Thread: Use private constructor in C++

I began learning c++ language. I want to know about private constructor. So please tell me about use of private constructor in C++. Any help will be appreciated.

Private constructor is utilized in c++ to make object of class single time. Means your class doesn’t have more that one instance of class. See code given below to understand it.

Code:

class MyClassEg()
{ private:
  	MyClassEg() { }
	  	public:
  	MyClassEg & Instances()
  	{    static MyClassEg * aGlobalInsts = new MyClassEg();
    return *MyClassEg;
  	} };