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* [Bug c++/23418] New: old-style cast uses reinterpret+const instead of static+const
@ 2005-08-16 10:18 stephan dot bergmann at sun dot com
2005-08-16 10:44 ` [Bug c++/23418] " caolanm at redhat dot com
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: stephan dot bergmann at sun dot com @ 2005-08-16 10:18 UTC (permalink / raw)
To: gcc-bugs
In the program
#include <stdio.h>
struct Base1 { int x1; };
struct Base2 { int x2; };
struct Derived: public Base1, public Base2 {};
int main() {
Derived const * d = new Derived;
printf("%p %p %p\n", d, (Base2 *) d, (Base2 const *) d);
}
the cast "(Base2 *) d" effectively does a
const_cast< Base2 * >(reinterpret_cast< Base2 const * >(d))
instead of a
const_cast< Base2 * >(static_cast< Base2 const * >(d))
(with the effect that of the three printed pointer values, errouneously the
first two are identical instead of the last two). This is in violation of 5.4/5
of the C++ Standard.
This happens with both 4.0.0 and 4.0.1, but not with 3.4.3. This error affects
the OpenOffice.org code base.
--
Summary: old-style cast uses reinterpret+const instead of
static+const
Product: gcc
Version: 4.0.1
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: stephan dot bergmann at sun dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23418
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/23418] old-style cast uses reinterpret+const instead of static+const
2005-08-16 10:18 [Bug c++/23418] New: old-style cast uses reinterpret+const instead of static+const stephan dot bergmann at sun dot com
@ 2005-08-16 10:44 ` caolanm at redhat dot com
2005-08-16 10:55 ` caolanm at redhat dot com
2005-08-16 11:57 ` pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: caolanm at redhat dot com @ 2005-08-16 10:44 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |caolanm at redhat dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23418
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/23418] old-style cast uses reinterpret+const instead of static+const
2005-08-16 10:18 [Bug c++/23418] New: old-style cast uses reinterpret+const instead of static+const stephan dot bergmann at sun dot com
2005-08-16 10:44 ` [Bug c++/23418] " caolanm at redhat dot com
@ 2005-08-16 10:55 ` caolanm at redhat dot com
2005-08-16 11:57 ` pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: caolanm at redhat dot com @ 2005-08-16 10:55 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at redhat dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23418
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/23418] old-style cast uses reinterpret+const instead of static+const
2005-08-16 10:18 [Bug c++/23418] New: old-style cast uses reinterpret+const instead of static+const stephan dot bergmann at sun dot com
2005-08-16 10:44 ` [Bug c++/23418] " caolanm at redhat dot com
2005-08-16 10:55 ` caolanm at redhat dot com
@ 2005-08-16 11:57 ` pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-16 11:57 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-08-16 11:56 -------
This has already been fixed in 4.0.2.
This is a dup of bug 22132.
*** This bug has been marked as a duplicate of 22132 ***
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23418
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2005-08-16 11:56 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2005-08-16 10:18 [Bug c++/23418] New: old-style cast uses reinterpret+const instead of static+const stephan dot bergmann at sun dot com
2005-08-16 10:44 ` [Bug c++/23418] " caolanm at redhat dot com
2005-08-16 10:55 ` caolanm at redhat dot com
2005-08-16 11:57 ` pinskia at gcc dot gnu dot org
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