[isabelle-dev] Failure in AFP when switching from polyml-5.6-1 to polyml-test-7a7b742897e9

David Matthews dm at prolingua.co.uk
Thu Dec 8 17:41:18 CET 2016

On 08/12/2016 15:01, Florian Haftmann wrote:
> Hi all,
> when testing polyml-test-7a7b742897e9 I found out that this breaks
> session Algebraic_Numbers in the AFP:
> *** At command "value" (line 42 of
> "/mnt/home/haftmann/data/tum/afp/devel/thys/Algebraic_Numbers/Algebraic_Number_Tests.thy")
> *** exception Div raised (line 302 of "./basis/InitialBasis.ML")
> It looks like a change in the semantics of integer division in PolyML,
> but this is entirely speculative.

No, it was a bug in the testing version of Poly/ML.  Thanks for pointing 
it out and in particular including the line number which allowed me to 
see immediately what was wrong.  Hopefully the commit I've just pushed 
will have fixed it.


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