Do I have to allocate and free records when using TList<T> in Delphi?
- by afrazier
The question more or less says it all. Given the following record structure:
type
TPerson = record
Name: string;
Age: Integer;
end;
PPerson = ^TPerson;
TPersonList = TList<TPerson>;
Is the following code valid?
procedure ReadPeople(DataSet: TDataSet; PersonList: TPersonList);
begin
PersonList.Count := DataSet.RecordCount;
if DataSet.RecordCount = 0 then
Exit;
DataSet.First;
while not DataSet.Eof do begin
PersonList[DataSet.RecNo].Name := DataSet.FieldByName('Name').AsString;
PersonList[DataSet.RecNo].Age := DataSet.FieldByName('Age').AsInteger;
DataSet.Next;
end;
end;
Do I have to use GetMem/FreeMem to allocate and free records an instance of TPersonList, or am I free to directly access the TPersonList entries directly? My gut says that the code should be valid, though I'm not sure if there's any wrinkles related to record initialization or finalization.
