No, no, no, no, no.... :) Sorry... I didn't make myself clear! I know how to free an object. This is not the point of my email at all. I just wanted to create a piece of code that is supposed to crash (AV) the program.
And var t: tobject; begin t.free; end; should do that. Right? Well, in my case it doesn't!! This is my problem! Why the application doesn't crash????? I will repeat the initial conditions: brand new Delphi, no update, no IDE experts, brand new Windows XP SP2 (with updates) but no other programs. Also: if I disable Compiler Optimization, the application works as expected (access violation). Thanks. Dean Stow wrote: > 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 > > _______________________________________________ Delphi mailing list -> [email protected] http://lists.elists.org/cgi-bin/mailman/listinfo/delphi
