Private Destructor

[San 0]

Hi all, What is the use of declaring a private destructor? Where we are using this? Can anybody tell an example Thanks San

[_AnsHUMAN_]

The purpose of the private destructor is to avoid the deletion of the object while it is still referenced

Some things seem HARD to do, until we know how to do them. ;-)_AnShUmAn_

[San 0]

Could please send me some sample code

[Manish K Agarwal]

and other use could be if you want to stop the creation of the object on stack. Yes, you can not delete these object by using delete. Either you have to assume that you don't want to delete such objects or you have to overload the delete or delete these from any friend function. class Test { public: Test(){} private: ~Test(){} }; int _tmain(int argc, _TCHAR* argv[]) { //Test tmp; // Compilation error; Test *testP = new Test(); // work fine return 0; }

Manish Agarwal manish.k.agarwal @ gmail DOT com

[sheshidar]

Test *testP = new Test(); // work fine

what about delete?

[Manish K Agarwal]

for delete we have to create a friend function or we have to assume that we don't want to delete this :)

Manish Agarwal manish.k.agarwal @ gmail DOT com

[krishna_CP]

HI Manish, How to write Friend Function to call Delete on Private Destructor. Thanks, Krishna.

[Manish K Agarwal]

here is a minimal example

class A
{
private:
~A(){};
public:
A(){};
friend void fn();
};

void fn()
{
A a;
}

In this case if you create a object of class A on stack in any other function other than fn() complier will give you an error C2248: 'A::~A' : cannot access private member declared in class 'A'

Manish Agarwal manish.k.agarwal @ gmail DOT com