Differences

This shows you the differences between two versions of the page.

--- cpp:friend_methods [2017/04/20 15:51] – gthanos
+++ cpp:friend_methods [2017/04/20 16:09] – gthanos
@@ Line 61: / Line 61: @@
   public:
     Rectangle(int w, int h);
+    Rectangle() {}
     void setWidth(int w);
     void setHeight(int h);
@@ Line 84: / Line 85: @@
 class Cuboid {
-  Rectangle r;
+  Rectangle rect;
   int length;
 public:
-  void modifyDimensions(int dw, int dh, int dl) {
+  Cuboid(Rectangle r, int l);
-    r.width += dw;
+  int volume();
-    r.height += dh;
+};
-    length += dl;
-  }
+Cuboid::Cuboid(Rectangle r, int l) {
+  rect = r; length = l;
 }
-<code>
+int Cuboid::volume() {
+  return rect.width * rect.height * length;
+}
+</code>
+<code cpp CuboidVolume.cpp>
+#include <iostream>
+using namespace std;
+#include "Cuboid.cpp"
+int main() {
+  Rectangle rectangle(5,6);
+  Cuboid cuboid(rectangle, 10);
+  cout << "volume: " << cuboid.volume() << endl;
+}
+</code>