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Yash Desai
Yash Desai

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++ Operator Overloading for a Matrix using Friend function in C++

#cpp #overloading #operator #friend

Define a class named "Matrix" 

#include <iostream> using namespace std; class Matrix { private: int numbers[3][3]; public: void setNumbers(int n[][3]); void getNumbers(); friend Matrix operator++(Matrix); };
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Implement void setNumbers(int n[][3]) 

void Matrix::setNumbers(int n[][3]) { for (int i = 0; i < 3; i++) { for (int j = 0; j < 3; j++) { numbers[i][j] = n[i][j]; } } }
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Implement void getNumbers() 

void Matrix::getNumbers() { for (int i = 0; i < 3; i++) { for (int j = 0; j < 3; j++) { cout << numbers[i][j] << "\t"; } cout << endl; } cout << endl; }
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Implement Matrix operator++(Matrix n) 

Matrix operator++(Matrix n) { for (int i = 0; i < 3; i++) { for (int j = 0; j < 3; j++) { n.numbers[i][j] = ++(n.numbers[i][j]); } } return n; }
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Implement int main() 

int main() { Matrix matrix; int numbers[3][3] = { {1, 2, 3}, {4, 5, 6}, {7, 8, 9}, }; matrix.setNumbers(numbers); matrix.getNumbers(); matrix = ++matrix; matrix.getNumbers(); return 0; }
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dynamicsquid profile image
DynamicSquid •

Couldn't you do:

n.numbers[i][j] = ++(n.numbers[i][j]); ++(n.numbers[i][j]);
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