Class inheritance question

[Allerdyce.John]

I have 2 classes like this:

class Parent
{
public:
void divide( B* element);
protected:
virtual void divide(A* bd);
}

class Child : public Parent
{
protected:
virtual void divide(A* bd);

}

And I have code which calls this:
Child c;
c.divide(new B());

Why the above code can't compile? Why Child does not inherit 'divide(
B* element);' from Parent?

Thank you.

[Alf P. Steinbach]

* Al************@gmail.com:

I have 2 classes like this:

class Parent
{
public:
void divide( B* element);
protected:
virtual void divide(A* bd);
}

class Child : public Parent
{
protected:
virtual void divide(A* bd);

}

And I have code which calls this:
Child c;
c.divide(new B());

Why the above code can't compile?
It could, depending on what types B and A are.

However, if B and A are unrelated types it won't compile.

That's because the declaration of divide in Child, _hides_ the inherited
divide(A*), with respect to name lookup.

If that's the problem you're facing, you can add

using Parent::divide;

in class Child.

Why Child does not inherit 'divide( B* element);' from Parent?

It does.

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[Allerdyce.John]

Yes. class A and class B are not related.

And why I don't have the same problem in Java?
Thank you.

[Markus Moll]

Hi

Al************@gmail.com wrote:

And why I don't have the same problem in Java?

Just a wild guess... but I think that is because Java is a different
language.

Markus

[red floyd]

Al************@gmail.com wrote:

I have 2 classes like this:

class Parent
{
public:
void divide( B* element);
protected:
virtual void divide(A* bd);
}

class Child : public Parent
{
protected:
virtual void divide(A* bd);

}

And I have code which calls this:
Child c;
c.divide(new B());

Congratulations. You have a memory leak (unless Child::divide takes
ownership of the pointer passed to it).

[Ben Pope]

Al************@gmail.com wrote:

I have 2 classes like this:

class Parent
{
public:
void divide( B* element);
protected:
virtual void divide(A* bd);
}
;
class Child : public Parent
{
protected:
virtual void divide(A* bd);

}
;
And I have code which calls this:
int main() {
Child c;
c.divide(new B());
}
Why the above code can't compile? Why Child does not inherit 'divide(
B* element);' from Parent?

Missing semicolons, missing definition of B, missing main etc.

Please post code that compiles, or at least as close as possible.

Ben Pope
--
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