singleton.cpp

#include <iostream>

using namespace std;

class Singleton
{
    Singleton() 
    {
        cout << "Hello Singleton";
    }

    ~Singleton() 
    {}

public:
    Singleton(Singleton&) = delete;
    Singleton(Singleton&&) = delete;
    Singleton& operator = (Singleton&) = delete;
    Singleton& operator = (Singleton&&) = delete;
    
    static Singleton& get()
    {        
        static Singleton s;
        return s;
    }
};

int main()
{
    Singleton::get();
    Singleton::get();
    Singleton::get();
    
}