Re: Book and variables -- lost how to remedy

[Urs Liska]

Am 11. November 2016 21:02:34 MEZ, schrieb Noeck <address@hidden>:
>
>
>Am 11.11.2016 um 20:42 schrieb Bernhard Kleine:
>> #(define-void-function (name val)(symbol? not-null?)
>
>It looks to me as if "not-null?" does not exist in guile. There is
>not-pair? and there is null? But not not-null? It works with not-pair?
>but that's probably not the right answer.
>
>Unfortunately, I can't tell you what the correct replacement would be.

I think scheme? should be fine as you can bind any scheme value to a variable. 

Urs

>
>Cheers,
>Joram
>
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