Re: rotatef mystery

Ken Tilton wrote:
Saw this in the doc for rotatef, don't get it:

"If a place produces more values than there are store variables, the extra values are ignored. If a place produces fewer values than there are store variables, the missing values are set to nil. "

OK: (rotatef x y z)

How does a place, say, y produce more values than there are store variables?!

(rotatef (value x x1) (values) y)


Pascal

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Relevant Pages

  • Re: rotatef mystery
    ... Ken Tilton writes: ... "If a place produces more values than there are store variables, ... (defun (setf fun) ... (I don't know how y will behave in rotatef, no time now to find out). ...
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  • Re: rotatef mystery
    ... Pascal Costanza wrote: ... If a place produces fewer values than there are store variables, the missing values are set to nil. ... Closer to MOP & ContextL: http://common-lisp.net/project/closer/ ...
    (comp.lang.lisp)