Boundschecker detects resource leak in Tlist

I'm using Boundchecker 5.03 to debug applications that were created in Delphi 3.02. I've noticed that Boundschecker reports resource leaks every time my code creates a TList or TStringList object.

I either call TList.Create in the constructor for an object and call the Free method in the corresponding destructor, or I encapsulate the 'Create' and 'Free' methods in a try..finally block.  I can't see where I'm going wrong and create /destroy plenty of other objects dynamically without any resource leaks.  The size of each resource leak varies which I also think is odd.

Can anyone help?
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

When you free the list, is it empty?
If you delete an object or free the list, you don't free the listed objects.  You'll need to iterate through the list and free them first.
andrewjacksonAuthor Commented:
Thanks for you reply but I do free all the listed objects.  Anyhow, even if I didn't this would show as resource leaks where I created the listed objects, and be in no way associated with any particular TList object. In the case of a TStringList, I've assumed that Delphi handles deletion of all listed strings even though resource leaks are still reported.  
bcrotazCommented: does free the strings.
I've no idea in that case.
I'll step back for someone else.
Python 3 Fundamentals

This course will teach participants about installing and configuring Python, syntax, importing, statements, types, strings, booleans, files, lists, tuples, comprehensions, functions, and classes.

Can you show some code?
I think you should try and check boths objects Capacity properties. Delphi normally controls their capacity automatically, but you should be able to set them manually.
If you delete Items, The Items might still exist in memory, but you can remove them by setting


..Maybe it works? I haven't got a Boundschecker :-)

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
andrewjacksonAuthor Commented:
I've spotted a similar question to mine posted on the


newsgroup.  The problem has been traced to a bug in Boundschecker and acknowledged by Numega so the reported resource leaks do not actually exist.  Thanks all the same for all the suggestions that have been posted.
Now you have found the bug, I've been working on an alternative TList component build with a relative doublechained listindex. It works similar, but is a bit faster in some ways.
Now you have graded me, you can have it if you like..
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.