quote:Original post by ace_lovegrove
But does it have to be a big pointer class? In Enginuity it look much more complicated than mine, but doesn''t entirely explain why.

Here''s min:

#include <stdio.h>template <class T>class SmartPointer{private:	T* ptr;public:	explicit SmartPointer(T* p = 0) : ptr(p) 	{		}	~SmartPointer()         	{		delete ptr;	}	T& operator *()				{		return &ptr	}	T* operator ->()			{		return ptr;	}};

regards,

ace

	T& operator *()				{		return *ptr; //not &ptr	}

quote:Original post by Fruny

quote:Original post by sirSolarius
What the heck is so smart about these pointers? It just looks like you made a standard pointer that deletes from the heap unconditionally when destructed (very very bad).

If that's so bad, care to explain why there is a smart pointer included in the standard library (std::auto_ptr) that does precisely that?

SmartPointer<int> a=new int;*a=2;while(true){    SmartPointer<int> b=a;    break;}*a=5;   // ERROR  

quote:Original post by sirSolarius

quote:Original post by Fruny

quote:Original post by sirSolarius
What the heck is so smart about these pointers? It just looks like you made a standard pointer that deletes from the heap unconditionally when destructed (very very bad).

If that''s so bad, care to explain why there is a smart pointer included in the standard library (std::auto_ptr) that does precisely that?

SmartPointer<int> a=new int;*a=2;while(true){    SmartPointer<int> b=a;    break;}*a=5;   // ERROR