--- a/regexParser/transition.cc	Wed Dec 23 15:41:27 2015 +0900
+++ b/regexParser/transition.cc	Wed Dec 23 17:28:59 2015 +0900
@@ -7,7 +7,7 @@
             return stateArray;
         }
         if (stateArray->next == NULL) {
-            StatePtr s = createState(state,state->bitState);
+            StatePtr s = createState(state->bitState);
             stateArray = appendState(stateArray,s);
             return stateArray;
         }
@@ -16,17 +16,16 @@
     return stateArray;
 }
 
-StatePtr createState(StatePtr state,BitVector bi) {
-    StatePtr s = state;
-    state = NEW(State);
+StatePtr createState(BitVector bi) {
+    StatePtr state = NEW(State);
     state->bitState = bi;
     state->transition = NEW(Transition);
     state->nextNode = NEW(Node);
-    return s;
+    return state;
 }
 
 StatePtr appendState(StatePtr x,StatePtr y) {
-    StatePtr x0 = createState(x,x->bitState);
+    StatePtr x0 = createState(x->bitState);
     StatePtr x1 = x0;
     for(;;) {
         if (x->next == NULL) {
@@ -34,7 +33,7 @@
             return x0;
         }
         x = x->next;
-        x1->next = createState(x,x->bitState);
+        x1->next = createState(x->bitState);
         x1 = x1->next;
     }
     return x0;