X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=action.h;h=dd7de7a1ec2ca17f6081708d77758577e74777d7;hb=d5188b9694c29e0d776a643965f2461a1fbbe5e1;hp=496093134ec7b6c96437c6ffa6f060e87894bdd9;hpb=d27984bb297795f4e9a4531e2730d8188a799e89;p=model-checker.git

diff --git a/action.h b/action.h
index 4960931..dd7de7a 100644
--- a/action.h
+++ b/action.h
@@ -26,7 +26,7 @@ using std::memory_order_seq_cst;
 /** Note that this value can be legitimately used by a program, and
 		hence by iteself does not indicate no value. */
 
-#define VALUE_NONE 1234567890
+#define VALUE_NONE 0xdeadbeef
 
 /** A special value to represent a successful trylock */
 
@@ -94,6 +94,7 @@ public:
 	bool is_failed_trylock() const;
 	bool is_read() const;
 	bool is_write() const;
+	bool could_be_write() const;
 	bool is_rmwr() const;
 	bool is_rmwc() const;
 	bool is_rmw() const;