Claudio Cesar de Sá wrote:
> 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 << "_" << " ";
> }
> }
> 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.
You have to iterate over the whole matrix to determine if it is assigned. Or
you change your output, like this (assuming the matrix is over BoolVars):
if (matrix(i,j).one()) os << j << " "; else if (matrix(i,j).zero()) os << "_ ";
else os << "? ";
Cheers,
Guido
--
Guido Tack, http://people.cs.kuleuven.be/~guido.tack/
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