64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
/*
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* Copyright (C) 2003-2012 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 <cassert>
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#include <cerrno>
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#include <cmath>
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#include <iostream>
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#include "NumericalConstants.hh"
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int
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NumericalConstants::AddNonNegativeConstant(const string &iConst)
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{
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map<string, int>::const_iterator iter = numConstantsIndex.find(iConst);
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if (iter != numConstantsIndex.end())
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return iter->second;
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int id = (int) mNumericalConstants.size();
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mNumericalConstants.push_back(iConst);
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numConstantsIndex[iConst] = id;
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double val = strtod(iConst.c_str(), NULL);
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/* Note that we allow underflows (will be converted to 0) and overflows (will
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be converted to Inf), as MATLAB and Octave do. */
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assert(val >= 0 || isnan(val)); // Check we have a positive constant or a NaN
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double_vals.push_back(val);
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return id;
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}
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string
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NumericalConstants::get(int ID) const
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{
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assert(ID >= 0 && ID < (int) mNumericalConstants.size());
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return mNumericalConstants[ID];
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}
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double
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NumericalConstants::getDouble(int ID) const
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{
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assert(ID >= 0 && ID < (int) double_vals.size());
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return (double_vals[ID]);
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}
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