Re: Macks - adding unit constants?

[Jacob Sparre Andersen <sparre@crs4.it>]

Christoph Grein wrote:

> Why not:
> 
>    Dist: constant Meter := +0.000_86;

Because that converts a dimensionless number to a dimensioned number, 
and you can't do that (in physics).

> Or use Dmitry Kazakov's or my method:
> 
>   Dist: constant SI := 0.000_86 * Meter;
> or
>   Dist: constant SI := 0.86 * Milli * Meter;

This is in some ways more to my taste.  Here there are no conversions of 
dimensionless numbers to dimensioned numbers.  But I prefer the 
compile-time checking I get with Macks to the run-time checking implied 
in the above examples.

Jacob
-- 
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