// Created by C +- // Matrix.cpp : This file contains the 'main' function. Program execution begins and ends there. // #include #include #include #include #include using namespace std; template class Matrix { private: int numRows, numCols; T **elements; public: Matrix (int = 0, int = 0); //Default constructor Matrix (const Matrix &); //Copy constructor ~Matrix (); //Destructor //Utility functions int getRows (void) const; int getCols (void) const; //Input functions const Matrix & input (istream &is = cin); const Matrix & input (ifstream &is); //Output functions void output (ostream &os = cout) const; void output (ofstream &os) const; //Plus operator Matrix operator + (Matrix &m) const; const Matrix & operator += (Matrix &m); Matrix operator + (T d) const; template friend Matrix operator+(T, Matrix &); //Minus operator Matrix operator - (Matrix &m) const; const Matrix & operator -= (Matrix &m); Matrix operator - (T d) const; templatefriend Matrix operator - (T d, Matrix &m); //Multiplication operator Matrix operator * ( const Matrix & m); Matrix operator * (T d) const; // templatefriend Matrix operator * (const T d, const Matrix &m); //Division operator Matrix operator / (const T d); //Stream insertion operator templatefriend istream & operator >> (istream &os, Matrix &); templatefriend ifstream & operator >> (ifstream &os, Matrix &); //Stream Extraction operator templatefriend ostream & operator << (ostream &is, Matrix &); templatefriend ofstream & operator << (ofstream &is, Matrix &); //Assignment operator const Matrix & operator = (const Matrix &m); // NOLINT //Transpose const Matrix & transpose (void); }; template Matrix::Matrix(int row, int cols) { numRows = row; numCols = cols; elements = new T * [numRows]; for (int i = 0; i < numRows; i++) { elements[i] = new T [numCols]; for (int j = 0; j < numCols; j++) elements[i][j] = 0; } } template Matrix::Matrix(const Matrix &m) { numRows = m.numRows; numCols = m.numCols; elements = new T * [numRows]; for (int i = 0; i < numRows; i++) { elements[i] = new T [numCols]; for (int j = 0; j < numCols; j++) elements[i][j] = m.elements[i][j]; } } template Matrix::~Matrix() { delete [] elements; } template int Matrix::getRows(void) const { return numRows; } template int Matrix::getCols(void) const { return numCols; } template const Matrix& Matrix::input(istream& is) { cout << "Input Matrix size: " << numRows << " rows by " << numCols << " columns\n"; for (int i = 0; i> elements[i][j]; } } return *this; // TODO: insert return statement here } template const Matrix& Matrix::input(ifstream& is) { int Rows, Cols; is >> Rows; is >> Cols; if (Rows>0 && Cols>0) { Matrix temp (Rows,Cols); *this = temp; for (int i = 0; i> elements[i][j]; } } } return *this; // TODO: insert return statement here } template void Matrix::output(ostream& os) const { //Print first row with special chracters os.setf(ios::showpoint); os.setf(ios::fixed,ios::floatfield); os << (char) 218; for (int j = 0; j void Matrix::output(ofstream& os) const { os.setf(ios::showpoint); os.setf(ios::fixed,ios::floatfield); os << numRows << " " << numCols << "\n"; for (int i = 0; i Matrix Matrix::operator+(Matrix& m) const { if (numRows == m.numRows && numCols == m.numCols) { Matrix temp(*this); for (int i = 0; i temp (*this); return temp; } template const Matrix& Matrix::operator+=(Matrix& m) { *this = *this + m; return *this; // TODO: insert return statement here } template Matrix Matrix::operator+(T d) const { Matrix temp(*this); for (int i = 0; i Matrix Matrix::operator-(Matrix& m) const { if (numRows == m.numRows && numCols == m.numCols) { Matrix temp(*this); for (int i = 0; i temp (*this); return temp; } template const Matrix& Matrix::operator-=(Matrix& m) { *this = *this - m; return *this; // TODO: insert return statement here } template Matrix Matrix::operator-(T d) const { Matrix temp(*this); for (int i = 0; i Matrix Matrix::operator*(const Matrix& m) { Matrix temp(numRows, m.numCols); if (numCols == m.numRows) { for (int i = 0; i Matrix Matrix::operator*(T d) const { Matrix temp (*this); for (int i = 0; i Matrix Matrix::operator/(const T d) { if (d != 0) { Matrix temp (*this); // ReSharper disable CppUnreachableCode for (int i = 0; i // NOLINT const Matrix&Matrix::operator=(const Matrix& m) { if ( &m != this) { if (numRows != m.numRows || numCols != m.numCols) { delete [] elements; elements = new T *[m.numRows]; for (int i = 0; i const Matrix& Matrix::transpose(void) { if (numRows == numCols) { T temp; for (int i = 0; i temp(numCols, numRows); for (int i = 0; i Matrix operator+(T d, Matrix &m) { Matrix temp(m); for (int i = 0; i Matrix operator-(T d, Matrix& m) { Matrix temp(m); for (int i = 0; i Matrix operator*(const T d, const Matrix &m) { Matrix temp (m); for (int i = 0; i istream& operator>>(istream &is, Matrix &m) { m.input(is); return is; // TODO: insert return statement here } template ifstream& operator>>(ifstream &is, Matrix &m) { m.input(is); return is; // TODO: insert return statement here } template ostream& operator<<(ostream &os, Matrix &m) { m.output(); return os; // TODO: insert return statement here } template ofstream& operator<<(ofstream &os, Matrix &m) { m.output(os); return os; // TODO: insert return statement here } int main() // NOLINT(bugprone-exception-escape) { Matrix a(3,3),b(2,7); cin >> a; cout << a; b = a; cout << b; b.transpose(); cout << b; Matrix c(3,3),d; cin >> c; d = a + c; cout << d; c = c*2; /* cout << c; */ return 0; } // Run program: Ctrl + F5 or Debug > Start Without Debugging menu // Debug program: F5 or Debug > Start Debugging menu // Tips for Getting Started: // 1. Use the Solution Explorer window to add/manage files // 2. Use the Team Explorer window to connect to source control // 3. Use the Output window to see build output and other messages // 4. Use the Error List window to view errors // 5. Go to Project > Add New Item to create new code files, or Project > Add Existing Item to add existing code files to the project // 6. In the future, to open this project again, go to File > Open > Project and select the .sln file

For C +- : Matrix