Re: weak pointer

[Murray Cumming <murrayc murrayc com>]

On Sat, 2007-07-21 at 19:28 +0200, Bram Neijt wrote:
> Hi developers,
> 
> I need a weak pointer in glibmm. I was thinking about something like:
> template <typename Tobj>
> class WeakPtr: private RefPtr<Tobj>
> {
>     RefPtr<Tobj> a;
>   public:
>  WeakPtr(other RefPTr)
> {
>   a = reptr;
>   a.cppObject->unreference();
> }
> 
>   RefPtr<Tobj> lock()
> {
>  //Try to get a valid RefPtr from a
> //if it's not valid, throw an error.
> }
> };
> 
> Would it be possible to start a discussion about the full
> implementation and get this into glibmm if I put in some effort to
> implement it more correctly?

I guess so, though I wonder if boost already has something, or can at
least provide inspiration.

This might also be useful:
http://developer.gnome.org/doc/API/2.0/gobject/gobject-The-Base-Object-Type.html#g-object-weak-ref

-- 
Murray Cumming
murrayc murrayc com
www.murrayc.com
www.openismus.com