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  • DataTree.hh 9.32 KiB
    /*
     * Copyright (C) 2003-2009 Dynare Team
     *
     * This file is part of Dynare.
     *
     * Dynare is free software: you can redistribute it and/or modify
     * it under the terms of the GNU General Public License as published by
     * the Free Software Foundation, either version 3 of the License, or
     * (at your option) any later version.
     *
     * Dynare is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     * GNU General Public License for more details.
     *
     * You should have received a copy of the GNU General Public License
     * along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
     */
    
    #ifndef _DATATREE_HH
    #define _DATATREE_HH
    
    using namespace std;
    
    #include <string>
    #include <map>
    #include <list>
    #include <sstream>
    #include <iomanip>
    
    #include "SymbolTable.hh"
    #include "NumericalConstants.hh"
    #include "ExprNode.hh"
    
    #define CONSTANTS_PRECISION 16
    
    class DataTree
    {
      friend class ExprNode;
      friend class NumConstNode;
      friend class VariableNode;
      friend class UnaryOpNode;
      friend class BinaryOpNode;
      friend class TrinaryOpNode;
      friend class UnknownFunctionNode;
    protected:
      //! A reference to the symbol table
      SymbolTable &symbol_table;
      //! Reference to numerical constants table
      NumericalConstants &num_constants;
    
      typedef map<int, NodeID> num_const_node_map_type;
      num_const_node_map_type num_const_node_map;
      //! Pair (symbol_id, lag) used as key
      typedef map<pair<int, int>, NodeID> variable_node_map_type;
      variable_node_map_type variable_node_map;
      typedef map<pair<NodeID, int>, NodeID> unary_op_node_map_type;
      unary_op_node_map_type unary_op_node_map;
      typedef map<pair<pair<NodeID, NodeID>, int>, NodeID> binary_op_node_map_type;
      binary_op_node_map_type binary_op_node_map;
      typedef map<pair<pair<pair<NodeID, NodeID>,NodeID>, int>, NodeID> trinary_op_node_map_type;
      trinary_op_node_map_type trinary_op_node_map;
    
      //! Stores local variables value (maps symbol ID to corresponding node)
      map<int, NodeID> local_variables_table;
    
      //! Internal implementation of AddVariable(), without the check on the lag
      NodeID AddVariableInternal(const string &name, int lag);
    
      //! Computes a new deriv_id, or returns -1 if the variable is not one w.r. to which to derive