+#define FEATURE_BITWISE_BIT 0x0001
+#define FEATURE___SUB___BIT 0x0002
+#define FEATURE_MYREF_BIT 0x0004
+#define FEATURE_EVALBYTES_BIT 0x0008
+#define FEATURE_FC_BIT 0x0010
+#define FEATURE_POSTDEREF_QQ_BIT 0x0020
+#define FEATURE_REFALIASING_BIT 0x0040
+#define FEATURE_SAY_BIT 0x0080
+#define FEATURE_SIGNATURES_BIT 0x0100
+#define FEATURE_STATE_BIT 0x0200
+#define FEATURE_SWITCH_BIT 0x0400
+#define FEATURE_UNIEVAL_BIT 0x0800
+#define FEATURE_UNICODE_BIT 0x1000
+