Maxima -- GPL CAS based on DOE-MACSYMA / Bugs / #2357 is("string">0) causes lisp error

Computer Algebra System written in Common Lisp

#2357 is("string">0) causes lisp error

Milestone: None

Status: open

Owner: nobody

Labels: is (10) predicates (6)

Priority: 7

Updated: 2025-05-12

Created: 2012-02-16

Private: No

is("string">0) should do something other than halt with a lisp
error message.
Occurs in maxima 5.25.1, 5.26.0, sbcl, gcl

Discussion

John Lapeyre - 2012-02-16

priority: 5 --> 7
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David Scherfgen - 2025-05-11

status: open --> closed
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David Scherfgen - 2025-05-11

Returns false in current Maxima, which I think is OK. Closing ticket.

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Stavros Macrakis - 2025-05-12

I disagree. This should cause a Maxima error, since comparing a number and a string is undefined.b

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Stavros Macrakis - 2025-05-12

status: closed --> open
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