Re: defining new character names?

[Matthias Koeppe]

address@hidden writes:

> On Wed, Aug 21, 2002 at 10:51:38AM +0200, Matthias Koeppe wrote:
>> If you want to create a named constant, you simply do
>> 
>>    (define error-message "Error")
>>    (define scaled-pi 314159265)
>
> No. 'error-message' is not constant after that:
>
>    (set! error-message 'moep?)

Don't do that then.  (What was your point?)

A named constant simply is a variable that you promise not to change.
I proposed a DEFINE-CONSTANT special form that makes the promise more
explicit.

Regards,

-- 
Matthias Köppe -- http://www.math.uni-magdeburg.de/~mkoeppe