Subject:
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Re: legOS and alternate operating systems [now off topic]
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 30 Dec 1998 23:11:51 GMT
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Original-From:
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Ben Laurie <BEN@ALGROUP.COspamcake.UK>
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Viewed:
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3566 times
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Norman Fair wrote:
>
> Actually, this does concern Legos programming. There is only so much
> memory in the RCX, so you have to program very efficiently. You have to be
> able to squeeze a program in there.
>
> What I meant in my previous post is, when you linked in a "traditional"
> library it only linked the routines you actually used, not the entire
> library. But with object oriented you link in the entire class, even if
> you only use one or two methods.
I don't believe this claim.
> Plus you have to link in all the classes
> that the class you are using is inherited from. That can be a great deal
> of overhead.
It can be - but actually you only have to link in what you use, you have
to _include_ what you inherit from, but if you don't use it, you don't
link it.
> The typical "Hello world" program for Windows using C is only
> a couple kilobytes, about the same as a DOS version. If you write it in
> C++ (worse yet, with Windows wrapping classes such as Microsoft Foundation
> Classes), your program will start with at least 100k or more of size.
Again, I don't believe this. If I write:
cout << szString;
that needs _less_ code than:
printf("%s",szString);
since in the latter case I get all the stuff for printing integers,
floats, and what-all as well as the stuff I wanted, for printing
strings.
Cheers,
Ben.
--
Ben Laurie |Phone: +44 (181) 735 0686| Apache Group member
Freelance Consultant |Fax: +44 (181) 735 0689|http://www.apache.org/
and Technical Director|Email: ben@algroup.co.uk |
A.L. Digital Ltd, |Apache-SSL author http://www.apache-ssl.org/
London, England. |"Apache: TDG" http://www.ora.com/catalog/apache/
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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