Tracking the farthest failure position in case of a regular fail

1 files changed, 4 insertions, 0 deletions

diff --git a/lptypes.h b/lptypes.h
index dc4ada6..81f0fdc 100644
--- a/lptypes.h
+++ b/lptypes.h
@@ -161,6 +161,10 @@ typedef Charset Labelset;
 #define IDXLFAIL 0
 
 #define LFAIL 0
+
+/* update the farthest failure */
+#define updatefarthest(s1,s2) { if ((s2) > (s1)) s1 = s2; }
+
 /* labeled failure end */
 
 #endif