Re: Question on types conversions - operations

[stefan-lucks@see-the.signature]

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> Jean-Pierre Rosen wrote:
> > sjw a �crit :
> > > > With S := Speed(Float(L) / Float(T)) ? Mmmm ... not nice.

> > Why not nice? 
[...]

> I thought it was not nice, because if I change the three types
>  Length, Time and Speed from Float to My_Float, then I have to modify:
> S := Speed(My_Float(L) / My_Float(T))

Indeed! Better, you start with My_Float at the beginning

    type My_Float is new Float; -- change this, if you need
    type Length is new My_Float;
    type Time   is new My_Float;
    type Speed  is new My_Float;

and later write 

    S := Speed(My_Float(L) / My_Float(T));

This is logically the same as before, but you can change the definition of 
My_Float to whatever kind of floating-point operation you like ... 

So long

Stefan







-- 
------ Stefan Lucks   --  Bauhaus-University Weimar  --   Germany  ------
               Stefan dot Lucks at uni minus weimar dot de
------  I  love  the  taste  of  Cryptanalysis  in  the  morning!  ------