30 lines
821 B
C++
30 lines
821 B
C++
|
|
#ifndef SINGLETON_POINTER_HPP
|
|
#define SINGLETON_POINTER_HPP
|
|
|
|
#include <iostream>
|
|
#include <string>
|
|
|
|
class ClassicSingleton{
|
|
public:
|
|
// returns pointer to single getInstance
|
|
static ClassicSingleton* getInstance();
|
|
|
|
// example functions manipulating singleton object
|
|
inline void showMessage() const { std::cout << message;}
|
|
void updateMessage(const std::string &m) { message=m;}
|
|
|
|
private:
|
|
// Do not allow construction of this object; Use getInstance() instead
|
|
ClassicSingleton(){ message = "New ClassicSingleton\n";}
|
|
// Do not allow copying of this object
|
|
ClassicSingleton(const ClassicSingleton&){}
|
|
ClassicSingleton& operator=(const ClassicSingleton&){}
|
|
|
|
// Static pointer to instance of this singleton
|
|
static ClassicSingleton* instance;
|
|
std::string message;
|
|
};
|
|
|
|
#endif // SINGLETON_POINTER_HPP
|