HOW MANY INSTANCES OF THE VIRTUAL BASE CLASS WILL BE CRAETED IN last d

kishore1021

HOW MANY INSTANCES OF THE VIRTUAL BASE CLASS WILL BE CRAETED IN THE BOTTOM CLASS.

a is BASE CLASS class a
b and c are DERIVED CLASSES class b and class c
d is DERIVED DERIVED CLASS class d

class a
{
};
class b: public a
{
};
class c:public a
{
};

class d: public b ,public c
{
}
So How many Instances of class a are present in class d. Is there any way to change the number of Instances

SteveC

: HOW MANY INSTANCES OF THE VIRTUAL BASE CLASS WILL BE CRAETED IN THE BOTTOM CLASS.
:
: a is BASE CLASS class a
: b and c are DERIVED CLASSES class b and class c
: d is DERIVED DERIVED CLASS class d
:
: class a
: {
: };
: class b: public a
: {
: };
: class c:public a
: {
: };
:
: class d: public b ,public c
: {
: }
: So How many Instances of class a are present in class d.
Count them - one of each, both contain 1 a - therefore 2 right?

: Is there any way to change the number of Instances
Rewrite the code?

C++ is case sensitive
And so are we - http://www.tuxedo.org/~esr/faqs/smart-questions.html#writewell

chamster

Will any instances get created? If i remember right ":"-symbol means that you inherit a class and extend it with your own stuff. But you don't create any instances by that. Am i totally confused?


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Konrad
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