From: comeau@panix.com (Greg Comeau)
To: 9fans@9fans.net
Subject: Re: [9fans] porting help please (gcc void pointer handling)
Date: Thu, 10 Sep 2009 09:30:12 +0000 [thread overview]
Message-ID: <h88jkv$jj7$1@panix3.panix.com> (raw)
In-Reply-To: <df49a7370909090849wc1729bk469b15da35ec3798@mail.gmail.com>
In article <df49a7370909090849wc1729bk469b15da35ec3798@mail.gmail.com>,
roger peppe <rogpeppe@gmail.com> wrote:
>2009/9/9 erik quanstrom <quanstro@quanstro.net>:
>>> gcc happily compiles a definition like
>>> #define CT_v249 =C2=A0 =C2=A0 =C2=A0 ((void*)startLabel+464)
>>
>> no it doesn't.
>
>yes it does:
>
>% cat > x.c
>void *f(void *v){return v + 23;}
>% gcc -Wall -c x.c
>%
use -pedantic:
q.c:1: warning: pointer of type 'void *' used in arithmetic
There is probably some option to have the warning as an error too.
--
Greg Comeau / 4.3.10.1 with C++0xisms now in beta!
Comeau C/C++ ONLINE ==> http://www.comeaucomputing.com/tryitout
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next prev parent reply other threads:[~2009-09-10 9:30 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-09 15:03 Fernan Bolando
2009-09-09 15:35 ` erik quanstrom
2009-09-09 15:49 ` roger peppe
2009-09-10 9:30 ` Greg Comeau [this message]
2009-09-10 9:29 ` Greg Comeau
2009-09-10 9:40 ` erik quanstrom
2009-09-09 15:41 ` Charles Forsyth
[not found] ` <1745bc1073a021783cf2ff8658d7ce47@quanstro.net>
2009-09-09 15:43 ` Fernan Bolando
2009-09-10 9:30 ` Greg Comeau
2009-09-09 16:08 ` Charles Forsyth
[not found] ` <ace1f791830bf1d3f9d8c1e5cea17c14@terzarima.net>
2009-09-09 16:27 ` Fernan Bolando
2009-09-09 16:54 ` Charles Forsyth
2009-09-09 18:17 ` ron minnich
2009-09-11 1:45 ` Fernan Bolando
2009-09-10 9:31 ` Greg Comeau
2009-09-10 9:29 ` Greg Comeau
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