----- Original Message -----
Sent: Friday, 19 November 1999
12:46
Subject: Re: [DUG]: Looking for memory
leaks
Progress report.
I tried Memproof, as someone in DUG
suggested, but it found very little for me.
So I tried Turbopowers memory sleuth on Terry's recommendation. They have a
time limited eval version. Boy its good, I was routinely leaving undisposed
memory all over the place, mainly because I was dumb and lazy, but Memory
Sleuth at least allowed me to see it.
I found one really curious thing though - I was creating an object which I
had defined thus;
pMyObject = ^tMyObject;
tMyObject =
class
...
end;
I created objects and saved them in a StringGrid;
var myObject : pMyObject;
begin
new(myObject);
MyObject^ := tMyObject.create;
MyObject^.Methodcalls
MyStringGrid.Objects[Col,Row] := MyObject;
then I disposed of the object in the end;
tMyObject(MyStringGrid.Objects[Col,Row]).free;
dispose(MyStringGrid.Objects[Col,Row])
TurboSleuth reported an undisposed memory from the new line. When I
recoded to use a tMyObject instead of a pMyObject (and dropped
the associated new and dispose calls) the leak disappeared. I am
more clever now, though no wiser. Any insights or explanations?
Leo
Turbopower have 'Memory Sleuth' which I've found to
be very good. Some $
involved though.
Terry
>hi all
I am trying to find sources of memory leaks in my code.
Can anyone offer
advice,
or perhaps recommend a free or cheap tool
to use.
Leo Ramakers
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