Re: querying for virtual method existence

From:

Ron <ron.natalie@gmail.com>

Newsgroups:

comp.lang.c++.moderated

Date:

Mon, 13 Jul 2009 09:21:08 CST

Message-ID:

<98832cf2-27b4-4c6b-ac85-fe56b6d972b6@m18g2000vbi.googlegroups.com>

On Jul 12, 7:05 pm, rabin shahav <sha...@gmail.com> wrote:

Hi All,
I've a base class and about 500 derivatives classes. No, i'm not
confusing class instances with class definitions... and don't ask how
we end up having so many classes...

There are few methods which can be eliminated from the whole hierarchy
cone if at run time the base class could "know" if a certain method
was overridden.

Bottom line - i need the code for Foo::wasBarReDefinedNew

your help is well appreciated.
Rabin.

class Foo {
public:
   virtual int bar(double, int, char ) ;
   virtual bool wasBarReDefined()const=0;
   bool wasBarReDefinedNew()const
    { // i need the code here...
      return ????
   }

};

There's no code that you can put there to determine this.
Can't even venture a workaround without understanding what you are
trying
to accomplish. What are you going to do with the wasBarReDefened
test?

--
[ See http://www.gotw.ca/resources/clcm.htm for info about ]
[ comp.lang.c++.moderated. First time posters: Do this! ]