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From: arnez@de.ibm.com
Subject: Re: c++/7884: code compiled with optimization flag causes segmentation 
 violation
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X-SW-Source: 2002-09/txt/msg00202.txt.bz2
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The following reply was made to PR c++/7884; it has been noted by GNATS.

From: arnez@de.ibm.com
To: aloeff@de.ibm.com, gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org,
   gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org
Cc:  
Subject: Re: c++/7884: code compiled with optimization flag causes segmentation 
 violation
Date: Thu, 12 Sep 2002 10:44:10 +0200

 I don't quite understand why (char *)foo is an rvalue.  Using a cast as
 an lvalue is listed as one of GCC's extensions.  In particular GCC
 allows me to write:
 
 
 extern int do_stuff(void *bar);
 
 int f(char *str)
 {
     void *foo;
 
     (char *) foo = str+1;
     return do_stuff(foo);
 }
 
 
 I can compile this both in C or C++ mode, even with -ansi and -pedantic.
 
 
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7884