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Re: Warning flag for 'if (x = y)'
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Re: Warning flag for 'if (x = y)'


  • Subject: Re: Warning flag for 'if (x = y)'
  • From: Matt Gough <email@hidden>
  • Date: Fri, 16 Jan 2004 20:45:46 +0000

On 16 Jan 2004, at 19:42, Prachi Gauriar wrote:

In Xcode, if I set that flag for the build style, I get no warnings, but when I set it on a particular file, I do. Is this expected behavior? I would think you could set it for the whole project, but it doesn't quite work.


That might suggest why people's suggestions to use -Wparentheses hasn't worked for me.


While others have pointed out useful warning options, I'd like to point out a useful coding idiom: Whenever possible, use an r-value on the left side. e.g., all of the following will generate complaints from the compiler, whereas the reverse ordering won't:

This wouldn't have helped in my case, since both sides were just ints, not constants.

Matt
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  • Follow-Ups:
    • Re: Warning flag for 'if (x = y)'
      • From: Alastair Houghton <email@hidden>
References: 
 >Warning flag for 'if (x = y)' (From: Matt Gough <email@hidden>)
 >Re: Warning flag for 'if (x = y)' (From: Alastair Houghton <email@hidden>)
 >Re: Warning flag for 'if (x = y)' (From: Prachi Gauriar <email@hidden>)

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