🚀 go-pugleaf

I built a class using multiple inheritance and am getting the following message
when I compile it:

$ gcc/plusplus/include=(INC$)/noopt/debug/nolist/object=OBJ$:SQS-TK560DRIVESLOT.obj SRC$:SQS-TK560DRIVESLOT.CXX
src$:sqs-tk560driveslot.cxx: In method `SQS_TK560DriveSlot::SQS_TK560DriveSlot(int)':
src$:sqs-tk560driveslot.cxx:64: member `address' belongs to MI-distinct base classes `SQS_TSlot'
%GCC-I-NOOBJECT No object file was produced.

The inheritance looks something like follows (stuff left out for simplicity,
each class declaration is in a seperate include file.):

class SQS_TSlot
{
    int a ;

public :
    int address() { return a ; }
    void address(int addr) { a = addr ; }
} ;

--

class SQS_TDriveSlot : public SQS_TSlot
{
public :    
    virtual unsigned long dismount() = 0 ;		// Dismount the content of the specific drive.
    virtual unsigned long dismount(struct dsc$descriptor&) = 0 ;
							// Dismount the specific drive only if it contains the specified volume.
} ;

--

class SQS_TK560Slot : public SQS_TSlot
{
public :
} ;

--

class SQS_TK560DriveSlot 
:   public SQS_TDriveSlot, 
    public SQS_TK560Slot
{
public :

    SQS_TK560DriveSlot(int) ;
} ;

When I try to reference the address function in the constructor for
SQS_TK560DriveSlot the above error happens.

SQS_TK560DriveSlot::SQS_TK560DriveSlot (
    int addr)
{
    SQS_TDriveSlot::address(addr) ;
    unsigned long status = readState() ;
    if (!$VMS_STATUS_SUCCESS(status))
    {
        lib$signal(status, 0, 0) ;
    }
}

Unless I use scope resolution to eliminate the error message.  The little test
case (all in one file) I put together doesn't exhibit the same behavior:

class a
{
	int fa ;
public :
	a(int b) : fa(b) {} ;
	a() {} ;
	accessa() { return fa;} ;
	accessa(int a) { fa = a ; } ;
	virtual foo() ;
} ;

class b
{
	int fb ;
public :
	accessb() { return fb ;} ;
	accessb(int b) { fb = b ; } ;
} ;

class c : public a
{
	int fc ;
public :
} ;

class d : public b, public c
{
public :
	d(int addr) { accessa(addr) ; } ;
	foo() ;
} ;

d::d(int addr) { accessa(addr) ; } ;

d::foo()
{
	printf("%d",accessa()) ;
	return 1 ;
}

Can someone explain what's going on (or have I hit a snag in the compiler)?

Thanks for the help.
-- 
Dick Munroe				Internet: munroe@dmc.com
Doyle Munroe Consultants, Inc.		UUCP: ...uunet!thehulk!munroe
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