dictCellsUsed
if ((unsigned)n <= dictCellsUsed(pDict) * sizeof (CELL))
cp -= dictCellsUsed(pDict) * sizeof (CELL);
if (nCells <= dictCellsUsed(pDict))
pDict->here -= dictCellsUsed(pDict);
return pDict->size - dictCellsUsed(pDict);
if ((n <= 0) && (dictCellsUsed(pDict) * (int)sizeof(CELL) < -n))
int dictCellsUsed (FICL_DICT *pDict);