mfile
struct mfile *flistb[MERGE_FNUM], **flist = flistb, *cfile;
insert(struct mfile **flist, struct mfile *rec, int ttop, int delete)
static int insert(struct mfile **, struct mfile *, int, int);
static struct mfile fstack[MERGE_FNUM];
static struct mfile fstack_1[MERGE_FNUM];
static struct mfile fstack_2[MERGE_FNUM];
FILE *mfile;
mfile = fopen(fname, "r");
if (mfile == NULL)
(line = fparseln(mfile, &len, NULL, NULL, FPARSELN_UNESCALL));