FLD
#define isfld(n) ((n)->tval & FLD)
fldtab[i]->tval = FLD | STR | DONTFREE;
fldtab[i]->tval = FLD | STR | DONTFREE;
fldtab[i]->tval = FLD | STR;
fldtab[i]->tval = FLD | STR | DONTFREE;
p->tval = FLD | STR | DONTFREE;
fldtab[i]->tval = FLD | STR | DONTFREE;
static Cell dollar1 = { OCELL, CFLD, NULL, EMPTY, 0.0, FLD|STR|DONTFREE, NULL, NULL };
if (x == y && !(x->tval & (FLD|REC)) && x != nfloc)
y->tval = x->tval & ~(CON|FLD|REC);
{ "FLD", FLD },