next_ifile
next_ifile(curr_ifile) == NULL)
next_ifile(curr_ifile) == NULL)
next = (dir > 0) ? next_ifile(h) : prev_ifile(h);
if ((h = next_ifile(h)) == NULL) {
next = next_ifile(save_ifile);
IFILE next_ifile(IFILE);
if ((newifile = next_ifile(ifile)) != NULL)
return (next_ifile(curr_ifile) != NULL);
h = next_ifile(curr_ifile);