Deleting a pointer to const (T const*)

I have a basic question regarding the const pointers. I am not allowed to call any non-const member functions using a const pointer. However, I am allowed to do this on a const pointer:

delete p;

This will call the destructor of the class which in essence is a non-const 'method'. Why is this allowed? Is it just to support this:

delete this;

Or is there some other reason?

It's to support:

// dynamically create object that cannot be changed
const Foo * f = new Foo;

// use const member functions here

// delete it
delete f;

But note that the problem is not limited to dynamically created objects:

{
 const Foo f;
 // use it
} // destructor called here

If destructors could not be called on const objects we could not use const objects at all.

Put it this way - if it weren't allowed there would be no way to delete const objects without using const_cast.

Semantically, const is an indication that an object should be immutable. That does not imply, however, that the object should not be deleted.

Constructors and Destructors should not be viewed as 'methods'. They are special constructs to initialise and tear down an object of a class.

'const pointer' is to indicate that the state of the object would not be changed when operations are performed on it while it is alive.