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- To: (BUG LISP) at MIT-MC
- From: JPG at MIT-MC (Jeffrey P. Golden)
- Date: Mon, 8 Jan 79 09:23:00 GMT
- Cc: DCP at MIT-MC, JPG at MIT-MC
- Original-date: 8 JAN 1979 0423-EST
Typing to MACSYMA's LISP:
(EQTEST (GET 'MPLUS 'MSIMPIND) '((FOO)))
leads to ;EVAL-WHEN error from location 72384
;program trapped while in EQTEST .
The message is printed out by MACSYMA's MACHINE-ERROR handler
(called MACHERRFUN). MACSYMA is indeed trying to RPLACA pure
structure here (MSIMPIND is a purified property), but EVAL-WHEN
is the wrong type error.