3 state;
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134 | typedef iter3 iterator;
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135 | };
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136 |
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137 | /// ETI workaround
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138 | template<> struct result_< int,int,int,int >
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139 | {
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140 | typedef int state;
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141 | typedef int iterator;
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142 | };
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143 |
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144 | };
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145 |
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146 | template<> struct fold_chunk<4>
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147 | {
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148 | template<
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149 | typename First
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150 | , typename Last
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151 | , typename State
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152 | , typename ForwardOp
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153 | >
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154 | struct result_
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155 | {
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156 | typedef First iter0;
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157 | typedef State state0;
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158 | typedef typename apply2< ForwardOp, state0, typename deref<iter0>::type >::type state1;
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159 | typedef typename mpl::next<iter0>::type iter1;
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160 | typedef typename apply2< ForwardOp, state1, typename deref<iter1>::type >::type state2;
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161 | typedef typename mpl::next<iter1>::type iter2;
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162 | typedef typename apply2< ForwardOp, state2, typename deref<iter2>::type >::type state3;
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163 | typedef typename mpl::next<iter2>::type iter3;
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164 | typedef typename apply2< ForwardOp, state3, typename deref<iter3>::type >::type state4;
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165 | typedef typename mpl::next<iter3>::type iter4;
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166 |
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167 |
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168 | typedef state4 state;
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169 | typedef iter4 iterator;
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170 | };
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171 |
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172 | /// ETI workaround
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173 | template<> struct result_< int,int,int,int >
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174 | {
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175 | typedef int state;
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176 | typedef int iterator;
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177 | };
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178 |
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179 | };
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180 |
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181 | template< int N >
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182 | struct fold_chunk
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183 | {
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184 | template<
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185 | typename First
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186 | , typename Last
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187 | , typename State
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188 | , typename ForwardOp
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189 | >
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190 | struct result_
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191 | {
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192 | typedef fold_impl<
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193 | 4
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194 | , First
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195 | , Last
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196 | , State
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197 | , ForwardOp
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198 | > chunk_;
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199 |
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200 | typedef fold_impl<
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201 | ( (N - 4) < 0 ? 0 : N - 4 )
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202 | , typename chunk_::iterator
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203 | , Last
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204 | , typename chunk_::state
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205 | , ForwardOp
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206 | > res_;
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207 |
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208 | typedef typename res_::state state;
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209 | typedef typename res_::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 ForwardOp
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218 | >
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219 | struct fold_step;
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220 |
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221 | template<
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222 | typename Last
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223 | , typename State
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224 | >
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225 | struct fold_null_step
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226 | {
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227 | typedef Last iterator;
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228 | typedef State state;
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229 | };
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230 |
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231 | template<>
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232 | struct fold_chunk< -1 >
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233 | {
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234 | template<
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235 | typename First
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236 | , typename Last
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237 | , typename State
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238 | , typename ForwardOp
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239 | >
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240 | struct result_
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241 | {
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242 | typedef typename if_<
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243 | typename is_same< First,Last >::type
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244 | , fold_null_step< Last,State >
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245 | , fold_step< First,Last,State,ForwardOp >
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246 | >::type res_;
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247 |
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248 | typedef typename res_::state state;
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249 | typedef typename res_::iterator iterator;
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250 | };
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251 |
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252 | /// ETI workaround
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253 | template<> struct result_< int,int,int,int >
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254 | {
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255 | typedef int state;
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256 | typedef int iterator;
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257 | };
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258 |
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259 | };
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260 |
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261 | template<
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262 | typename First
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263 | , typename Last
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264 | , typename State
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265 | , typename ForwardOp
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266 | >
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267 | struct fold_step
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268 | {
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269 | typedef fold_chunk< -1 >::template result_<
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270 | typename mpl::next<First>::type
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271 | , Last
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272 | , typename apply2<ForwardOp,State, typename deref<First>::type>::type
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273 | , ForwardOp
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274 | > chunk_;
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275 |
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276 | typedef typename chunk_::state state;
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277 | typedef typename chunk_::iterator iterator;
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278 | };
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279 |
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280 | template<
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281 | int N
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282 | , typename First
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283 | , typename Last
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284 | , typename State
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285 | , typename ForwardOp
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286 | >
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287 | struct fold_impl
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288 | : fold_chunk<N>
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289 | ::template result_< First,Last,State,ForwardOp >
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290 | {
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291 | };
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292 |
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293 | }}}
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