Re: Promoting weak pointers

Scott Burson <fset.slb@gmail.com>
Mon, 15 Jun 2009 11:20:42 -0700 (PDT)

          From comp.compilers
Related articles
Promoting weak pointers m.helvensteijn@gmail.com (Michiel Helvensteijn) (2009-06-11)
Re: Promoting weak pointers fset.slb@gmail.com (Scott Burson) (2009-06-15)
Re: Promoting weak pointers andrew@tomazos.com (Andrew Tomazos) (2009-06-16)
Re: Promoting weak pointers m.helvensteijn@gmail.com (Michiel Helvensteijn) (2009-06-16)
Re: Promoting weak pointers m.helvensteijn@gmail.com (Michiel Helvensteijn) (2009-06-16)
Re: Promoting weak pointers m.helvensteijn@gmail.com (Michiel Helvensteijn) (2009-06-17)
Re: Promoting weak pointers bobduff@shell01.TheWorld.com (Robert A Duff) (2009-06-17)
Re: Promoting weak pointers andrew@tomazos.com (Andrew Tomazos) (2009-06-18)
[2 later articles]
| List of all articles for this month |
From: Scott Burson <fset.slb@gmail.com>
Newsgroups: comp.compilers
Date: Mon, 15 Jun 2009 11:20:42 -0700 (PDT)
Organization: Compilers Central
References: 09-06-047
Keywords: linker
Posted-Date: 16 Jun 2009 04:55:26 EDT

On Jun 11, 9:10 am, Michiel Helvensteijn <m.helvenste...@gmail.com>
wrote:
> Hi all!
>
> In September, last year, I posted here asking your opinions on weak
> pointers:
>
> http://compilers.iecc.com/comparch/article/08-09-004


I wasn't in on the previous discussion, but if I had been, I would
have said this:


The term "weak pointer" is a misnomer. Weakness is not a property of
pointers, but rather of locations that hold pointers. It really would
be better to say "weak location".


So you don't "promote a weak pointer to a strong pointer"; you read
the contents of a weak location, which can contain either a pointer or
null.


-- Scott


Post a followup to this message

Return to the comp.compilers page.
Search the comp.compilers archives again.