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Re^4: If I was forced to use only one kind of loop for the rest of my days it would be a

by Anonymous Monk
on Sep 30, 2005 at 15:28 UTC ( [id://496447]=note: print w/replies, xml ) Need Help??


in reply to Re^3: If I was forced to use only one kind of loop for the rest of my days it would be a
in thread If I was forced to use only one kind of loop for the rest of my days it would be a

(define a (list 1 2 3)) (set-cdr! a a) (for-each (lambda (x) (display "hello world\n")) a)

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Re^5: If I was forced to use only one kind of loop for the rest of my days it would be a
by ambrus (Abbot) on Sep 30, 2005 at 15:59 UTC

    Please read what I said in the parent node.

    That's not a proper list, so r5rs doesn't guarantee this will work. It does work with some scheme implementations, but MzScheme says

    for-each: expects type <proper list> as 2nd argument, given: #0=(1 . # +0#); other arguments were: #<procedure:STDIN::59>
    if I type this code in it.

    Update: let me quote from the r5rs.

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