Possible G++ compiler problem (or is what I am doing plain old wr ong)

Possible G++ compiler problem (or is what I am doing plain old wr ong)

[Dave Gotwisner]

I have a small piece of code that gives a fatal compiler error.  Depending
upon the version of G++, the error reported is different, but it is fatal
just the same.

A simple test program that causes the problem follows:

using namespace std;

class baseObj
{
    public:
        int getBaseObj(void) { return m_BaseObj; }
    private:
        int m_BaseObj;
};

class OSE : virtual public baseObj
{
    public:
        int getOSEVar(void) { return Config.m_OSEVar; }
    private:
        struct Config
        {
            int m_OSEVar;
        } Config;
};

class OSEEther : virtual public OSE
{
    public:
        int getOSEEtherVar(void) { return Config.m_OSEEtherVar; }
    private:
        struct Config
        {
            int m_OSEEtherVar;
        } Config;
};

int
main(int ac, char **av)
{
    OSEEther a;
}

The compiler used, and the errors reported are as follows:

	g++ -v [linux, target x86 linux -- standard compiler distributed
with RedHat 8.0]:
		Reading specs from
/usr/lib/gcc-lib/i386-redhat-linux/3.2/specs
		Configured with: ../configure --prefix=/usr
--mandir=/usr/share/man --infodir=/usr/share/info --enable-shared
--enable-threads=posix --disable-checking --host=i386-redhat-linux
--with-system-zlib --enable-__cxa_atexit
		Thread model: posix
		gcc version 3.2 20020903 (Red Hat Linux 8.0 3.2-7)

		Compile line:
			g++    -c -o classtest.o classtest.cc

		Error:
			classtest.cc:31: Internal compiler error in
pop_binding, at cp/decl.c:1178
			Please submit a full bug report,
			with preprocessed source if appropriate.
			See <URL:http://bugzilla.redhat.com/bugzilla/> for
instructions.

	g++ (Solaris host, VxWorks solaris simulator target):
		Reading specs from
/a/tools/europa/tornado/2.2.io/host/sun4-solaris2/bin/../lib/gcc-lib/sparc-w
rs-solaris2.5.1/gcc-2.96/specs
		gcc version gcc-2.96 (2.96+) 19990621 VxWorks 5.5

		Error:
			classtest.cc:31: Internal compiler error.
			classtest.cc:31: Please submit a full bug report.

	g++ (Solaris host, MIPS target for VxWorks):
		Reading specs from
/a/tools/europa/tornado/2.2.io/host/sun4-solaris2/bin/../lib/gcc-lib/mips-wr
s-vxworks/2.96-mips3264-010729/specs
		gcc version 2.96-mips3264-010729 (2.96+) VxWorks 5.5

		Error: [same as other VxWorks target compiler error]

I am assuming that what I am trying to do is valid, since both Config's are
private structures, so should not be accessible outside the actual class.
People who I have spoken to here at work indicate that it should be valid,
someone is performing a similar test with Microsoft's C++ compiler on
windows to see what it does.

Because this code is generated from an XML schema, I would prefer not to
internally change the names if I can avoid it.

Any help or feed back will be appreciated.  If this list indicates that it
is valid code that should compile, I will also report it to WindRiver,
although I doubt that they have anyone that can fix it.

	Dave