On Sat, May 26, 2012 at 5:20 PM, Antonio Bonifati <
antonio.bonif...@gmail.com> wrote:
> What am I doing wrong? Does the (trace) macro accept lists, doesn't it?
>
No, this is just a legacy option which is not used by the current
interpreter. The original interpreter was based on a code performing list
traversal; the current one is a bytecodes compiler which has the option to
step through code, but this has to be told at compilation time. The :step
option could be reimplemented by forcing the function to be re-compiled,
though.
> BTW the equivalent and very similar option in another Lisp (GNU CLISP)
> works:
> (trace (factorial :step-if t))
>
That does not mean much. GCL has a totally different (and slower)
interpreter.
Juajo
--
Instituto de Física Fundamental, CSIC
c/ Serrano, 113b, Madrid 28006 (Spain)
http://juanjose.garciaripoll.googlepages.com
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