Navigable & RedBlackTreeSet

src/main/resources/speiger/assets/collections/templates/functions/Comparator.template

@@ -34,4 +34,26 @@ public interface COMPARATOR extends Comparator<CLASS_TYPE>
 		Objects.requireNonNull(c);
 		return (K, V) -> c.compare(KEY_TO_OBJ(K), KEY_TO_OBJ(V));
 	}
+	
+	public default COMPARATOR reversed() {
+		return new Reversed(this);
+	}
+	
+	static class Reversed implements COMPARATOR
+	{
+		COMPARATOR original;
+		
+		public Reversed(COMPARATOR original) {
+			this.original = original;
+		}
+		
+		public int compare(KEY_TYPE o1, KEY_TYPE o2) {
+			return original.compare(o2, o1);
+		}
+		
+		@Override
+		public COMPARATOR reversed() {
+			return original;
+		}
+	}
 }