Re: Choose between class implementations at compiletime

From:

"Alf P. Steinbach" <alfps@start.no>

Newsgroups:

comp.lang.c++

Date:

Sat, 12 Sep 2009 04:08:42 +0200

Message-ID:

<h8evre$o6m$1@news.eternal-september.org>

* Tech07:

AnonMail2005@gmail.com wrote:

On Sep 11, 10:11 am, "Alf P. Steinbach" <al...@start.no> wrote:

That's a Java technique.

In short, transferring Java patterns uncritically to C++ isn't a
good idea.

I never mentioned anything about Java. ABC and factory are common
design patterns that are used in C++ and many other languages.

Indeed. Programming with interfaces existed way before Java did. How far
back the origins of the technique go, I don't know. Probably from the '60's,
where all other concepts being used in programming languages today came from
;).

The context here is, quote, to support "every platform".

Using a factory to provide platform independence is a Java technique.

While AnonMail2005 didn't mention the word "Java", after first providing
sensible advice he then recommended an unsuitable-for-C++ Java technique.

It is unsuitable because for C++ you do not, in general, provide the same
executable for different platforms, as can be the case with Java.

With C++ you provide different executables for different platforms. Get it?

Cheers & hth.,

- Alf