code refactoring: fix memory leaks, code style, etc.

facade/Facade.cpp

@@ -15,27 +15,33 @@
  * implement more complex subsystem functionality
  * and have no knowledge of the facade
  */
-class SubsystemA {
+class SubsystemA
+{
 public:
-  void suboperation() {
+  void suboperation()
+  {
     std::cout << "Subsystem A method" << std::endl;
     // ...
   }
   // ...
 };
 
-class SubsystemB {
+class SubsystemB
+{
 public:
-  void suboperation() {
+  void suboperation()
+  {
     std::cout << "Subsystem B method" << std::endl;
     // ...
   }
   // ...
 };
 
-class SubsystemC {
+class SubsystemC
+{
 public:
-  void suboperation() {
+  void suboperation()
+  {
     std::cout << "Subsystem C method" << std::endl;
     // ...
   }
@@ -47,24 +53,25 @@ public:
  * delegates client requests to appropriate subsystem object
  * and unified interface that is easier to use
  */
-class Facade {
+class Facade
+{
 public:
-  Facade() :
-    subsystemA(), subsystemB(), subsystemC() {}
-
-  void operation1() {
+  Facade() : subsystemA(), subsystemB(), subsystemC() {}
+  
+  void operation1()
+  {
     subsystemA->suboperation();
     subsystemB->suboperation();
     // ...
   }
-
-  void operation2() {
+  
+  void operation2()
+  {
     subsystemC->suboperation();
     // ...
   }
-
   // ...
-
+  
 private:
   SubsystemA *subsystemA;
   SubsystemB *subsystemB;
@@ -76,8 +83,10 @@ private:
 int main()
 {
   Facade *facade = new Facade();
+  
   facade->operation1();
   facade->operation2();
-
+  delete facade;
+  
   return 0;
 }