66 blkpr(FILE *fp, Char **av)  in blkpr()  argument
69     for (; *av; av++) {  in blkpr()
70 	(void) fprintf(fp, "%s", vis_str(*av));  in blkpr()
71 	if (av[1])  in blkpr()
77 blklen(Char **av)  in blklen()  argument
81     while (*av++)  in blklen()
89     Char **av = oav;  in blkcpy()  local
91     while ((*av++ = *bv++) != NULL)  in blkcpy()
107     Char **av = av0;  in blkfree()  local
111     for (; *av; av++)  in blkfree()
112 	free(* av);  in blkfree()