BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Re: SetLength on Dynamic Array of Records          BorlandTalk.com Forum Index -> comp.lang.pascal.delphi.misc View previous topic :: View next topic   Author Message Dr John Stockton Guest Posted: Mon Jan 03, 2005 12:53 pm    Post subject: Re: SetLength on Dynamic Array of Records JRS: In article <33r2ngF44ipegU1 (AT) individual (DOT) net>, dated Sun, 2 Jan 2005 14:08:15, seen in news:alt.comp.lang.borland-delphi, Rob Kennedy <me3 (AT) privacy (DOT) net> posted : Quote: Do you have range checking turned on? That is, ISTM, a Frequently Asked Question - or ought to be. How about putting something like it in the FAQ? Or is it considered that the sort of person who develops/debugs with runtime checks off is the sort of person who will never read a FAQ? It is covered in the comp.lang.pascal.borland FAQ. XP set. -- © John Stockton, Surrey, UK. ?@merlyn.demon.co.uk Delphi 3 Turnpike 4 © <URL:http://www.merlyn.demon.co.uk/> TP/BP/Delphi/&c., FAQqy topics & links; <URL:http://www.bancoems.com/CompLangPascalDelphiMisc-MiniFAQ.htm> clpdmFAQ; <URL:http://www.borland.com/newsgroups/guide.html> news:borland.* Guidelines Back to top Rob Kennedy Guest Posted: Mon Jan 03, 2005 7:44 pm    Post subject: Re: SetLength on Dynamic Array of Records Dr John Stockton wrote: Quote: JRS: In article <33r2ngF44ipegU1 (AT) individual (DOT) net>, dated Sun, 2 Jan 2005 14:08:15, seen in news:alt.comp.lang.borland-delphi, Rob Kennedy [email]me3 (AT) privacy (DOT) net[/email]> posted : Do you have range checking turned on? That is, ISTM, a Frequently Asked Question - or ought to be. How about putting something like it in the FAQ? Well, it's a question I ask often enough, but I'm not sure how you plan to answer it yes or no in the FAQ! -- Rob Back to top Bruce Roberts Guest Posted: Mon Jan 03, 2005 7:51 pm    Post subject: Re: SetLength on Dynamic Array of Records "Dr John Stockton" <spam (AT) merlyn (DOT) demon.co.uk> wrote Quote: Do you have range checking turned on? That is, ISTM, a Frequently Asked Question - or ought to be. How about putting something like it in the FAQ? Agreed. Quote: Or is it considered that the sort of person who develops/debugs with runtime checks off is the sort of person who will never read a FAQ? ISTM that many do consult the FAQ. Witness the rarity of Q1 postings in the ng. There will always be those who do not, either through ignorance or sheer laziness. Perhaps the question could deal with several compiler directives that affect development. Specifically RangeChecking, OverflowChecking, Warnings and, possibly, BoolEval. (IMO it would be nice if the answer suggested that range and overflow checking be left on in release code, except for the most time-critical code.) Back to top Maarten Wiltink Guest Posted: Mon Jan 03, 2005 9:05 pm    Post subject: Re: SetLength on Dynamic Array of Records "Bruce Roberts" <ber (AT) bounceitattcanada (DOT) xnet> wrote Quote: "Dr John Stockton" <spam (AT) merlyn (DOT) demon.co.uk> wrote in message news:yqkQWPcgBU2BFwrX (AT) merlyn (DOT) demon.co.uk... Do you have range checking turned on? That is, ISTM, a Frequently Asked Question - or ought to be. How about putting something like it in the FAQ? Agreed. Aye. But Rob is right, how to phrase it? Quote: Or is it considered that the sort of person who develops/debugs with runtime checks off is the sort of person who will never read a FAQ? ISTM that many do consult the FAQ. Witness the rarity of Q1 postings in the ng. There will always be those who do not, either through ignorance or sheer laziness. If I may, I would like to take the opportunity to urge people to not give answers that are in the miniFAQ, except by referring to it. Quote: Perhaps the question could deal with several compiler directives that affect development. Specifically RangeChecking, OverflowChecking, Warnings and, possibly, BoolEval. (IMO it would be nice if the answer suggested that range and overflow checking be left on in release code, except for the most time-critical code.) All good ideas if you ask me. Groetjes, Maarten Wiltink / Evil miniFAQ Boss Back to top Dr John Stockton Guest Posted: Tue Jan 04, 2005 1:25 pm    Post subject: Re: SetLength on Dynamic Array of Records JRS: In article <41d9b3b5$0$6208$e4fe514c (AT) news (DOT) xs4all.nl>, dated Mon, 3 Jan 2005 22:05:24, seen in news:alt.comp.lang.borland-delphi, Maarten Wiltink <maarten (AT) kittensandcats (DOT) net> posted : Quote: "Bruce Roberts" <ber (AT) bounceitattcanada (DOT) xnet> wrote in message news:aChCd.4482$7n1.288119 (AT) news20 (DOT) bellglobal.com... "Dr John Stockton" <spam (AT) merlyn (DOT) demon.co.uk> wrote in message news:yqkQWPcgBU2BFwrX (AT) merlyn (DOT) demon.co.uk... Do you have range checking turned on? That is, ISTM, a Frequently Asked Question - or ought to be. How about putting something like it in the FAQ? Agreed. Aye. But Rob is right, how to phrase it? It is generally accepted in newsgroups that a FAQ need not handle only questions exactly matching what is explicitly frequently asked; but that the alleged questions are there merely to represent what ought to be frequently asked, in order that Frequent Answers can then follow. "What compiler settings should be used, and where may they be found?" Include what is (in D3) under Project Options Compiler (including those words to show the route), with Range I/O Overflow, all Debug, all Messages, ON; probably Strict var-strings too - adjust to match recent/current Delphi, too. Quote: (IMO it would be nice if the answer suggested that range and overflow checking be left on in release code, except for the most time-critical code.) Agreed. If such code is put at the bottom of its unit, it can be preceded by such as {$R-}. Most cases where overflow is legitimate can be handled by type-casting, use of bigger types, use of Inc/Dec, or re-thinking; but sometimes it must be allowed. Those who are desperate for speed can be divided into two classes : true experts, who will know when to overrule FAQ advice, and /hoi polloi/ such as myself who do better to aim only at being reasonably fast. One might also add that Complete Boolean Evaluation should be set on/off in writing within each relevant unit; it is possible to write code which works equally well in either state, but with different results. Likewise for Aligned Record Fields, and maybe others. -- © John Stockton, Surrey, UK. ?@merlyn.demon.co.uk Delphi 3 Turnpike 4 © <URL:http://www.merlyn.demon.co.uk/> TP/BP/Delphi/&c., FAQqy topics & links; <URL:http://www.bancoems.com/CompLangPascalDelphiMisc-MiniFAQ.htm> clpdmFAQ; <URL:http://www.borland.com/newsgroups/guide.html> news:borland.* Guidelines 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.