abstract class & template methods

[Manuel Maria Diaz Gomez]

Hi Everybody

I would like to implement an interface class (abstract), where the pure
virtual method can take any parameter, and leave the actual implementation
to the end user.

I believe this is not correct:

template<typename T>
class IBase {

public:
virtual void do_something(T) = 0;

};

Any hints?

Cheers
Manuel

--
========================================================================
Manuel Diaz-Gomez | ATLAS Bldg. 32/SB-008 tel. +41 22 76 76304
CERN EP Division
CH-1211 Geneva 23
SWITZERLAND
========================================================================

 

[Victor Bazarov]

I would like to implement an interface class (abstract), where the pure
virtual method can take any parameter, and leave the actual implementation
to the end user.

I believe this is not correct:

template<typename T>
class IBase {

public:
virtual void do_something(T) = 0;

};

Any hints?

What hints? Why do you say it's not correct?
----------------------------------- compiles fine:
template<typename T>
class IBase {
public:
virtual void do_something(T) = 0;
};

class D : public IBase<int> {
virtual void do_something(int);
};

int main() {
D d;
IBase<int>& rib = d;
rib.do_something(42);
}