Re: [boost] [shared_ptr] Some design advice

Subject: Re: [boost] [shared_ptr] Some design advice
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2011-05-31 13:42:15

Johnny Willemsen wrote:
>
> I want to create some refcounted objects using shared_ptr. For
> example if I have class A_impl, I want my users only to use A.
> So, I created the following code:
>
> class A_impl
> {
> public:
>   virtual ~A_impl () {};
>   void dosomething () {};
> };
>
> typedef shared_ptr <A_impl> A;
>
> The challenge is now that I want to provide some typedefs on A
> (which is a shared_ptr()). So that my users can use:
> A::my_value_type;

I think what you want is here: <http://www.boost.org/doc/libs/1_46_1/libs/smart_ptr/shared_ptr.htm#Handle/Body>.  You can put your typedefs in the handle class without trouble.

_____
Rob Stewart                           robert.stewart_at_[hidden]
Software Engineer                     using std::disclaimer;
Dev Tools & Components
Susquehanna International Group, LLP  http://www.sig.com

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