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dj
Guest
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 Posted: Thu Sep 14, 2006 9:10 am Post subject: virtual member function templates |
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I somehow understand why member function templates cannot be virtual,
but my question is how I could achieve something similar to this:
class A {
public:
template<typename T> virtual f() = 0;
}
class B : public A {
public:
template<typename T> f();
}
class C : public A {
public:
template<typename T> f();
}
That is, I would like to force subclasses to implement a templated
member function f. |
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werasm
Guest
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| Posted: Fri Sep 15, 2006 9:10 am Post subject: Re: virtual member function templates |
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dj wrote:
| Quote: | This code really does the thing, thank you. I agree it is very weird,
though. Especially the call "derived->template f<T>();" is something new
to me. I tried and it works as "derived->f<T>();", too.
|
The other way is technically correct. If the compiler compiles
derived->f<T>(), which VC++7.1 does do, its not iaw. standard. The
template syntax is for the compiler to discern that < is not a
relational operator, I think. Someone else can perhaps comment (my time
is limited right now).
Regards,
Werner |
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