72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
/*
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* Copyright © 2004-2011 Ondra Kamenik
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* Copyright © 2019 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 "MMMatrix.hh"
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#include <fstream>
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#include <iomanip>
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MMMatrixIn::MMMatrixIn(const std::string &fname)
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{
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std::ifstream fd{fname};
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if (fd.fail())
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throw MMException("Cannot open file "+fname+" for reading\n");
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// jump over initial comments
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while (fd.peek() == '%')
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fd.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
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// read in number of rows and cols
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fd >> rows >> cols;
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if (fd.fail())
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throw MMException("Couldn't parse rows and cols\n");
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// read in data
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int len = rows*cols;
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data.resize(len);
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int i = 0;
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while (!fd.eof() && i < len)
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{
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fd >> data[i];
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if (fd.fail())
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throw MMException("Couldn't parse float number\n");
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i++;
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}
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if (i < len)
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throw MMException("Couldn't read all " + std::to_string(len) + " elements, read "
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+ std::to_string(i) + " so far\n");
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fd.close();
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}
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void
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MMMatrixOut::write(const std::string &fname, const GeneralMatrix &m)
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{
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std::ofstream fd{fname, std::ios::out | std::ios::trunc};
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if (fd.fail())
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throw MMException("Cannot open file "+fname+" for writing\n");
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fd << "%%%%MatrixMarket matrix array real general" << std::endl
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<< m.nrows() << ' ' << m.ncols() << std::endl
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<< std::setprecision(35);
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for (int i = 0; i < m.ncols(); i++)
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for (int j = 0; j < m.nrows(); j++)
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fd << std::setw(40) << m.get(i, j);
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fd.close();
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}
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