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Re: warning for unsigned parameter, signed argument with NSUInteger
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Re: warning for unsigned parameter, signed argument with NSUInteger


  • Subject: Re: warning for unsigned parameter, signed argument with NSUInteger
  • From: "Sean McBride" <email@hidden>
  • Date: Wed, 15 Apr 2009 16:59:16 -0400
  • Organization: Rogue Research Inc.

On 4/15/09 1:53 PM, Greg Parker said:

>> I have way more warnings than that enabled and I don't get a warning
>> either.  I don't think there is one.  File a bug.
>
>-Wconversion will warn about this ("Also, warn if a negative integer
>constant expression is implicitly converted to an unsigned type.")
>But -Wconversion generates other undesirable and unavoidable warnings,
>so you probably can't use it.

Oh yeah, forgot about that one.  In gcc >= 4.3 the 'other undesirable
and unavoidable warnings' were removed:
<http://gcc.gnu.org/gcc-4.3/changes.html>

So -Wconversion is probably exactly what is called for.

Hopefully we'll see it in Apple's gcc fork one day!  Greg, is a radar needed?

--
____________________________________________________________
Sean McBride, B. Eng                 email@hidden
Rogue Research                        www.rogue-research.com
Mac Software Developer              Montréal, Québec, Canada


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      • From: Greg Parker <email@hidden>
References: 
 >warning for unsigned parameter, signed argument with NSUInteger (From: Roland King <email@hidden>)
 >Re: warning for unsigned parameter, signed argument with NSUInteger (From: "Sean McBride" <email@hidden>)
 >Re: warning for unsigned parameter, signed argument with NSUInteger (From: Greg Parker <email@hidden>)

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