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c++/8724: G++ 3.2 accepts explicit destructor call for incomplete class
- From: eker at csl dot sri dot com
- To: gcc-gnats at gcc dot gnu dot org
- Date: 26 Nov 2002 19:57:05 -0000
- Subject: c++/8724: G++ 3.2 accepts explicit destructor call for incomplete class
- Reply-to: eker at csl dot sri dot com
>Number: 8724
>Category: c++
>Synopsis: G++ 3.2 accepts explicit destructor call for incomplete class
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: accepts-illegal
>Submitter-Id: net
>Arrival-Date: Tue Nov 26 12:06:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator: Steven Eker
>Release: 3.2
>Organization:
>Environment:
Red Hat Linux 7.3 2.96-110 on a P4
>Description:
G++ 3.2 accepts explicit destructor call for incomplete class and
silently generates bad code. G++ 2.95.3 does not have this problem.
The output is from a linux box. I have also seen this happen with
G++ 3.1 & 3.2 on a solaris box.
> g++-3.2 -v -Wall -S gccBug.cc
Reading specs from /csl/lib/gcc-lib/i686-pc-linux-gnu/3.2/specs
Configured with: ./configure --prefix=/csl --program-suffix=-3.2
Thread model: posix
gcc version 3.2
/csl/lib/gcc-lib/i686-pc-linux-gnu/3.2/cc1plus -v -D__GNUC__=3 -D__GNUC_MINOR__=2 -D__GNUC_PATCHLEVEL__=0 -D__GXX_ABI_VERSION=102 -D__ELF__ -Dunix -D__gnu_linux__ -Dlinux -D__ELF__ -D__unix__ -D__gnu_linux__ -D__linux__ -D__unix -D__linux -Asystem=posix -D__NO_INLINE__ -D__STDC_HOSTED__=1 -D_GNU_SOURCE -Acpu=i386 -Amachine=i386 -Di386 -D__i386 -D__i386__ -D__tune_i686__ -D__tune_pentiumpro__ gccBug.cc -D__GNUG__=3 -D__DEPRECATED -D__EXCEPTIONS -quiet -dumpbase gccBug.cc -Wall -version -o gccBug.s
GNU CPP version 3.2 (cpplib) (i386 Linux/ELF)
GNU C++ version 3.2 (i686-pc-linux-gnu)
compiled by GNU C version 3.2.
#include "..." search starts here:
#include <...> search starts here:
/csl/include/c++/3.2
/csl/include/c++/3.2/i686-pc-linux-gnu
/csl/include/c++/3.2/backward
/usr/local/include
/csl/include
/csl/lib/gcc-lib/i686-pc-linux-gnu/3.2/include
/csl/i686-pc-linux-gnu/include
/usr/include
End of search list.
>How-To-Repeat:
class Foo;
void
bar(void* p)
{
static_cast<Foo*>(p)->~Foo();
}
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: