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Re: dynamic_cast and generic pointer

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Hi asit

On the: 06. of september-2011 At: 21:38 asit wrote:

> int main(int argc, char** argv)
> {
>     B ob = new B;
>     void *ptr;
>     ptr = dynamic_cast<void*>(&ob);
>     B* pt2 = dynamic_cast<B*>(ptr);
>     return 0;
> }

That will not compile!

This is how dynamic_cast usually is used as far as I know.

int main(int argc, char** argv)
{
     A *ob = new B;
     B* pt2 = dynamic_cast<B*>(ob);
     if( pt2 )
        cout << "pt2 is of type B" << endl;
     return 0;
}


Best regards
Asger-P

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dynamic_cast and generic pointer asit <lipun4u@gmail.com> - 2011-09-06 12:38 -0700
  Re: dynamic_cast and generic pointer Victor Bazarov <v.bazarov@comcast.invalid> - 2011-09-06 16:48 -0400
    Re: dynamic_cast and generic pointer asit <lipun4u@gmail.com> - 2011-09-06 14:23 -0700
      Re: dynamic_cast and generic pointer Ian Collins <ian-news@hotmail.com> - 2011-09-07 10:09 +1200
      Re: dynamic_cast and generic pointer "Default User" <defaultuserbr@yahoo.com> - 2011-09-06 18:07 -0500
      Re: dynamic_cast and generic pointer Joe Greer <jgreer@doubletake.com> - 2011-09-08 14:45 +0000
  Re: dynamic_cast and generic pointer Asger-P <junk@asger-p.dk> - 2011-09-07 01:08 +0200
  Re: dynamic_cast and generic pointer Paavo Helde <myfirstname@osa.pri.ee> - 2011-09-07 00:02 -0500
  Re: dynamic_cast and generic pointer Juha Nieminen <nospam@thanks.invalid> - 2011-09-07 06:22 +0000
    Re: dynamic_cast and generic pointer Goran <goran.pusic@gmail.com> - 2011-09-07 04:16 -0700
      Re: dynamic_cast and generic pointer BGB <cr88192@hotmail.com> - 2011-09-08 23:17 -0700

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