Am 11.11.2016 um 21:11 schrieb Urs Liska: > > Am 11. November 2016 21:02:34 MEZ, schrieb Noeck <[email protected]>: >> >> 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 > Could you please make a concrete proposition?
thanks Bernhard
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