* vm_dump.c: parenthesize macro arguments.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30524 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Wed Jan 12 19:37:10 2011  Tanaka Akira  <akr@fsij.org>
+
+	* vm_dump.c: parenthesize macro arguments.
+
 Wed Jan 12 19:28:23 2011  Tanaka Akira  <akr@fsij.org>
 
 	* vm.c (thread_free): reset ruby_current_thread if it points the

vm_dump.c

@@ -16,7 +16,7 @@
 #define MAX_POSBUF 128
 
 #define VM_CFP_CNT(th, cfp) \
-  ((rb_control_frame_t *)(th->stack + th->stack_size) - (rb_control_frame_t *)(cfp))
+  ((rb_control_frame_t *)((th)->stack + (th)->stack_size) - (rb_control_frame_t *)(cfp))
 
 static void
 control_frame_dump(rb_thread_t *th, rb_control_frame_t *cfp)