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41 results

DynamicModel.cc

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  • DataTree.cc 17.75 KiB
    /*
     * Copyright (C) 2003-2016 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/>.
     */
    
    #include <cstdlib>
    #include <cassert>
    #include <iostream>
    
    #include "DataTree.hh"
    
    DataTree::DataTree(SymbolTable &symbol_table_arg,
                       NumericalConstants &num_constants_arg,
                       ExternalFunctionsTable &external_functions_table_arg) :
      symbol_table(symbol_table_arg),
      num_constants(num_constants_arg),
      external_functions_table(external_functions_table_arg),
      node_counter(0)
    {
      Zero = AddNonNegativeConstant("0");
      One = AddNonNegativeConstant("1");
      Two = AddNonNegativeConstant("2");
    
      MinusOne = AddUMinus(One);
    
      NaN = AddNonNegativeConstant("NaN");
      Infinity = AddNonNegativeConstant("Inf");
      MinusInfinity = AddUMinus(Infinity);
    
      Pi = AddNonNegativeConstant("3.141592653589793");
    }
    
    DataTree::~DataTree()
    {
      for (node_list_t::iterator it = node_list.begin(); it != node_list.end(); it++)
        delete *it;
    }
    
    expr_t
    DataTree::AddNonNegativeConstant(const string &value)
    {
      int id = num_constants.AddNonNegativeConstant(value);
    
      num_const_node_map_t::iterator it = num_const_node_map.find(id);
      if (it != num_const_node_map.end())
        return it->second;
      else
        return new NumConstNode(*this, id);
    }
    
    VariableNode *
    DataTree::AddVariableInternal(int symb_id, int lag)
    {
      variable_node_map_t::iterator it = variable_node_map.find(make_pair(symb_id, lag));
      if (it != variable_node_map.end())
        return it->second;