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I am currently using DrRacket on Mac OS X and choose the language “R5RS”, but when I enter
(random 100)
I get the error message:
reference to undefined identifier: random
What’s the problem here? Is it caused by a missing package?
Is ‘random‘ a function provided by R5RS? I look for it in the index of the spec, but I don’t see it there. R5RS is a minimal language mode, and when Racket is in R5RS mode, it really restricts itself.
Racket does have a native random function. If you are using ‘#lang racket‘, it’s automatically available. Is there a reason you’re using the R5RS language mode?