Add comparison predicates

1 files changed, 4 insertions, 3 deletions

diff --git a/dat.h b/dat.h
index a090afb..2cf28b7 100644
--- a/dat.h
+++ b/dat.h
@@ -40,17 +40,18 @@ struct Choicepoint
 	Choicepoint *next;
 };
 
+/* Sorted so that a lower value means it comes earlier in the standard ordering */
 enum {
-	CompoundTerm,
-	AtomTerm,
 	VariableTerm,
 	NumberTerm,
 	StringTerm,
+	AtomTerm,
+	CompoundTerm,
 };
 
 enum {
-	NumberInt,
 	NumberFloat,
+	NumberInt,
 };
 
 int debug;