+#define setquote(cp) \
+ setbit(((char *)((int)(cp)&~CROUND)+sizeof(struct cblock *)), \
+ (int)(cp)&CROUND)
+#define isquote(cp) \
+ isset(((char *)((int)(cp)&~CROUND)+sizeof(struct cblock *)), \
+ (int)(cp)&CROUND)
+#define cbptr(x) ((struct cblock *)(x))
+