Re: Dimensionality Checking (Ada 20XX)

[James Rogers <jimmaureenrogers@worldnet.att.net>]

Mark Lundquist wrote:
> 
> Would you not prefer a solution in which no particular set of units was
> built in to the core language?  That is, I think it would be fine if the
> standard library had a package Ada.SI_Units or whatever, written in ordinary
> Ada 20xx (a unit-aware language), just to save everyone the trouble of
> writing it themselves, but I don't think that the core language itself
> should have any intrinsic units.  Please comment!

I agree. The basic language capability of units should not declare any
particular set of units.

The SI_Units package proposed can be useful, but also terribly limiting.
The chosen units would be inappropriate for calculations dealing with
submolecular physics, or astronomy. Neither of these fields should be
systematically ignored by Ada.

Jim Rogers
Colorado Springs, Colorado USA