RE: [Boost-Users] Re: Why scoped_ptr dost provide custom dealloca tion?

From: bjorn.karlsson_at_[hidden]
Date: 2003-02-14 08:00:19

> From: Peter Dimov [mailto:pdimov_at_[hidden]]
[snip]
> A zero-overhead scoped_ptr<X, D> would require a helper class here:

Yes, and I shouldn't have said scoped_ptr<X,D>, but scoped_ptr<X> with
custom deallocation capabilities... I'd be willing to pay for the increase
in size, but I realize not everyone would. The case is real, however.
 
> scoped_ptr<void, void (*) (void *)> p(hPrinter, &ClosePrinter);
> 
> that would increase sizeof(scoped_ptr) and is of questionable 
> utility. :-)

Actually, I kind of like it. :-)
 
> There is always the option to define a dedicated printer 
> class, of course.

Yep, but there are hundreds of cases like this, which is why the feature
would be useful. One could argue the same for the resource management of any
type, right? ;-)

Bjorn Karlsson