[gecode-users] Gist in bab or restart search, abnormal exit in red nodes

[Claudio Cesar de Sá]

Hi

Thanks, really  it was the problem ... I fix it with a *try ... catch*, once
that I want a formatted output ... so the code is such like:

...................................................
try
    {

  for (int i = 0; i < mat_size; i++) {
    os << "\n" << i << "|"  ;
    for (int j = 0; j < mat_size; j++) {
      os.width(1);
      //os <<  matrix(i,j) << "  ";
      if ( matrix(i,j).val() == 1 )
    os <<  j << " ";
      else
    os << "_"  << " ";
    }
  }

    }


  catch(std::exception &e)
    {
      std::cerr << "\n" << e.what()
        << "\t  PRINT OUTPUT: NON DEFINITION for MATRIX YET" << std::endl;
     }
.............................................................................................................................

So, now in blue and red nodes .... the gist's message is:

BoolVar::val: Attempt to access value of unassigned variable      PRINT
OUTPUT: NON DEFINITION for MATRIX YET


Is there any alternative or better for this solution? Is there any function
to check if all the values of a variable are already instancied/assigned? In
this case,   the variable is a matrix.

Thanks




2010/6/28 Mikael Zayenz Lagerkvist <zayenz at gmail.com>

> Hi,
>
> The problem is that you try to inspect unassigned variables using the
> val()-member in your code. See the marked part of the error message
> below to know what to look for.
>
> 2010/6/28 Claudio Cesar de Sá <claudio at colmeia.udesc.br>:
> > (<unknown>:3284): GLib-GObject-WARNING **: IA__g_object_set_valist:
> object
> > class `GtkMenuItem' has no property named `label'
> >
> > (<unknown>:3284): GLib-GObject-WARNING **: IA__g_object_set_valist:
> object
> > class `GtkCheckMenuItem' has no property named `label'
> > terminate called after throwing an instance of
> > 'Gecode::Int::ValOfUnassignedVar'
> >   what():  BoolVar::val: Attempt to access value of unassigned variable
>     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> See also a previous discussion on errors thrown when using Gist:
> http://article.gmane.org/gmane.comp.lib.gecode.user/2858
>
> Cheers,
> Mikael
>
>
> --
> Mikael Zayenz Lagerkvist, http://www.ict.kth.se/~zayenz/<http://www.ict.kth.se/%7Ezayenz/>
>



-- 
claudio
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