Re: C++ Abstract Factory Implementation

From:

Suresh <suresh_rai@ymail.com>

Newsgroups:

comp.lang.c++

Date:

Wed, 9 Jul 2008 21:25:23 -0700 (PDT)

Message-ID:

<00c533a7-107e-4bb8-a41c-93ed4584df41@m73g2000hsh.googlegroups.com>

On Jul 9, 11:09 pm, Gianni Mariani <gi4nos...@mariani.ws> wrote:

Suresh wrote:

On Jul 9, 7:59 am, Ian Collins <ian-n...@hotmail.com> wrote:

Suresh wrote:

Hello
I am hoping someone can give me very needed help.

Please stop asking the same question over and over.

--
Ian Collins.

I am very apologetic for multiple asking. This was not my intendings.
It was mistake and I have removed duplications.
I have decided to use first Papa Factory. It is with very good
documentation and just few .h files.
Austria for me now is difficult I not have enough experience. Book b=

Andrei Alexandrecu is too much advanced for now too. But I think Papa
Factory is no support for multi-thread, but this is fine for now.

You said Austria C++ is difficult ?

I'd really love to know what you think is difficult. Below is an
example of a simple no constructor parameters case.

#include "at_factory.h"

class Interface {

};

int main()
{
Interface * n2 = at::FactoryRegister< Interface, char >::Create=

(2)();

// n2 should really be an instance of Impl2

}

// this below can be in other linked in compile units
class Impl1 : public Interface {};

AT_MakeFactory0P( 1, Impl1, Interface, int);

class Impl2 : public Interface {};

AT_MakeFactory0P( 2, Impl2, Interface, int);

Please let me know what is so hard.

This Library is very powerful but I try to read the documentation but
is very complicated.
I do not think I need so powerful Library. Papa Factory is with
tutorial to make easy everything for beginer.
And Austria Factory is big because it is so powerful with smart
pointers.