SingleTon Pattern

 1 #ifndef _SINGLETON_H_
 2 #define _SINGLETON_H_
 3 
 4 #include <iostream>
 5 using namespace std;
 6 
 7 class Singleton
 8 {
 9  public:
10     static Singleton* Instance();
11 
12  protected:
13     Singleton();
14 
15  private:
16     static Singleton* _instance;
17 }
18 
19 #endif

Singleton.h