Re: [boost] Minor update to all _ptr headers

From: Peter Dimov (pdimov_at_[hidden])
Date: 2002-08-27 08:54:00

From: "Douglas Gregor" <gregod_at_[hidden]>
> I've applied a minor change to all _ptr headers (shared_ptr, scoped_ptr,
> weak_ptr, intrusive_ptr) that adds a detail function template
> 'is_pointerlike_helper' that looks like this:
>
> template<typename T>
> type_traits::yes_type is_pointerlike_helper(const xxx_ptr<T>&, int);
>
> I needed the ability to determine if a type 'T' is a pointer or smart
pointer
> in Signals, and this helper is needed to create the is_pointerlike trait
> check. Changes committed to CVS; no regressions AFAICT.

Also, get_pointer for weak_ptr was deliberately omitted as dangerous. Why do
you need it?