Add variance indicator to type.

[SXSI/xpathcomp.git] / src / node.ml

diff --git a/src/node.ml b/src/node.ml
index 78f0899..abf75a4 100644 (file)
--- a/src/node.ml
+++ b/src/node.ml
@@ -1,4 +1,4 @@
-type 'a t = int
+type +'a t = int
 
 
 let nil = ~-1