IMO, you will have to see what's done by each implementation, and use implementation specific, perhaps even internal functions to get that information.
This would be a good subject for a CDR, to provide a public introspective API.
--
__Pascal Bourguignon__
On 08/10/2012, at 15:28, Didier Verna
didier@lrde.epita.fr wrote:
>
> Hello,
>
> I cannot find a standard way to figure out whether a setf expander has
> been defined for a symbol FOO (via either DEFSETF or
> DEFINE-SETF-EXPANDER).
>
> Is there one? Otherwise, I would also be happy with an SBCL-only
> solution.
>
>
> Thank you !
>
> --
> Resistance is futile. You will be jazzimilated.
>
> Scientific site:
http://www.lrde.epita.fr/~didier
> Music (Jazz) site:
http://www.didierverna.com
>
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