Can someone explain why this example from the Racket Guide allows a
re-definition of a constant but the second case (not from the Racket
Guide) gives an error. Both are executed in the interactions window of
DrRacket.
Many thanks,
Harry
> (compile-enforce-module-constants #f)
> (module m2 racket
(provide pie)
(define pie 3.141597))
> (require 'm2)
> (module m2 racket
(provide pie)
(define pie 3))
> pie
3
>
BUT
> (compile-enforce-module-constants #f)
> (module m2 racket
(provide pie)
(define pie 3)
(define pie 4))
.
gives the error: module: duplicate definition for identifier in: pie
>
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