61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
/*
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* Copyright © 2003-2022 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 <https://www.gnu.org/licenses/>.
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*/
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#include <cassert>
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#include <cmath>
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#include <cstdlib>
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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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if (auto iter = numConstantsIndex.find(iConst); iter != numConstantsIndex.end())
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return iter->second;
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auto id = static_cast<int>(mNumericalConstants.size());
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mNumericalConstants.push_back(iConst);
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numConstantsIndex[iConst] = id;
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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. As a consequence, we
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cannot use std::stod() here, since it does not allow distinguishing
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between underflow and overflow. */
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double val = strtod(iConst.c_str(), nullptr);
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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 < static_cast<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 < static_cast<int>(double_vals.size()));
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return double_vals[ID];
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}
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