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From: beshers@fork.columbia.edu (Clifford Beshers)
Newsgroups: comp.lang.c++
Subject: Bug in cfront 1.2.1.  operator= not inherited properly.
Message-ID: <5936@columbia.edu>
Date: 12 Oct 88 17:24:52 GMT
Article-I.D.: columbia.5936
Sender: news@columbia.edu
Reply-To: beshers@fork.UUCP (Cliff Beshers)
Organization: Columbia University Department of Computer Science
Lines: 46

//  The following code illustrates a bug in cfront 1.2.1
//  The operator= member does not get inherited properly.
//  It can be invoked with the syntax b.operator=(a), but not
//  with b=a.

#include <stream.h>

class base_class {
	int d;
public:
	base_class(int s)
	{
		d = s;
	}
	~base_class() {}

	base_class& operator=(base_class& b)
	{
		d = b.d;
		return *this;
	}
	int data()
	{
		return d;
	}
};


class derived_class : public base_class
{
public:
	derived_class(int i) : (i) { }
};


main(int argc, char * argv[])
{
	derived_class a(1);
	derived_class b(2);

	b.operator=( a );    // This compiles.
	b = a;		     // This does not.
}
Cliff Beshers
Columbia University Computer Science Department
beshers@sylvester.columbia.edu