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Peter Bao
Peter Bao

Posted on • Updated on

Matrix class implementation

The concept of matrix and multidimensional array had always been an intriguing topic for me when I was in programming classes. Since computer memory isn’t organized in tabular form, there should be a way to represent it. Today, I am going to show you how to implement a matrix class with a component of an array. It will simply has some basic operations of matrix such as addition, subtraction, and multiplication.

class Matrix
{
private:
    Array *A;
    int rows = 0, cols = 0;

    void deepcopy(const Matrix &other);

public:
    Matrix();
    Matrix(int x, int y);
    void input();
    void output();

    void insert(int, int, int);
    int findCelebrity();

    // ~Matrix();

    Matrix(const Matrix &other);
    Matrix &operator=(const Matrix &other);
    void create_identity(int);
    void create_celeb_test(int);

    // Matrix &operator+(const Matrix &other);
    Matrix &operator-(const Matrix &other);

    int view_rows();
    int view_cols();
    int getElement(int, int);
    void setElement(int, int, int);
    bool knows(int, int);

    friend istream &operator>>(istream &in, Matrix &a);
    friend ostream &operator<<(ostream &out, Matrix a);
};
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