Hello,
I am new to Gecode (and to constraints programming for the most part),
and am using Gecode/J 2.1.1. My question relates to undefined variables.
I have a simple example where I have 2 arrays of Integer Variables which
may take on a 0 or 1. And a basic constraint saying that none of the
variables are equal. I am getting 4 results which all have their
variables as printed as [0..1]. The fact that I am getting 4 value is
valid ([0, 0] [1, 1]; [0, 1] [1, 0]; [1, 0], [0, 1]; [1, 1] [0, 0]), but
I cannot see the actual values. I have attached my code to the bottom of
this message, is there any way I can force the actual values to be
displayed (or defined)?
Thanks,
Jorge
///////////code:
import org.gecode.BABIterator;
import org.gecode.BExpr;
import org.gecode.Gecode;
import org.gecode.GecodeEnumConstants;
import org.gecode.IntRelType;
import org.gecode.IntVar;
import org.gecode.Space;
import org.gecode.VarArray;
public class GecodeTest extends Space {
public VarArray<IntVar> test;
public VarArray<IntVar> test_mut;
public GecodeTest() {
super("GecodeTest");
test = new VarArray<IntVar>(this, 2, IntVar.class, 0, 1);
test_mut = new VarArray<IntVar>(this, 2, IntVar.class, 0, 1);
for(int i = 0; i < 2; i++){
Gecode.post(this, new BExpr(test.get(i), IntRelType.IRT_NQ,
test_mut.get(i)));
}
Gecode.branch(this, test, GecodeEnumConstants.INT_VAR_MAX_MIN,
GecodeEnumConstants.INT_VAL_MAX);
Gecode.branch(this, test_mut, GecodeEnumConstants.INT_VAR_MAX_MIN,
GecodeEnumConstants.INT_VAL_MAX);
}
public GecodeTest(Boolean share, GecodeTest gecodeTest){
super(share, gecodeTest);
test = new VarArray(gecodeTest.test);
test_mut = new VarArray(gecodeTest.test_mut);
}
public static void main(String[] args){
GecodeTest test = new GecodeTest();
BABIterator<Space> iterator = new BABIterator(test);
Space s = null;
try{
while(iterator.hasNext()){
s = iterator.next();
System.out.println(s);
}
} catch(Exception e){
}
}
}
---- and the output I see is the following:
GecodeTest:
test=[[0..1],[0..1]]
test_mut=[[0..1],[0..1]]
GecodeTest:
test=[[0..1],[0..1]]
test_mut=[[0..1],[0..1]]
GecodeTest:
test=[[0..1],[0..1]]
test_mut=[[0..1],[0..1]]
GecodeTest:
test=[[0..1],[0..1]]
test_mut=[[0..1],[0..1]]
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