MatrixConstView.h

#ifndef _theplu_yat_utility_matrix_const_view_
#define _theplu_yat_utility_matrix_const_view_

// $Id: MatrixConstView.h 4141 2022-02-01 05:11:36Z peter $

/*
  Copyright (C) 2022 Peter Johansson

  This file is part of the yat library, https://dev.thep.lu.se/yat

  The yat library 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.

  The yat library 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 yat. If not, see <https://www.gnu.org/licenses/>.
*/

#include "config_public.h"

#include "MatrixBase.h"

#include <gsl/gsl_matrix.h>

#include <cstddef> // size_t

namespace theplu {
namespace yat {
namespace utility {

  class MatrixConstView : public MatrixBase
  {
  public:
    MatrixConstView(void);

    MatrixConstView(const MatrixConstView& other);

    explicit MatrixConstView(const MatrixBase& other);

    MatrixConstView(const MatrixBase& other,
                    size_t row_offset, size_t col_offset,
                    size_t rows, size_t columns);

    explicit MatrixConstView(const gsl_matrix* m);

    MatrixConstView(const double* p, size_t rows, size_t cols);

    MatrixConstView(const double* p, size_t rows, size_t cols, size_t tda);

    ~MatrixConstView(void);

    const gsl_matrix* gsl_matrix_p(void) const;
  private:
    gsl_matrix_const_view* view_;
    void copy(const gsl_matrix* other);
    void copy(const gsl_matrix* other, size_t, size_t, size_t, size_t);
  };

}}} // of namespace utility, yat, and theplu

#endif