+#define CvHASEVAL(cv) (CvFLAGS(cv) & CVf_HASEVAL)
+#define CvHASEVAL_on(cv) (CvFLAGS(cv) |= CVf_HASEVAL)
+#define CvHASEVAL_off(cv) (CvFLAGS(cv) &= ~CVf_HASEVAL)
+
+#define CvNAMED(cv) (CvFLAGS(cv) & CVf_NAMED)
+#define CvNAMED_on(cv) (CvFLAGS(cv) |= CVf_NAMED)
+#define CvNAMED_off(cv) (CvFLAGS(cv) &= ~CVf_NAMED)
+
+#define CvLEXICAL(cv) (CvFLAGS(cv) & CVf_LEXICAL)
+#define CvLEXICAL_on(cv) (CvFLAGS(cv) |= CVf_LEXICAL)
+#define CvLEXICAL_off(cv) (CvFLAGS(cv) &= ~CVf_LEXICAL)
+
+#define CvANONCONST(cv) (CvFLAGS(cv) & CVf_ANONCONST)
+#define CvANONCONST_on(cv) (CvFLAGS(cv) |= CVf_ANONCONST)
+#define CvANONCONST_off(cv) (CvFLAGS(cv) &= ~CVf_ANONCONST)
+