--- a/src/cargotype.h	Sun Mar 18 21:58:03 2007 +0000
+++ b/src/cargotype.h	Sun Mar 18 22:07:44 2007 +0000
@@ -57,5 +57,10 @@
 /* Get the cargo ID with the cargo label */
 CargoID GetCargoIDByLabel(CargoLabel cl);
 
+static inline bool IsCargoInClass(CargoID c, uint16 cc)
+{
+	return GetCargo(c)->classes & cc;
+}
+
 
 #endif /* CARGOTYPE_H */