correct sign/1 (#216)

2019-10-27 14:18:32 -06:00
parent 67a00e4deb
commit 0dcd9e5805
2 changed files with 4 additions and 3 deletions
--- a/src/prolog/machine/machine_state_impl.rs
+++ b/src/prolog/machine/machine_state_impl.rs
@@ -1381,9 +1381,9 @@ impl MachineState {
        if n.is_positive() {
            Integer::from(1)
        } else if n.is_negative() {
-            Integer::from(0)
-        } else {
            Integer::from(-1)
+        } else {
+            Integer::from(0)
        }
    }