Interfaces just for reference in this repo ...

Author: dimkatsi91

patterns/interfaces_une.cpp

@@ -0,0 +1,56 @@
+#include <iostream>
+#include <string>
+
+using namespace std;
+
+// Interface
+class Decorator {
+public:
+    Decorator(double angle) : angle(angle) {}
+    virtual ~Decorator() {}
+    virtual void whatever() = 0;
+protected:
+    double angle;
+};
+
+// Another Interface 
+template<class T>
+class Complex {
+public:
+    Complex(T *real, T *image)
+        : real(real), image(image) {}
+    ~Complex() { delete real, image; }
+    virtual void echoComplex() = 0;
+protected:
+    T *real, *image;
+};
+
+// IntComplex Implements both interfaces
+//
+class IntComplex : public Complex<int>, Decorator {
+public:
+    IntComplex(int *real, int *image, int angle)
+        : Complex<int>(real, image), Decorator(angle)
+    {}
+    void whatever() override {
+        cout << "Decorating complex number with an angle of "
+             << Decorator::angle << endl;
+    }
+    void echoComplex() override {
+        cout << " Y = " << *this->real << " + " << *this->image << "*J\n";
+    }
+};
+
+
+int main() {
+
+    int *real = new int(3);
+    int *image = new int(4);
+    IntComplex *c1 = new IntComplex(real, image, 10);
+    c1->whatever();
+    c1->echoComplex();
+
+    delete real, image, c1;
+
+    return 0;
+}