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Re: gcc-4.2 -pedantic is too pedantic
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Re: gcc-4.2 -pedantic is too pedantic


  • Subject: Re: gcc-4.2 -pedantic is too pedantic
  • From: John Reppy <email@hidden>
  • Date: Wed, 16 Sep 2009 13:54:06 -0500

Done.  Bug number 7228852.

On Sep 16, 2009, at 12:30 PM, Chris Espinosa wrote:


On Sep 16, 2009, at 7:41 AM, John Reppy wrote:

When compiling some existing code on Snow Leopard, I'm getting warnings
about the use the use of the "%p" format specifier that seem excessive.
For example


<jhr@woton> cat p.c
#include <stdio.h>
void foo (int *x) { printf("%p\n", x); }
<jhr@woton> gcc -c -pedantic -m64 p.c
p.c: In function ‘foo’:
p.c:2: warning: format ‘%p’ expects type ‘void *’, but argument 2 has type ‘int *’


Since pointer types silently convert to void * in other cases, this warning
seems wrong to me.


FWIW I've also compiled this example using gcc 4.3 on Linux and do not get a warning.

Is this behavior a bug or a feature?

This is not specifically known in gcc 4.2 but seems related to another known bug. Please file a bug report and refer to bug 5935478.


Chris

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References: 
 >gcc-4.2 -pedantic is too pedantic (From: John Reppy <email@hidden>)
 >Re: gcc-4.2 -pedantic is too pedantic (From: Chris Espinosa <email@hidden>)

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