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Hi,
It's difficult to say anything without knowing more about your code.
For instance, what is ci?

Angelo Tardugno wrote:
> Hi all,
>
> it seems like the circulator is not actually circulating, I've done a 
> simple test:
>
> Edge e(*ci, v_ind1, ((v_ind1+i)%4) );
>                     cc=T.incident_cells(e);
>                     
> cc_end=T.incident_cells(Edge(*ci,v_ind1,((v_ind1+i)%4)));
>                    
>                     cout << "------------------" << endl;
>                     cout << (cc==cc_end) << endl;
>                     cc++;
>                     cout << (cc==cc_end) << endl;
>                     cc++;
>                     cout << (cc==cc_end) << endl;
>                     cc++;
>                     cout << (cc==cc_end) << endl;
>                     cc++;
>                     cout << (cc==cc_end) << endl;
>                     cc++;
>                     cout << (cc==cc_end) << endl;
>                     cc++;
>                     cout << (cc==cc_end) << endl;
>                     cc++;
>                     cout << (cc==cc_end) << endl;
>                     cc++;
>                     cout << (cc==cc_end) << endl;
>                     cc++;
>                     cout << (cc==cc_end) << endl;
>                     cc++;
>                     cout << (cc==cc_end) << endl;
>                     cc++;
>                     cout << " ------------------------" << endl;
>
> and the output gives me something like this....
>
> -------------------------------
> 1
> 0
> 0
>
> and then the program crashes. It seems like the circulator is not doing 
> its job properly....
>
> Any idea?
>
> Thanks
>
> Angelo