From:	Charles Krug <charles AT mail DOT pentek DOT com>
Newsgroups:	comp.lang.c++,comp.os.msdos.djgpp
Subject:	Re: How to implement "They are all Vectors, but different realities?"
Date:	Thu, 21 Jan 1999 09:55:51 -0500
Organization:	Pentek Corporation
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Shue-Cheng CHEN wrote:

> Hi!
>
>      We know "Force" and "Velocity" are both "Vectors" in mathematics, so
> I defined them to own all behaviors and data of Vector (has been defined),
> without duplicating the code, as follows,

First, look into valarray<T> from the standard library.  That should have the
Vector functions you need to do vector math.

From that, simply use:

class Force : public valarray
{
;
}
class Velocity : public valarray
}
;
}

That way, if you attempt to mix Force and Velocity, the compiler will complain.


Charles

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