Re: [boost] [smart_ptr] Is there any interest in unique_ptr with type erased deleter?

On Tue, Mar 21, 2017 at 12:00 PM, Richard Hodges wrote:

What is required, more than simply creating a type-erased deleter?

Also deleter must capture pointer, because pointer which was passed to constructor can differ from the pointer which will be deleted. For example, struct Base { /* ... */ }; struct Derived : Base { /* ... */ }; ptr<Derived> p1(new Derived); void * raw_p1 = p1.get(); ptr<Base> p2 = std::move(p1); void * raw_p2 = p2.get(); assert(raw_p1 != raw_p2);

Isn’t this simply a partial specialisation of std::unique_ptr?

It seems to me that to declare specialization of std::unique_ptr is undefined behavior. -- Andrey Davydov.