bugAxiom Computer Algebra System - Bugs: bug #5977, x^2+1::DMP([x],INT)


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bug #5977: x^2+1::DMP([x],INT)

Submitter:  Bill Page <billpage1>
Submitted:  Wed 15 Oct 2003 05:34:07 AM UTC
Category:  algebra Severity:  3 - Normal
Item Group:  code bug Status:  Fixed
Privacy:  Public Assigned to:  None
Originator Name:  Bill Page Open/Closed:  Open
Release:  alpha pre-release September 2003 CVS Reproducibility:  None
Fixed Release:  20031110
Error message: 

>> System error:

  Caught fatal error (memory may be damaged)
protected-symbol-warn called with (NIL)

Example of code trigerring the bug: 


Internal cause: 

Perhaps a problem with interpreter's coerce logic for DistributedMultivariatePolynomial?

Mon 27 Dec 2004 01:07:00 PM UTC, comment #2: 

(x^2+1)::DMP([x],INT) works
1::DMP([x],INT) works
(x^2) + 1::DMP([x],INT) fails

Tim Daly <axiom>
Group administrator
Wed 12 Nov 2003 03:50:32 AM UTC, comment #1: 
[Fix (i.e. patch)]

all cases work now

Tim Daly <axiom>
Group administrator
Wed 15 Oct 2003 05:34:07 AM UTC, original submission:  

x^2+1::DMP([x],INT)  => fails
x^2+1::HDMP([x],INT) => fails
x^2+1::UP(x,INT)     => works
x^2+1::POLY INT      => works
(x^2)::DMP([x],INT)+1::DMP([x],INT)  => works

Bill Page <billpage1>
Group Member


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Follow 4 latest changes.

Date Changed by Updated Field Previous Value => Replaced by
2004-12-27 axiom Open/ClosedClosed Open
2003-11-12 axiom StatusNone None
    Open/ClosedOpen None
    Fixed Release

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