Re: Macks - adding unit constants?

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

Stephen Leake wrote:

> Exception for user interfaces, you should only use one length unit in
> your code;

When it comes to my current problem I agree, but I am not sure I do it 
in general.

 > it might as well be meter (m).

It is very impractical to have to remember to write "0.000_86" and not 
"0.86", when you put constants in your code.  I prefer to have to write 
"0.000_86 * m" (or "0.86 * mm") so there is an explicit conversion from 
nondimensional to dimensional units.  Since this preference is rather 
strong, I have decided to use a hand-written units package for this project.

Later I will hopefully get time to make a modified version of Macks that 
suits my views of how to handle units in Ada.

 > Anything else leads to
> confusion.

It depends on how you do it.

Jacob (who views Ada code as a very important user interface)
-- 
"If you think Tuck has said something that is completely
  wrong, you are almost certainly missing something :-)"