// Gmsh - Copyright (C) 1997-2025 C. Geuzaine, J.-F. Remacle
//
// See the LICENSE.txt file in the Gmsh root directory for license information.
// Please report all issues on https://gitlab.onelab.info/gmsh/gmsh/issues.
#ifndef STENSOR53_H_
#define STENSOR53_H_

class STensor53 {
protected:
  double _val[3][3][3][3][3];

public:
  STensor53(const double val = 0);
  STensor53(const STensor53 &src);
  inline double &operator()(int i, int j, int k, int l, int m)
  {
    return _val[i][j][k][l][m];
  };
  inline double operator()(int i, int j, int k, int l, int m) const
  {
    return _val[i][j][k][l][m];
  };
  STensor53 &operator=(const STensor53 &other)
  {
    for(int i = 0; i < 3; i++)
      for(int j = 0; j < 3; j++)
        for(int k = 0; k < 3; k++)
          for(int l = 0; l < 3; l++)
            for(int m = 0; m < 3; m++)
              _val[i][j][k][l][m] = other._val[i][j][k][l][m];
    return *this;
  };
  STensor53 &operator+=(const STensor53 &other)
  {
    for(int i = 0; i < 3; i++)
      for(int j = 0; j < 3; j++)
        for(int k = 0; k < 3; k++)
          for(int l = 0; l < 3; l++)
            for(int m = 0; m < 3; m++)
              _val[i][j][k][l][m] += other._val[i][j][k][l][m];
    return *this;
  };
  STensor53 &operator-=(const STensor53 &other)
  {
    for(int i = 0; i < 3; i++)
      for(int j = 0; j < 3; j++)
        for(int k = 0; k < 3; k++)
          for(int l = 0; l < 3; l++)
            for(int m = 0; m < 3; m++)
              _val[i][j][k][l][m] -= other._val[i][j][k][l][m];
    return *this;
  };
  STensor53 &operator*=(const double &other)
  {
    for(int i = 0; i < 3; i++)
      for(int j = 0; j < 3; j++)
        for(int k = 0; k < 3; k++)
          for(int l = 0; l < 3; l++)
            for(int m = 0; m < 3; m++) _val[i][j][k][l][m] *= other;
    return *this;
  };
};

#endif // STENSOR53_H_
