[Maxima-bugs] [ maxima-Bugs-854825 ] is(feat(sym)) internal error

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Bugs item #854825, was opened at 2003-12-05 09:03
Message generated for change (Comment added) made by robert_dodier
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>Category: Lisp Core
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Stavros Macrakis (macrakis)
Assigned to: Nobody/Anonymous (nobody)
Summary: is(feat(sym)) internal error

Initial Comment:
(C1) declare(feat,feature);
(D1) 				     DONE
(C2) declare(sym,feat);
(D2) 				     DONE
(C3) is(feat(sym));

Error: -2147483647 is not of type LIST.
Error signalled by QUEUE+P.

Maxima 5.9.0 on gcl 2.5.0 mingw32 W2k Athlon


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>Comment By: Robert Dodier (robert_dodier)
Date: 2006-07-18 21:28

Message:
Logged In: YES 
user_id=501686

Still observed in 5.9.3cvs.

By the way the way to use a user-defined feature is via
featurep, e.g.

  featurep (sym, feat); => true


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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=104933&aid=854825&group_id=4933