c/2904: printf changes order

Phil Edwards pedwards@disaster.jaj.com
Tue May 22 16:16:00 GMT 2001


The following reply was made to PR c/2904; it has been noted by GNATS.

From: Phil Edwards <pedwards@disaster.jaj.com>
To: guedem@uni-freiburg.de
Cc: gcc-gnats@gcc.gnu.org
Subject: Re: c/2904: printf changes order
Date: Tue, 22 May 2001 17:56:43 -0400

 On Tue, May 22, 2001 at 08:51:36PM -0000, guedem@uni-freiburg.de wrote:
 > 	printf("%d, %d, %d\n", *iPtr++, *iPtr++, *iPtr++);
 
 You are changing a variable more than once within the same statement.  The
 result is undefined behavior.  Not a compiler bug.
 
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