118 lines
3.5 KiB
C++
118 lines
3.5 KiB
C++
/*
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* Copyright (C) 2003-2008 Dynare Team
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*
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* This file is part of Dynare.
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*
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* Dynare is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Dynare is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Dynare. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <cstdlib>
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#include "VariableTable.hh"
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VariableTable::VariableTable(const SymbolTable &symbol_table_arg) :
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symbol_table(symbol_table_arg),
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var_endo_nbr(0), var_exo_nbr(0), var_exo_det_nbr(0),
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max_lag(0), max_lead(0),
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max_endo_lag(0), max_endo_lead(0),
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max_exo_lag(0), max_exo_lead(0),
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max_exo_det_lag(0), max_exo_det_lead(0)
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{
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}
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int
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VariableTable::addVariable(SymbolType type, int symb_id, int lag) throw (DynJacobianColsAlreadyComputedException)
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{
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if (dyn_jacobian_cols_table.size() != 0)
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throw DynJacobianColsAlreadyComputedException();
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var_key_type key = make_pair(make_pair(type, lag), symb_id);
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// Testing if variable already exists
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variable_table_type::const_iterator it = variable_table.find(key);
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if (it != variable_table.end())
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return it->second;
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int var_id = size();
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variable_table[key] = var_id;
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inv_variable_table[var_id] = key;
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// Setting maximum and minimum lags
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if (max_lead < lag)
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max_lead = lag;
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else if (-max_lag > lag)
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max_lag = -lag;
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switch(type)
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{
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case eEndogenous:
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var_endo_nbr++;
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if (max_endo_lead < lag)
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max_endo_lead = lag;
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else if (-max_endo_lag > lag)
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max_endo_lag = -lag;
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break;
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case eExogenous:
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var_exo_nbr++;
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if (max_exo_lead < lag)
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max_exo_lead = lag;
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else if (-max_exo_lag > lag)
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max_exo_lag = -lag;
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break;
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case eExogenousDet:
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var_exo_det_nbr++;
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if (max_exo_det_lead < lag)
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max_exo_det_lead = lag;
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else if (-max_exo_det_lag > lag)
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max_exo_det_lag = -lag;
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break;
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default:
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cerr << "VariableTable::addVariable(): forbidden variable type" << endl;
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exit(EXIT_FAILURE);
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}
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return var_id;
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}
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void
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VariableTable::computeDynJacobianCols() throw (DynJacobianColsAlreadyComputedException)
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{
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if (dyn_jacobian_cols_table.size() != 0)
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throw DynJacobianColsAlreadyComputedException();
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dyn_jacobian_cols_table.resize(size());
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variable_table_type::const_iterator it = variable_table.begin();
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// Assign the first columns to endogenous, using the lexicographic order over (lag, symbol_id) implemented in variable_table map
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int sorted_id = 0;
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while(it->first.first.first == eEndogenous && it != variable_table.end())
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{
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dyn_jacobian_cols_table[it->second] = sorted_id++;
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it++;
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}
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// Assign subsequent columns to exogenous and then exogenous deterministic, using an offset + symbol_id
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while(it->first.first.first == eExogenous && it != variable_table.end())
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{
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dyn_jacobian_cols_table[it->second] = var_endo_nbr + it->first.second;
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it++;
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}
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while(it->first.first.first == eExogenousDet && it != variable_table.end())
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{
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dyn_jacobian_cols_table[it->second] = var_endo_nbr + symbol_table.exo_nbr + it->first.second;
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it++;
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}
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}
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