base class virtual destructor usage explanation ..

Author: dimkatsi91

polymorphism/virtual_destructor_une.cpp

@@ -0,0 +1,31 @@
+/*
+ * Virtual Destructors: Destructors of base classes should be virtual 
+ * If base class (Shape)'s DTOr is not virtual, then destructor of the base class is only called 
+*/
+
+#include <iostream>
+using namespace std;
+
+class Shape {
+public:
+    virtual ~Shape() {
+        cout << "Shape class DTOr ..\n";
+    }
+};
+
+class Circle : public Shape {
+public:
+    ~Circle() {
+        cout << "Circle class DTOr ..\n";
+    }
+};
+
+
+
+int main() {
+
+    Shape* circle = new Circle();
+    delete circle;
+
+    return 0;
+}