1 files changed, 27 insertions, 0 deletions
diff --git a/week07/Exercise6.h b/week07/Exercise6.h
new file mode 100644
index 0000000..ab5df9e
--- /dev/null
+++ b/week07/Exercise6.h
@@ -0,0 +1,27 @@
+#include <iostream>
+
+class Matrix {
+	int values[4];
+
+	void addBy(int amount);
+
+public:
+	Matrix(int a, int b, int c, int d);
+
+	Matrix& operator++();
+	Matrix operator++(int);
+	Matrix& operator--();
+	Matrix operator--(int);
+
+	Matrix& operator+=(const Matrix& rhs);
+	Matrix& operator-=(const Matrix& rhs);
+	Matrix& operator*=(const Matrix& rhs);
+
+	friend Matrix operator+(const Matrix& lhs, const Matrix& rhs);
+	friend Matrix operator-(const Matrix& lhs, const Matrix& rhs);
+	friend Matrix operator*(const Matrix& lhs, const Matrix& rhs);
+
+	friend std::ostream& operator<<(std::ostream& lhs, const Matrix& rhs);
+	friend std::istream& operator>>(std::istream& lhs, Matrix& rhs);
+};
+