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Re: Xcode-users Digest, Vol 2, Issue 621
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Re: Xcode-users Digest, Vol 2, Issue 621


  • Subject: Re: Xcode-users Digest, Vol 2, Issue 621
  • From: George Warner <email@hidden>
  • Date: Mon, 31 Oct 2005 14:04:39 -0800
  • Thread-topic: Xcode-users Digest, Vol 2, Issue 621

on 10/31/05 1:39 PM, email@hidden at
<email@hidden> wrote:
> I'm taking on some older code, and I'm getting this warning: "warning: target
> of assignment not really an lvalue; this will be a hard error in the future"
>
> for the following line:
>
> *((uint32_t*)dst)++ = *((uint32_t*)src)++;
>
> Why is this code going to be an error in the future?

Just use:

    *(uint32_t*)dst++ = *(uint32_t*)src++;

The typecasting has president over the post-increment operator. It will "do
the right thing". (And not cause the warning ;-).

--
Enjoy,
George Warner,
Schizophrenic Optimization Scientist
Apple Developer Technical Support (DTS)


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