#include<list>
#include<iostream>
using namespace std;

template<class T>
class ObjectPool
{
	list<void *> data_list;
public:
	void *malloc_data()
	{
		if(!data_list.empty())
		{
			list<void *>::iterator it=data_list.begin();
			void *p=*it;
			data_list.pop_front();
			return p;
		}
		else
		{
			void *p=malloc(sizeof(T));
			return p;
		}
	}
	void free_data(void *p)
	{
		data_list.push_back(p);
	}
};
class Object{
public:
	int value;
	Object(int a):value(a){cout<<"Object("<<a<<")called"<<endl;}
	~Object(){cout<<"~Object("<<value<<")called"<<endl;}

	static ObjectPool<Object> pool_;
	void *operator new(size_t size)
	{
		return pool_.malloc_data();
	}
	void operator delete(void *p)
	{
		pool_.free_data(p);
	}
};

ObjectPool<Object> Object::pool_;
int _tmain(int argc, _TCHAR* argv[])
{
	Object* o1=new Object(1);
	Object* o2=new Object(2);
	delete o1;
	delete o2;

	return 0;
}