Before freeing T, you need to have created it. What is likely happening is that the address pointer for the variable T is starting out pointing to a part of memory that if treated as a stringlist and Free is called will close the form but not the application.
I would suspect that there is nothing wrong with your computer and nothing wrong with Delphi. You are just doing something that is unsafe. You are accessing a method of an uninitialized object. The compiler optimization is bypassing the internal code that checks for such problems and is assuming that the code has been thoroughly debugged and that you know exactly what you are up to. I hope this is helpful. Dean -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of CubicDesign Sent: Friday, July 11, 2008 2:19 PM To: undisclosed-recipients: Subject: Application will never crash!!! Hi. Recently I have discovered that my application will not crash if I run this code with "compiler optimization" turned on. Procedure TForm.buttonclick(sneder: tobject); Var t: tstringlist; Begin t.free; End; If I push the button that calls this code, the main for disappear but the application still remains in memory. I have to use Ctrl+Alt+Del to kill it. I have reinstalled Delphi, but this still didn't fixed my problem. Then I have reinstalled Windows, and again Delphi, without the Update1 and without 3^rd part components or IDE experts. Still not working. I don't know what to try else. A new computer? :) _______________________________________________ Delphi mailing list -> [email protected] http://lists.elists.org/cgi-bin/mailman/listinfo/delphi Hurley and Associates believes positions are unique to each person's risk bearing ability, marketing strategy, and crop conditions, therefore we give no blanket recommendations. The risk of loss in trading commodities can be substantial, therefore carefully consider whether such trading is suitable for you in light of your financial condition. NFA Rules require us to advise you that past performance is not indicative of future results, and there is no guarantee that your trading experience will be similar to past performance. Hurley and Associates believes positions are unique to each person's risk bearing ability, marketing strategy, and crop conditions, therefore we give no blanket recommendations. The risk of loss in trading commodities can be substantial, therefore carefully consider whether such trading is suitable for you in light of your financial condition. NFA Rules require us to advise you that past performance is not indicative of future results, and there is no guarantee that your trading experience will be similar to past performance. _______________________________________________ Delphi mailing list -> [email protected] http://lists.elists.org/cgi-bin/mailman/listinfo/delphi
