C++ Singleton design pattern.
- by Artem Barger
Recently I've bumped into realization/implementation of Singleton design pattern for C++. It has looked in the following way (I have adopted it from real life example):
// a lot of methods is omitted here
class Singleton
{
public:
static Singleton* getInstance( );
~Singleton( );
private:
Singleton( );
static Singleton* instance;
};
From this declaration I can deduce that instance field is initiated on the heap, that means there is a memory allocation. That is completely unclear for me is when does exactly memory is going to be deallocated? Or there is a bug and memory leak? It seems like there is a problem in implementation.
PS. And main question how to implement it in the right way?
