[Help-glpk] New statements (solve; printf, if, for, etc.)

[Marcos Roberto Silva]

Hello list,

I am learning and testing the new statements of the 4.6 version, and in my test I was not able to print i , j and k only if x[i,j,k] =1.

The code used was:

printf("\nFlow Assignment: ");
for {i in I}
{
        for {j in J}
        {
                for {k in K} printf "\nThe flow from %d to %d is via hub %d.", if x[i,j,k] then i,j,k;
        }
}


With this code, the output print  all the cases.

What's wrong?

Thanks.

Regards,

Marcos Roberto Silva