2 files changed, 7 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index d80ad45a..3dd611a7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2009-11-17  Kaz Kylheku  <kkylheku@gmail.com>
 
+	* regex.c (nfa_all_states, nfa_closure): visited parameter
+	should be unsigned.
+
+2009-11-17  Kaz Kylheku  <kkylheku@gmail.com>
+
 	Fixes for compliance to C89.
 
 	* lib.c (init): Do not define variable after statements.
diff --git a/regex.c b/regex.c
index 341a9d3d..787e23b8 100644
--- a/regex.c
+++ b/regex.c
@@ -716,7 +716,7 @@ nfa_t nfa_compile_regex(obj_t *items)
   }
 }
 
-int nfa_all_states(nfa_state_t **inout, int num, int visited)
+int nfa_all_states(nfa_state_t **inout, int num, unsigned visited)
 {
   int i;
 
@@ -795,7 +795,7 @@ void nfa_free(nfa_t nfa)
  * (Transitions that don't do not consume and match an input character).
  */
 int nfa_closure(nfa_state_t **stack, nfa_state_t **in, int nin,
-                nfa_state_t **out, int visited, int *accept)
+                nfa_state_t **out, unsigned visited, int *accept)
 {
   int i, nout = 0;
   int stackp = 0;