Re: Block variable warnings
Re: Block variable warnings
- Subject: Re: Block variable warnings
- From: Sean McBride <email@hidden>
- Date: Wed, 23 Mar 2011 17:35:54 -0400
- Organization: Rogue Research Inc.
On Wed, 23 Mar 2011 09:08:39 +0000, Jonathan Taylor said:
>>> I don't get these if I use Xcode 4.
>>>
>>> How can I suppress these warnings when using Xcode 3.2.x?
>>>
>>
>> #pragma GCC diagnostic ignored "-Wshadow"
>>
>> ...code...
>>
>> #pragma GCC diagnostic warning "-Wshadow"
>
>I have always been rather wary of this, and have never confirmed to
>my satisfaction whether this is simply a spurious warning or an
>indication that the compiler has "misunderstood" my source code and
>hence potentially generated incorrect code from it (I've reported
>this and various similar bugs...). If it crops up I tend to take that
>as a cue to simplify what I am doing, and potentially remove that use
>of a block entirely, just to be safe...
In this case though, I'm pretty sure it's a false positive. Apple's gcc
4.2's support for blocks+C++ is known to be weak.
--
____________________________________________________________
Sean McBride, B. Eng email@hidden
Rogue Research www.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
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