preprocessor/NumericalConstants.cc

67 lines
1.6 KiB
C++

/*
* Copyright (C) 2003-2008 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 <iostream>
#include "NumericalConstants.hh"
NumericalConstants::NumericalConstants()
{
AddConstant("0");
AddConstant("1");
}
int
NumericalConstants::AddConstant(const string &iConst)
{
map<string, int>::iterator iter = numConstantsIndex.find(iConst);
//cout << "iConst=" << iConst << "\n" ;
if (iter != numConstantsIndex.end())
return iter->second;
if (atof(iConst.c_str()) < 0)
{
cerr << "Can't handle a negative constant..!" << endl;
exit(-1);
}
int id = (int) mNumericalConstants.size();
mNumericalConstants.push_back(iConst);
numConstantsIndex[iConst] = id;
return id;
}
string
NumericalConstants::get(int ID) const
{
if (ID < (int) mNumericalConstants.size())
return mNumericalConstants[ID];
else
{
cerr << "Unknown constant" << endl;
exit(-1);
}
}
double
NumericalConstants::getDouble(int iID) const
{
return(atof(get(iID).c_str()));
}