diff --git a/src/structs.h b/src/structs.h
index f4bd386..45c8211 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -1460,6 +1460,12 @@
     type_T	*type_decl;	    // declared type or equal to type_current
 } type2_T;
 
+#define TTFLAG_VARARGS	    0x01    // func args ends with "..."
+#define TTFLAG_BOOL_OK	    0x02    // can be converted to bool
+#define TTFLAG_NUMBER_OK    0x04    // tt_type is VAR_FLOAT, VAR_NUMBER is OK
+#define TTFLAG_STATIC	    0x08    // one of the static types, e.g. t_any
+#define TTFLAG_CONST	    0x10    // cannot be changed
+
 typedef enum {
     ACCESS_PRIVATE,	// read/write only inside th class
     ACCESS_READ,	// read everywhere, write only inside th class
@@ -1517,11 +1523,6 @@
     int		obj_copyID;	    // used by garbage collection
 };
 
-#define TTFLAG_VARARGS	0x01	    // func args ends with "..."
-#define TTFLAG_BOOL_OK	0x02	    // can be converted to bool
-#define TTFLAG_STATIC	0x04	    // one of the static types, e.g. t_any
-#define TTFLAG_CONST	0x08	    // cannot be changed
-
 /*
  * Structure to hold an internal variable without a name.
  */