From: Georg-Johann Lay <avr@gjlay.de>
To: Jonathan Wakely <jwakely.gcc@gmail.com>
Cc: gcc-help@gcc.gnu.org
Subject: Re: Missing "var is used uninitialized" warning?
Date: Sat, 17 Sep 2011 20:43:00 -0000 [thread overview]
Message-ID: <4E750621.3060505@gjlay.de> (raw)
In-Reply-To: <CAH6eHdRLhkHcC_NwS=kgJbC3JQyJ5MgVtV+74r+91fqcViPGyQ@mail.gmail.com>
Jonathan Wakely schrieb:
> On 17 September 2011 21:32, Georg-Johann Lay wrote:
>
>>Hi, compiled with -Wall -Wextra the wollowing lines don't complain about a
>>being used uninitialized. Tried with 4.5 and 4.6. Am I missing something?
>>
>>int func (void)
>>{
>> int a = a;
>>
>> return a;
>>}
>
> Yes, you're missing -Winit-self
Thanks.
Confusing... extra option for that?
The message with -Wuninitialized -Winit-self is
warning: 'a' is used uninitialized in this function [-Wuninitialized]
Is there a special reason why this is not part of Wall or Wextra?
next prev parent reply other threads:[~2011-09-17 20:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-17 20:33 Georg-Johann Lay
2011-09-17 20:35 ` Jonathan Wakely
2011-09-17 20:43 ` Georg-Johann Lay [this message]
2011-09-17 20:48 ` Jonathan Wakely
2011-09-18 14:38 ` Georg-Johann Lay
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