Re: Convert Derived** to Base**
On Aug 5, 5:36 pm, Victor Bazarov <v.Abaza...@comAcast.net> wrote:
dani...@mail.ru wrote:
class A {};
class B : public A{};
void f (A* a[]) {}
int main() {
B* b[2];
b[0] = new B();
b[1] = new B();
f(b);
return 0;
}
Compiler says it cannot convert B** into A**. What am I doing wrong?
Nothing. There is no conversion between those. Classes are related.
You are hence allowed to convert between pointers to those classes. Bu=
t
pointers to those classes are not related, so conversion between
pointers to pointer to those classes does not exist.
What are you trying to accomplish? What does your _real_ 'f' do with
the pointers?
V
--
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I want to perform an action on each element of array, polymorphically
(e.g. call virtual function, that was declared in class A). Should I
just use vector<A*> instead?
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