Hi,
Am Montag, den 14.09.2009, 15:35 +0200 schrieb Bill Allombert:
> On Mon, Sep 14, 2009 at 11:02:27AM +0200, Joachim Breitner wrote:
> > Package: gap
> > Version: 4r4p12-1
> > Severity: normal
> >
> > Hi,
> >
> > I’m not sure if this is really a bug or a mistake on my side, but
> > “panic” sounds like a bug. I produced it like this:
> >
> >
> > gap> G := GL(4,2);
> > gap> SG := Group(Filtered(G, m -> Z(2)*[1,1,1,1]*m=Z(2)*[1,1,1,1]));
> > gap> rcs := RightCosets(G,SG);;
> > gap> rcs[1];
> > Panic: tried to print a path of unknown type '72' at
> > Print( "Group(", l, ")" );
> > RightCoset(Group(~[6]gap>
>
> I cannot reproduce it on my machine (amd64).
> If you can reproduce it, please do
> SaveWorkspace("bug546579");
> just after "rcs := RightCosets(G,SG);;"
> and send me the file 'bug546579'.
indeed, it is not reproducible that easy. It seems that you need to do a
little bit more:
gap> G := GL(4,2);
gap> SG := Group(Filtered(G, m -> Z(2)*[1,1,1,1]*m=Z(2)*[1,1,1,1]));
gap> rcs := RightCosets(G,SG);;
gap> rcs[1];
# Now Ctrl-C while it’s scrolling through, and enter rcs[1]; again:
^Cuser interrupt at
return;
called from
Print( "Group(", l, ")" ); called from
Print( "RightCoset(", ActingDomain( d ), ",", Representative( d ), ")" );
called from
Print( "Group(", l, ")" ); called from
Print( "RightCoset(", ActingDomain( d ), ",", Representative( d ), ")" );
called from
ViewObj( list[i] ); called from
...
Entering break read-eval-print loop ...
you can 'quit;' to quit to outer loop, or
you can 'return;' to continue
brk>
]gap> rcs[1];
Panic: tried to print a path of unknown type '72' at
Print( "Group(", l, ")" );
RightCoset(Group(~gap>
At this point, the error message is repeatable by entering "rcs[1];".
Is that reproducible for you now?
Greetings,
Joachim
--
Joachim "nomeata" Breitner
Debian Developer
[email protected] | ICQ# 74513189 | GPG-Keyid: 4743206C
JID: [email protected] | http://people.debian.org/~nomeata
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