Re: Function template in Derived class - is this the only solution

From:
"Roger Orr" <rogero@howzatt.demon.co.uk>
Newsgroups:
comp.lang.c++.moderated
Date:
8 Jun 2006 06:44:22 -0400
Message-ID:
<e651q2$pue$1$8300dec7@news.demon.co.uk>
"Zedzed" <pete.cilliers@gmail.com> wrote in message
news:1149576853.676199.101230@y43g2000cwc.googlegroups.com...

Hi

I have the following code:

[snip]

{
        Base* d = new Derived();

        double db2 = d->get<double>(10); //Gives compile error
        double db2 = static_cast<Derived*>(d)->get<double>(10); //OK
        return 0;
}

My question is: Is this the best possible solution?


It depends what the problem is :-)

I cannot place the
function template in the base class since it is an abstract class and
will have no idea what the private data objects are to be.


If you need access to the templatized get<> method why not make 'd' a
Derived * ?
Or make Base have some non-templatized virtual methods for specific cases
rather than a template function.

Can you give more details about the higher level problem you are trying to
solve?

Roger Orr
--
MVP in C++ at www.brainbench.com

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