BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Variable removed due to Optimization!!!          BorlandTalk.com Forum Index -> comp.lang.pascal.delphi.misc View previous topic :: View next topic   Author Message Anton Feiertag Guest Posted: Mon Jan 12, 2004 2:27 pm    Post subject: Variable removed due to Optimization!!! Hi All I sometimes gets the message "variable removed due to optimization", and then I can't inspect it. Is there a way arround this. That is, to have all variables available at all times. I don't have optimization switched on. Kind greetings Anton Feiertag Back to top Jose Perez Guest Posted: Mon Jan 12, 2004 3:15 pm    Post subject: Re: Variable removed due to Optimization!!! "Anton Feiertag" <anton (AT) dokker (DOT) com> wrote Quote: Hi All I sometimes gets the message "variable removed due to optimization", and then I can't inspect it. Is there a way arround this. That is, to have all variables available at all times. I don't have optimization switched on. This message should only appear if the variable is not referenced in your code. That is, it was declared, but not used. Quote: Kind greetings Anton Feiertag Back to top Andreas Schmidt Guest Posted: Mon Jan 12, 2004 3:27 pm    Post subject: Re: Variable removed due to Optimization!!! "Anton Feiertag" <anton (AT) dokker (DOT) com> schrieb im Newsbeitrag news:btuat5$7mq$1 (AT) ctb-nnrp2 (DOT) saix.net... Quote: I sometimes gets the message "variable removed due to optimization", and then I can't inspect it. Is there a way arround this. That is, to have all variables available at all times. I don't have optimization switched on. Did you rebuild the whole project? You should do so after changing a project option. Andreas Back to top Jamie Guest Posted: Mon Jan 12, 2004 10:07 pm    Post subject: Re: Variable removed due to Optimization!!! if you make to usable reference to the variable in your code the compiler will remove it. if your using it to test some results you simply make a reference to it in your code so that the compiler won't remove it. Anton Feiertag wrote: Quote: Hi All I sometimes gets the message "variable removed due to optimization", and then I can't inspect it. Is there a way arround this. That is, to have all variables available at all times. I don't have optimization switched on. Kind greetings Anton Feiertag Back to top Anton Feiertag Guest Posted: Thu Jan 15, 2004 9:34 am    Post subject: Re: Variable removed due to Optimization!!! I can assure you that the variable is referenced. I have declared it and used it in statements in that function/procedure but when I put the mouse on it or with CTRL-F7 it says that it was removed due to optimization. I am then forced to use a ShowMessage(Variable) to see its contents. Greetings Anton "Jose Perez" <jomperez (AT) optonline (DOT) net> wrote Quote: "Anton Feiertag" <anton (AT) dokker (DOT) com> wrote in message news:btuat5$7mq$1 (AT) ctb-nnrp2 (DOT) saix.net... Hi All I sometimes gets the message "variable removed due to optimization", and then I can't inspect it. Is there a way arround this. That is, to have all variables available at all times. I don't have optimization switched on. This message should only appear if the variable is not referenced in your code. That is, it was declared, but not used. Kind greetings Anton Feiertag Back to top J French Guest Posted: Thu Jan 15, 2004 10:13 am    Post subject: Re: Variable removed due to Optimization!!! On Thu, 15 Jan 2004 11:34:32 +0200, "Anton Feiertag" <anton (AT) dokker (DOT) com> wrote: Quote: I can assure you that the variable is referenced. I have declared it and used it in statements in that function/procedure but when I put the mouse on it or with CTRL-F7 it says that it was removed due to optimization. I am then forced to use a ShowMessage(Variable) to see its contents. Yes - that can happen - this is because the compiler has decided that it does not need the variable - typically (I guess) when it has decided to keep the value in a register I think that your best bet is to send the variable to a routine where, if a flag is set, you do a ShowMessage - that normally foxes the compiler Back to top Nicolai Hansen Guest Posted: Thu Jan 15, 2004 2:21 pm    Post subject: Re: Variable removed due to Optimization!!! "Anton Feiertag" <anton (AT) dokker (DOT) com> wrote Quote: Hi All I sometimes gets the message "variable removed due to optimization", and then I can't inspect it. Is there a way arround this. That is, to have all variables available at all times. I don't have optimization switched on. Kind greetings Anton Feiertag There is a workaround for this. Declare a global pointer: var glP: Pointer; Then, lets say you want to watch the variable "i", do the following procedure TSomeType.SomeMethod; var i, j: integer; begin glP:=@i; i:=10; j:=i+5; j:=j*2; end; -normally- "i" would be eliminated after the j:=i+5 line. But because of the pointer, you can keep watching "i". Back to top Bruce Roberts Guest Posted: Thu Jan 15, 2004 3:26 pm    Post subject: Re: Variable removed due to Optimization!!! "Anton Feiertag" <anton (AT) dokker (DOT) com> wrote Quote: I can assure you that the variable is referenced. I have declared it and used it in statements in that function/procedure but when I put the mouse on it or with CTRL-F7 it says that it was removed due to optimization. I am then forced to use a ShowMessage(Variable) to see its contents. A last reference to a local variable of the form X := someExpression; will likely mean that the compiler removes the statement, unless it involves function or method calls. The assignment to X will, in any case, be optimized out - its value is never used. Back to top Terry Russell Guest Posted: Fri Jan 16, 2004 1:12 am    Post subject: Re: Variable removed due to Optimization!!! "Anton Feiertag" <anton (AT) dokker (DOT) com> wrote Quote: I can assure you that the variable is referenced. I have declared it and used it in statements in that function/procedure but when I put the mouse on it or with CTRL-F7 it says that it was removed due to optimization. I am then forced to use a ShowMessage(Variable) to see its contents. Greetings Anton if you select view->debug windows->local variables Then step through the code you should see that with optimisation ON the variable value is only accessible when stepping within the range of code that references it.. Turning optimisation off doesn't necessarily mean the exe will be linked with code compiled off. The code may not be rebuilt, you may have otherwise fixed the units options. eg ctrl+O+O inserts options at head of unit , overriding project options Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         BorlandTalk.com Forum Index -> comp.lang.pascal.delphi.misc All times are GMT Page 1 of 1   Jump to: Select a forum C++ Builder Newsgroups----------------C++ BuilderC++ Builder (ActiveX)C++ Builder (Announcements)C++ Builder (Command Line Tools)C++ Builder DatabasesC++ Builder Databases (ADO)C++ Builder Databases (Desktop)C++ Builder Databases (InterBase Express)C++ Builder Databases (Multi-Tier)C++ Builder Databases (SQL Servers)C++ Builder (Graphics)C++ Builder (IDE)C++ Builder (Internet)C++ Builder (Internet Socket)C++ Builder (Internet Web)C++ Builder (Jobs)C++ Builder (Language)C++ Builder (Language C++)C++ Builder (Compatibility with MFC)C++ Builder (Native API)C++ Builder (Non-Technical)C++ Builder (Students)C++ Builder (Third Party Tools)C++ Builder (Upgrade)C++ Builder (VCL)C++ Builder (VCL Components Usage)C++ Builder (VCL Components Development)C++ Builder (VCL Usage)C++ Builder (WinAPI)C++ Builder Installation Delphi Newsgroups----------------Delphi (General)Delphi ActiveX Controls UsageDelphi ActiveX Controls DevelopmentDelphi As400Delphi DatabasesDelphi Databases (ADO)Delphi Databases (dbExpress)Delphi Databases (Desktop)Delphi Databases (InterBase Express)Delphi Databases (Multi-Tier)Delphi Databases (SQL Servers)Delphi DeploymentDelphi GraphicsDelphi IDEDelphi InternationalizationDelphi InternetDelphi Internet Isapi-WebBrokerDelphi Internet WebSnapDelphi Internet WinsockDelphi JobsDelphi Language BASMDelphi Language ObjectPascalDelphi Model Driven Architecture (General)Delphi Model Driven Architecture (Third Party)Delphi MultimediaDelphi Native APIDelphi Non-TechnicalDelphi ObjectPascalDelphi OLE AutomationDelphi OO designDelphi OpenToolsAPIDelphi Reporting-ChartingDelphi RTLDelphi StudentsDelphi TeamSourceDelphi Thirdparty ToolsDelphi Thirdparty Tools (General)Delphi Thirdparty Tools (IntraWeb)Delphi Thirdparty Tools (RaveReports)Delphi UpgradeDelphi VCLDelphi VCL ComponentsDelphi VCL Components UsingDelphi VCL Components WritingDelphi WebServices SOAPDelphi WinAPIDelphi XMLDelphi Installationcomp.lang.pascal.delphi.components.misccomp.lang.pascal.delphi.components.usagecomp.lang.pascal.delphi.components.writingcomp.lang.pascal.delphi.databasescomp.lang.pascal.delphi.misccomp.sources.delphi JBuilder Newsgroups----------------JBuilderJBuilder AnnouncementsJBuilder Applet IssuesJBuilder As400JBuilder CompilerJBuilder CORBA/RMIJBuilder DatabasesJBuilder DB SwingJBuilder DebuggerJBuilder DeploymentJBuilder DocumentationJBuilder EnterpriseJBuilder HandheldJBuilder IDEJBuilder JavaJBuilder JavaAPIJBuilder Java LanguageJBuilder Java SwingJBuilder Java BeansJBuilder Java Beans UsageJBuilder Java Beans DevelopmentJBuilder JBCLJBuilder JDataStoreJBuilder JobsJBuilder LinuxJBuilder MacintoshJBuilder & MobileSetJBuilder MultiLingual AppsJBuilder Non-TechnicalJBuilder OpenToolsJBuilder Servlets (JSP)JBuilder StudentsJBuilder Team DevelopmentJBuilder Thirdparty ToolsJBuilder UpgradeJBuilder Installation InterBase Newsgroups----------------InterBaseInterBase Bug DiscussionInterBase GeneralInterBase IBConsoleInterBase OpenSourceInterBase ReplicationInterBase SQLInterBase ThirdpartyInterBase Installation Miscellaneous Borland Newsgroups----------------AppCenterAppServerEnteraVisiBroker  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.