[GAP Forum] gap little bug in version 4.5.2

[Max Horn]

Dear Ilko Brauch,

thank you for your very helpful bug report. Indeed, there was a regression in our code, which I just fixed in the development version of GAP. So the problem should be resolved in the next GAP release.

Cheers,
Max

Am 16.12.2011 um 00:44 schrieb Ilko Brauch:

[...]
> 
> # editing the following two lines of code:
> 
> G := CyclicGroup(IsFpGroup,3);
> Elements(G);
> 
> # lead to the following error message:
> 
> Error, List Element: <list>[2] must have an assigned value in
>  if e[2] >= 0 and e[2] < n  then
>    return u;
> elif e[2] mod n = 0  then
>    return One( f );
> else
>    e := [ e[1], e[2] mod n ];
>    return ObjByExtRep( fam, e );
> fi; called from
> f( UnderlyingElement( x ) ) called from
> com( left ) called from
> FpElmComparisonMethod( FamilyObj( left ) )( left, right ) called from
> IS_SSORT_LIST_DEFAULT( list ) called from
> IsSSortedList( l ) called from
> ...  at line 2 of *stdin*
> you can 'return;' after assigning a value
> 
> 
> # The code works without problems with the following older version:
> 
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> GAP, Version 4.5.1 of 15-Apr-2011
> Architecture: i686-pc-linux-gnu-gcc-default32
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 
> 
> Finally I hope that I sent this message to the right place and that it will not waste to much of your time.
> 
> 
> Kind regards
> 
> Ilko
> 
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