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Article #713Re: ensuring CriticalSections are release..
From: Dennis Jones
Date: Tue, 15 Jan 2008 07:17
Date: Tue, 15 Jan 2008 07:17
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"Clayton Arends" <nospam_claytonarends@hotmail.com> wrote in message news:478c5a53$1@newsgroups.borland.com... > "Dennis Jones" <nospam@nospam.com> wrote in message > news:478c17ad$2@newsgroups.borland.com... > >> "Bob Gonder" <notbg@notmindspring.invalid> wrote in message >> news:e45oo3tf9dfrtlm8udetauha7jp5s4glam@4ax.com... >>> If the creation is a function, then that >>> negates the uselessness test. >> >> Not sure what you are getting at here, Bob. > > I think the uselessness test applies even if the class was created without > a function. The nature of classes is that they can do anything on > construction and anything on destruction. This simple fact means that the > compiler cannot reliably know if the variable has no practical use. Okay, I think I see what you mean. If the object is of some class with a destructor, then the object *will* be used, even if it is not explicitly used in the code. So, if the compiler generates the warning sometimes but not others, then I agree that the compiler may be deficient in its evaluation of cases where the warning is appropriate (I don't think I would go so far as to call it a bug though). - Dennis
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X-Google-Thread: 10cc67,266d339b0fd4ba38 X-Google-Attributes: gid10cc67,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit From: "Dennis Jones" <nospam@nospam.com> Newsgroups: borland.public.cppbuilder.nativeapi References: <478a96e3@newsgroups.borland.com> <478b0076$1@newsgroups.borland.com> <478bac9a$1@newsgroups.borland.com> <478bba5f$1@newsgroups.borland.com> <478be3e4$1@newsgroups.borland.com> <478bf841$1@newsgroups.borland.com> <478c08c8$1@newsgroups.borland.com> <e45oo3tf9dfrtlm8udetauha7jp5s4glam@4ax.com> <478c17ad$2@newsgroups.borland.com> <478c5a53$1@newsgroups.borland.com> Subject: Re: ensuring CriticalSections are release.. Date: Mon, 14 Jan 2008 23:17:25 -0800 Lines: 28 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 X-RFC2646: Format=Flowed; Response NNTP-Posting-Host: 71.245.109.58 Message-ID: <478c5e02$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1200381442 71.245.109.58 (14 Jan 2008 23:17:22 -0700) Path: arc1-ca.pugleaf.net!g2news1.google.com!news4.google.com!proxad.net!feeder1-2.proxad.net!213.200.89.82.MISMATCH!tiscali!newsfeed1.ip.tiscali.net!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail