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

Subject: Re: Warning flag for 'if (x = y)'
From: Prachi Gauriar <email@hidden>
Date: Fri, 16 Jan 2004 13:42:44 -0600

On Jan 16, 2004, at 1:03 PM, Alastair Houghton wrote:

On 16 Jan 2004, at 18:00, Matt Gough wrote:


I just spent half an hour tracking down a bug caused by doing:

if (x = y)

when I meant:

if (x == y)
 <snip>


The warning flag you are after is -Wparentheses.  Personally, I use
-Wall, which includes this warning by default; you might be using
-Wmost, which doesn't.

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.

-Prachi
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Follow-Ups:
- Re: Warning flag for 'if (x = y)'
  - From: Scott Tooker <email@hidden>
- Re: Warning flag for 'if (x = y)'
  - From: Matt Gough <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>)

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