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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #if !defined (octave_tree_walker_h) |
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25 #define octave_tree_walker_h 1 |
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26 |
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27 class tree_argument_list; |
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28 class tree_binary_expression; |
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29 class tree_break_command; |
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30 class tree_colon_expression; |
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31 class tree_continue_command; |
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32 class tree_decl_command; |
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33 class tree_decl_elt; |
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34 class tree_decl_init_list; |
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35 class tree_simple_for_command; |
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36 class tree_complex_for_command; |
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37 class octave_user_function; |
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38 class tree_identifier; |
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39 class tree_if_clause; |
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40 class tree_if_command; |
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41 class tree_if_command_list; |
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42 class tree_switch_case; |
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43 class tree_switch_case_list; |
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44 class tree_switch_command; |
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45 class tree_index_expression; |
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46 class tree_matrix; |
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47 class tree_cell; |
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48 class tree_multi_assignment; |
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49 class tree_no_op_command; |
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50 class tree_constant; |
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51 class tree_fcn_handle; |
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52 class tree_parameter_list; |
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53 class tree_postfix_expression; |
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54 class tree_prefix_expression; |
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55 class tree_return_command; |
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56 class tree_return_list; |
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57 class tree_simple_assignment; |
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58 class tree_statement; |
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59 class tree_statement_list; |
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60 class tree_try_catch_command; |
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61 class tree_unwind_protect_command; |
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62 class tree_while_command; |
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63 class tree_do_until_command; |
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64 |
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65 class |
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66 tree_walker |
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67 { |
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68 public: |
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69 |
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70 virtual void |
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71 visit_argument_list (tree_argument_list&) = 0; |
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72 |
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73 virtual void |
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74 visit_binary_expression (tree_binary_expression&) = 0; |
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75 |
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76 virtual void |
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77 visit_break_command (tree_break_command&) = 0; |
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78 |
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79 virtual void |
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80 visit_colon_expression (tree_colon_expression&) = 0; |
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81 |
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82 virtual void |
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83 visit_continue_command (tree_continue_command&) = 0; |
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84 |
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85 virtual void |
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86 visit_decl_command (tree_decl_command&) = 0; |
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87 |
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88 virtual void |
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89 visit_decl_elt (tree_decl_elt&) = 0; |
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90 |
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91 virtual void |
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92 visit_decl_init_list (tree_decl_init_list&) = 0; |
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93 |
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94 virtual void |
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95 visit_simple_for_command (tree_simple_for_command&) = 0; |
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96 |
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97 virtual void |
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98 visit_complex_for_command (tree_complex_for_command&) = 0; |
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99 |
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100 virtual void |
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101 visit_octave_user_function (octave_user_function&) = 0; |
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102 |
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103 virtual void |
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104 visit_identifier (tree_identifier&) = 0; |
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105 |
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106 virtual void |
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107 visit_if_clause (tree_if_clause&) = 0; |
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108 |
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109 virtual void |
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110 visit_if_command (tree_if_command&) = 0; |
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111 |
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112 virtual void |
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113 visit_if_command_list (tree_if_command_list&) = 0; |
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114 |
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115 virtual void |
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116 visit_switch_case (tree_switch_case&) = 0; |
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117 |
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118 virtual void |
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119 visit_switch_case_list (tree_switch_case_list&) = 0; |
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120 |
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121 virtual void |
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122 visit_switch_command (tree_switch_command&) = 0; |
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123 |
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124 virtual void |
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125 visit_index_expression (tree_index_expression&) = 0; |
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126 |
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127 virtual void |
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128 visit_matrix (tree_matrix&) = 0; |
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129 |
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130 virtual void |
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131 visit_cell (tree_cell&) = 0; |
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132 |
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133 virtual void |
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134 visit_multi_assignment (tree_multi_assignment&) = 0; |
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135 |
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136 virtual void |
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137 visit_no_op_command (tree_no_op_command&) = 0; |
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138 |
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139 virtual void |
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140 visit_constant (tree_constant&) = 0; |
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141 |
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142 virtual void |
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143 visit_fcn_handle (tree_fcn_handle&) = 0; |
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144 |
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145 virtual void |
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146 visit_parameter_list (tree_parameter_list&) = 0; |
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147 |
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148 virtual void |
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149 visit_postfix_expression (tree_postfix_expression&) = 0; |
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150 |
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151 virtual void |
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152 visit_prefix_expression (tree_prefix_expression&) = 0; |
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153 |
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154 virtual void |
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155 visit_return_command (tree_return_command&) = 0; |
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156 |
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157 virtual void |
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158 visit_return_list (tree_return_list&) = 0; |
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159 |
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160 virtual void |
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161 visit_simple_assignment (tree_simple_assignment&) = 0; |
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162 |
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163 virtual void |
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164 visit_statement (tree_statement&) = 0; |
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165 |
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166 virtual void |
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167 visit_statement_list (tree_statement_list&) = 0; |
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168 |
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169 virtual void |
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170 visit_try_catch_command (tree_try_catch_command&) = 0; |
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171 |
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172 virtual void |
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173 visit_unwind_protect_command (tree_unwind_protect_command&) = 0; |
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174 |
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175 virtual void |
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176 visit_while_command (tree_while_command&) = 0; |
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177 |
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178 virtual void |
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179 visit_do_until_command (tree_do_until_command&) = 0; |
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180 |
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181 protected: |
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182 |
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183 tree_walker (void) { } |
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184 |
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185 virtual ~tree_walker (void) { } |
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186 |
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187 private: |
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188 |
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189 // No copying! |
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190 |
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191 tree_walker (const tree_walker&); |
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192 |
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193 tree_walker& operator = (const tree_walker&); |
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194 }; |
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195 |
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196 #endif |
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197 |
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198 /* |
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199 ;;; Local Variables: *** |
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200 ;;; mode: C++ *** |
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201 ;;; End: *** |
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202 */ |
