implement BitMask.apply()

diff --git a/src/edu/berkeley/fleet/util/BitMask.java b/src/edu/berkeley/fleet/util/BitMask.java
index e607b07..dfc4f8b 100644 (file)
--- a/src/edu/berkeley/fleet/util/BitMask.java
+++ b/src/edu/berkeley/fleet/util/BitMask.java
@@ -20,7 +20,7 @@ public class BitMask {
     }
 
     public BitVector apply(BitVector bv) {
-        throw new RuntimeException("not implemented");
+        return ones.or(bv).and(zeroes.not());
     }
 
     public boolean test(BitVector bv) {