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From: Paolo Bonzini <bonzini@gnu.org>
To: Andreas Schwab <schwab@suse.de>
Cc: Ian Lance Taylor <iant@google.com>,
	  Doug Gregor <doug.gregor@gmail.com>,
	 jklowden@freetds.org, gcc-patches@gcc.gnu.org, gcc@gnu.org
Subject: Re: -Wparentheses lumps too much together
Date: Sat, 12 Jan 2008 11:23:00 -0000	[thread overview]
Message-ID: <4788954D.6010304@gnu.org> (raw)
In-Reply-To: <jezlvbmlps.fsf@sykes.suse.de>

Andreas Schwab wrote:
> Ian Lance Taylor <iant@google.com> writes:
> 
>> I'm inclined to approve this if -Wprecedence stays in -Wall, but I'd
>> like to hear if anybody else has anything to say.
> 
> The name of the option is rather poor, IMHO.  -Wparentheses warns about
> precedences, so what is the difference to -Wprecedence?

-Wparentheses warns in general about things that the GCS prefer to be 
parenthesized.  I would prefer something like

int warn_precedence = 2;

...

if (warn_precedence == 2)
   warn_precedence = warn_parentheses;

that is, we have

   -Wparentheses remains as is now, and is enabled by -Wall
   -Wparentheses -Wno-precedence only warns about things like a = b = c
                                 for bool b and non-bool a

Paolo

  reply	other threads:[~2008-01-12 10:24 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-19 20:07 jklowden
2007-12-19 20:14 ` Doug Gregor
2007-12-19 20:39   ` Ismail Dönmez
2007-12-19 20:15 ` Daniel Jacobowitz
2007-12-19 23:11 ` Ian Lance Taylor
2007-12-20  6:08   ` James K. Lowden
2007-12-20 16:41     ` Paul Brook
2007-12-21 20:19       ` Ross Smith
2008-01-11  7:34         ` Rehno Lindeque
2008-01-11 17:00           ` Joe Buck
2008-01-11 17:05             ` Robert Dewar
2008-01-11 23:26             ` Ian Lance Taylor
2008-01-12  0:50               ` Joe Buck
2007-12-20 18:01     ` Ian Lance Taylor
2007-12-21  5:28       ` James K. Lowden
2007-12-21  9:27 ` Ralf Wildenhues
2007-12-21 17:16   ` NightStrike
2008-01-11 22:44 ` Doug Gregor
2008-01-12  3:48   ` Ian Lance Taylor
2008-01-12 10:16     ` Andreas Schwab
2008-01-12 11:23       ` Paolo Bonzini [this message]
2008-01-13 16:03     ` Gabriel Dos Reis
2008-03-10 17:25 Derek M Jones

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