+/* Returns true if RESULT is a valid "enum cmd_result",
+ false otherwise. */
+static inline bool
+cmd_result_is_valid (enum cmd_result result)
+{
+ return (result == CMD_SUCCESS || result == CMD_EOF || result == CMD_FINISH
+ || (result >= CMD_PRIVATE_FIRST && result <= CMD_PRIVATE_LAST)
+ || result == CMD_FAILURE || result == CMD_NOT_IMPLEMENTED
+ || result == CMD_CASCADING_FAILURE);
+}
+