Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uunet!cimshop!davidm
From: cimshop!davidm@uunet.UU.NET (David S. Masterson)
Newsgroups: gnu.g++.bug
Subject: Another possible G++ bug?
Message-ID: <CIMSHOP!DAVIDM.90Jan17120916@uunet.UU.NET>
Date: 17 Jan 90 20:09:16 GMT
Sender: davidm@cimshop.UUCP
Distribution: gnu
Organization: Consilium Inc., Mountain View, California.
Lines: 61

The following test program illustrates what I think is a problem with G++.  I
am using G++ 1.36.1 on SunOS 3.5.  The problem concerns improper use of the
private data of a parent class by a child class member method.  The program
compiles fine and runs fine with the expected result (depending on your line
of thought):

		N=3
		X=1

---------------- Code follows ----------------
#include <stream.h>

class A {
	int	x;

public:
	A() { x = 1; }
	~A() {}

	print() { cout << x << "\n"; }
};

class B {
	static A*	aptr;

public:
	B(A* a) { aptr = a; }
	~B() {}
};

class C:B {
	int	n;

public:
	C(A* a, int z):(a) { n = z; }
	~C() {}

	void testfunc();
};

void C::testfunc() {
	cout << "N=" << n << "\n";
	cout << "X=";
	aptr->print();
}

int main()
{
	A	testa;

	C	testc(&testa, 3);

	testc.testfunc();
}
----------------
--
===================================================================
David Masterson					Consilium, Inc.
uunet!cimshop!davidm				Mt. View, CA  94043
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"If someone thinks they know what I said, then I didn't say it!"