Re: inaccessible base despite public inheritance

From:
"Howard" <alicebt@hotmail.com>
Newsgroups:
comp.lang.c++
Date:
Tue, 22 May 2007 14:44:29 GMT
Message-ID:
<hlD4i.16214$Sa4.8693@bgtnsc05-news.ops.worldnet.att.net>
"Stefan Weber" <stefan.weber@gmail.com> wrote in message
news:1179841895.377257.275920@z24g2000prd.googlegroups.com...

Hi,

I have the following header file (named test.h):

class Foo
{
public:
Foo(void) {}
virtual ~Foo(void) {}
};

class Bar : public Foo
{
public:
Bar(void) {}
virtual ~Bar(void) {}
};

with a very simple cpp file:

#include "test.h"

int main() {
Foo* f = new Bar();
}

This compiles with Visual Studio 2005, but with g++ 4.1.1 I get an
error:

bash-3.00$ test.cpp:4: error: Foo is an inaccessible base of Bar

Acutally, I know that this error message occurs when doing something
like "class Bar : private Foo" (i.e. inherit the code but withouth
polymorphism). But I obviously declared to use public inheritance.
Does anybody see the problem?


The only thing I see unusual is the use of void as a parameter type. In
C++, don't use "(void)" when there's no parameter, just use "()". I don't
know if it's an error, but it's certainly not the norm.

-Howard

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