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[Bug c/17018] New: address increment of function parameters changes their order
- From: "svetozarmarkov at netscape dot net" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 Aug 2004 14:36:46 -0000
- Subject: [Bug c/17018] New: address increment of function parameters changes their order
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
gcc -v reports:
Reading specs from /usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/specs
Configured with: /netrel/src/gcc-3.3.1-2/configure --enable-languages=c,c++,f77,
java --enable-libgcj --enable-threads=posix --with-system-zlib --enable-nls --wi
thout-included-gettext --enable-interpreter --enable-sjlj-exceptions --disable-v
ersion-specific-runtime-libs --enable-shared --build=i686-pc-linux --host=i686-p
c-cygwin --target=i686-pc-cygwin --prefix=/usr --exec-prefix=/usr --sysconfdir=/
etc --libdir=/usr/lib --includedir=/nonexistent/include --libexecdir=/usr/sbin
Thread model: posix
gcc version 3.3.1 (cygming special)
The program is:
#include <stdio.h>
void foo( char c1, char c2, char c3 ) {
printf( "%c%c%c\n", c1, c2, c3 );
}
int main( int argc, char **argv ) {
int i = 0;
char a[] = "abc";
char *pc = a;
foo( a[i++], a[i++], a[i++] );
foo( *pc++, *pc++, *pc++ );
i = 0;
pc = a;
foo( a[i++], a[i++], a[i] );
foo( *pc++, *pc++, *pc );
return 0;
}
The output is:
cba
cba
baa
baa
When I would expect (and I got with gcc 2.95.2 under Solaris 9!):
abc
abc
abc
abc
--
Summary: address increment of function parameters changes their
order
Product: gcc
Version: 3.3.1
Status: UNCONFIRMED
Severity: minor
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: svetozarmarkov at netscape dot net
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17018