Christophe Rhodes  <csr21@cam.ac.uk> wrote:
+---------------
| rpw3@rpw3.org (Rob Warnock) writes:
| >     cmu> (time (nth (1- most-positive-fixnum) '#1=(t . #1#)))
| >     ;   0.0 seconds of real time
| > Now that's *really* weird! Is CMUCL's *compiler* somehow detecting
| > that the circularity implies a constant result?
| 
| No, the circularity has nothing to do with it.  It's detecting that
| both (1- most-positive-fixnum) and (quote <anything>) are constants,
| and CL:NTH is a known function with defined semantics, so it's
| constant-folding the call at compile-time.
+---------------

*DOH!!*

Thanks, that also explains the long silence (much longer on the
slower machine!) that I saw between the "Compiling LAMBDA NIL:"
and "Compiling Top-Level Form:" messages...  ;-}  ;-}


-Rob

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