Deleting a pointer to const (T const*)

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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.

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