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constructor TLFront.Create(const DefaultItem: __front_type__);
begin
FEmptyItem:=DefaultItem;
Clear;
end;
function TLFront.GetEmpty: Boolean;
begin
Result:=FCount = 0;
end;
function TLFront.First: __front_type__;
begin
Result:=FEmptyItem;
if FCount > 0 then
Result:=FItems[FBottom];
end;
function TLFront.Remove: __front_type__;
begin
Result:=FEmptyItem;
if FCount > 0 then begin
Result:=FItems[FBottom];
Dec(FCount);
Inc(FBottom);
if FBottom >= MAX_FRONT_ITEMS then
FBottom:=0;
end;
end;
function TLFront.Insert(const Value: __front_type__): Boolean;
begin
Result:=False;
if FCount < MAX_FRONT_ITEMS then begin
if FTop >= MAX_FRONT_ITEMS then
FTop:=0;
FItems[FTop]:=Value;
Inc(FCount);
Inc(FTop);
Result:=True;
end;
end;
procedure TLFront.Clear;
begin
FCount:=0;
FBottom:=0;
FTop:=0;
end;
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