Re: Stupid objective-c question
Re: Stupid objective-c question
- Subject: Re: Stupid objective-c question
- From: Quincey Morris <email@hidden>
- Date: Fri, 23 Sep 2016 02:04:33 -0700
- Feedback-id: 167118m:167118agrif8a:167118sS5zSm_QeE:SMTPCORP
On Sep 23, 2016, at 01:36 , Alastair Houghton <email@hidden> wrote:
>
> Note that you can use *any* type for your variable; in some ways, it might make sense to use a non-pointer type, just to make clear that it’s the address that matters, e.g.
>
> static const int kMyContext = 0xabadf00d;
>
> Otherwise some smart-ass might go and delete the “&” operators from your code, and that makes it vulnerable to problems.
As previously mentioned, the safest way to do this is:
> static void* kMyContext = &kMyContext;
That makes the “&” optional (at comparison time), and it should even avoid the coalescing problem if it’s declared const.
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