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  • Using macro to check null values [migrated]

    - by poliron
    My C code contains many functions with pointers to different structs as parameteres which shouldn't be NULL pointers. To make my code more readable, I decided to replace this code: if(arg1==NULL || arg2==NULL || arg3==NULL...) { return SOME_ERROR; } With that macro: NULL_CHECK(arg1,arg2,...) How should I write it, if the number of args is unknown and they can point to different structs?(I work in C99)

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  • Absent Code attribute in method that is not native or abstract

    - by kerry
    I got the following, quite puzzling error today when running a unit test: java.lang.ClassFormatError: Absent Code attribute in method that is not native or abstract in class file javax/servlet/http/Cookie A google search found this post, which explains that it is caused by having an interface in the classpath, and not an actual implementation. In this case it’s the java-ee interface. To fix this I added the jetty servlet api implementation to my pom: jetty javax.servlet test Piece of cake. I have run in to this before, so I figured I would capture the fix here in case I run in to it again.

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  • Are there code signing certificates cheaper than US$99 per year? [closed]

    - by gerryLowry
    K Software discounts Comodo code signing certificates to US$99 per year. In the past, I've seen Commodo code signing certificates for US$80. I'm excluding CAcert which AFAIK are FREE but are not covered by browsers like Internet Explorer AFAIK. QUESTION: What is the best price per year for a code signing certificate? Thank you ~~ gerry (lowry) Edit: **THIS SHOULD NOT HAVE BEEN CLOSED** from the FAQ: http://stackoverflow.com/faq ---------------------------- What kind of questions can I ask here? Programming questions, of course! As long as your question is: * detailed and specific <====== YES! * written clearly and simply <====== YES! * of interest to other programmers <====== YES! I've been programming for over 40 years. http://gerrylowryprogrammer.com/ I've taught computer programming at the community college level. I'm a Star level contributer to forums.asp.net. http://forums.asp.net/members/gerrylowry.aspx IMO, I've a very good idea what is of interest to other programmers. MORE INFORMATION http://en.wikipedia.org/wiki/Code_signing http://msdn.microsoft.com/en-us/library/ms537361%28VS.85%29.aspx also: via Google: code signing Ensuring the integrity of code and executables that one distributes is just as much about programming as is knowing how to flip bits in assembler, use delegates in C#, and use the BDD context/specification still of "test first testing".

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  • Why is my code signing (MS authenticode) verification failing?

    - by Tim
    I posted this question and have a freshly minted code signing cert from Thawte. I followed the instructions (or so I thought) and the code signing claims to be done right, however when I try to verify the tool shows an error. I have no idea what it means and no idea how to fix this. Any comments would be appreciated. Command line to sign exe: signtool sign /f mdt.pfx /p password /t http://timestamp.verisign.com/scripts/timstamp.dll test.exe Results: The following certificate was selected: Issued to: [my company] Issued by: Thawte Code Signing CA Expires: 4/23/2011 7:59:59 PM SHA1 hash: 7D1A42364765F8969E83BC00AB77F901118F3601 Done Adding Additional Store Attempting to sign: test.exe Successfully signed and timestamped: test.exe Number of files successfully Signed: 1 Number of warnings: 0 Number of errors: 0 Note that there are no errors or warnings. Now, when I try to verify imagine my surprise: signtool verify /v test.exe results in: Verifying: test.exe SHA1 hash of file: 490BA0656517D3A322D19F432F1C6D40695CAD22 Signing Certificate Chain: Issued to: Thawte Premium Server CA Issued by: Thawte Premium Server CA Expires: 12/31/2020 7:59:59 PM SHA1 hash: 627F8D7827656399D27D7F9044C9FEB3F33EFA9A Issued to: Thawte Code Signing CA Issued by: Thawte Premium Server CA Expires: 8/5/2013 7:59:59 PM SHA1 hash: A706BA1ECAB6A2AB18699FC0D7DD8C7DE36F290F Issued to: [my company] Issued by: Thawte Code Signing CA Expires: 4/23/2011 7:59:59 PM SHA1 hash: 7D1A42364765F8969E83BC00AB77F901118F3601 The signature is timestamped: 4/27/2010 10:19:19 AM Timestamp Verified by: Issued to: Thawte Timestamping CA Issued by: Thawte Timestamping CA Expires: 12/31/2020 7:59:59 PM SHA1 hash: BE36A4562FB2EE05DBB3D32323ADF445084ED656 Issued to: VeriSign Time Stamping Services CA Issued by: Thawte Timestamping CA Expires: 12/3/2013 7:59:59 PM SHA1 hash: F46AC0C6EFBB8C6A14F55F09E2D37DF4C0DE012D Issued to: VeriSign Time Stamping Services Signer - G2 Issued by: VeriSign Time Stamping Services CA Expires: 6/14/2012 7:59:59 PM SHA1 hash: ADA8AAA643FF7DC38DD40FA4C97AD559FF4846DE Number of files successfully Verified: 0 Number of warnings: 0 Number of errors: 1

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  • What does the status code of the Perl interpreter mean?

    - by futureelite7
    Hi, This might sound slightly confusing, but please bear with me. I'm trying to execute a copy of the Perl interpreter using Java's Runtime.exec(). However, it returned error code 9. After running the file a few times, the perl interpreter mysteriously started to return code 253 with no changes in my command at all. What does code 253 / code 9 mean? A google search for perl interpreter's exit codes turned up nothing. Where can I find a list of exit codes for the Perl interpreter? Thanks!

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  • What is the correct syntax for using HTML builder with mixed content in Groovy 1.7?

    - by stian
    On the Groovy example page there is an example of how to use Groovy HTML builder with mixed content: p [ "This is some", b"mixed", "text. For more see the", ahref:'http://groovy.codehaus.org' ["Groovy"], "project" ] This is however not working for me, I get an error message like: expecting ']', found 'mixed' @ line 33, column 23. b"mixed", ^ 1 error The Groovy example page states that: [Note: the syntax in some of these examples is slightly out-dated. See chapter 8 of GINA in the mean-time until these examples are updated.] My suspicion therefore is that the syntax of the HTML builder has changed, however I don't have the book so I cannot check and I cannot seem to find any relevant example of this working online. Does anyone know how the syntax is supposed to be in Groovy 1.7 and have got this working?

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  • How can I use Code Contracts in a C++/CLI project?

    - by Daniel Wolf
    I recently stumbled upon Code Contracts and have started using them in my C# projects. However, I also have a number of projects written in C++/CLI. For C# and VB, Code Contracts offer a handy configuration panel in the project properties dialog. For a C++/CLI project, there is no such panel. From the documentation, I got the impression that adding Code Contracts support to a C++/CLI project should be a simple matter of calling some external tools as part of the build process (namely ccrefgen.exe, cccheck.exe, and ccrewrite.exe). However, the number of command line options and restrictions concerning the call sequence have me somewhat intimidated. Can anybody point me to a simple way to run the Code Contracts tools as an automated part of the build process in Visual Studio?

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  • How should I move my code from dev to production?

    - by Teddy
    I have created a PHP web-application. I have 3 environments: DEV, TEST, PROD. What's a good tool / business practice for me to move my PHP web-application code from DEV to TEST to the PROD environment? Realizing that my TEST environment still only connects to my TEST database; whereas, I need to PROD environment to connect to my PROD database. So the code is mostly the same, except that I need to change my TEST code once moved into PROD to connect to the PROD database and not TEST database. I've heard of people taking down Apache in such away that it doesn't allow new connections and once all the existing connections are idle it simply brings down the web server. Then people manually copy the code and then manually update the config files of the PHP application to also point to the PROD instance. That seems terribly dangerous. Does a best practice exists?

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  • PHP: How should I move my code from dev to production?

    - by Teddy
    I have created a PHP web-application. I have 3 environments: DEV, TEST, PROD. What's a good tool / business practice for me to move my PHP web-application code from DEV to TEST to the PROD environment? Realizing that my TEST environment still only connects to my TEST database; whereas, I need to PROD environment to connect to my PROD database. So the code is mostly the same, except that I need to change my TEST code once moved into PROD to connect to the PROD database and not TEST database. I've heard of people taking down Apache in such away that it doesn't allow new connections and once all the existing connections are idle it simply brings down the web server. Then people manually copy the code and then manually update the config files of the PHP application to also point to the PROD instance. That seems terribly dangerous. Does a best practice exists?

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  • Can I make Visual Studio's code completion window more like Eclipse (Java)?

    - by Matt
    Is it possible to make Visual Studio 2010's code completion window more like that of Eclipse (Java)? In particular, I'd love the code completion window to give me a variable's type, and a method's return type and expected parameters, without needing to hover the highlight over that particular variable/method. VS's code completion's little icons that indicate if something is a property, method etc are useful, but they just aren't enough.

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  • Is it impossible to secure .net code (intellectual property) ?

    - by JL
    I used to work in JavaScript a lot and one thing that really bothered my employers was that the source code was too easy to steal. Even with obfuscation, nothing really helped, because we all knew that any competent developer would be able to read that code if they wanted to. JS Scripts are one thing, but what about SOA projects that have millions invested in IP (Intellectual Property). I love .net, and especially C#, but I recently again had to answer the question "If we give this compiled program over to our clients, can their developers reverse engineer it?" I had gone out of my way to obfuscate the code, but I knew it wouldn't take that much for another determined C# developer to get at the code. So I earnestly pose the question, is it impossible to secure .net code? The considerations I have as as follows: Even regular native executables can be reversed, but not every developer has the skill to be able to do this. Its a lot harder to disassemble a native executable than a .net assembly. Obfuscation will only get you so far, but it does help a little. Why have I never seen any public acknowledgement by Microsoft that anything written in .net is subject to relatively easy IP theft? Why have I never seen a scrap of counter measure training on any Microsoft site? Why does VS come with a community obfuscater as an optional component? Ok maybe I have just had my head in the sand here, but its not exactly high on most developers priority list. Are there any plans to address my concerns in any future version of .net? I'm not knocking .net, but I would like some realistic answers, thank you, question marked as subjective and community!

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  • WCF code generation for large/complex schema (HR-XML/OAGIS) - is there an alternative?

    - by Sasha Borodin
    Hello, and thank you for reading. I am implementing a WCF Service based on a predefined specification (HR-XML 3.0). As such, I am starting with the schema, and working my way back to code. There are a number of large Schema documents (which import yet more Schema documents) related to my implementation, provided by this specification. I am able to generate code using xsd.exe, by supplying the "main" and "supporting" xsd files as arguments. But there are several issues, and I am wondering if this is the right approach. there are litterally hundreds of classes - the code file is half a meg in size duplicate classes (ex. Type, Type1 - which both represent the same type) there are classes declared as inheriting from a base class, but that base class is not generated/defined I understand that there are limitations to the types of Schema supported by svcutil.exe/xsd.exe when targeting the DataContractSerializer and even XmlSerializer. My question is two-fold: Are code generation "issues" fairly common when dealing with larger, modular xsd files? Has anyone had success with generating data contracts from OAGIS or HR-XML schema? Given the above issues, are there better approaches to this task, avoiding generating code and working with concrete objects? Does it make better sence to read and compose a SOAP message directly, while still taking advantage of the rest of the WCF framework? I understand that I am loosing the convenience of working with .NET objects, and the framekwork-provided (de)serialization; given these losses, would it still be advantageous to base my Service on WCF? Is there some "middle ground" between working with .NET types and pure XML? Thank you very much! -Sasha Borodin DFWHC.org

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  • Using Fortran to call C++ Functions

    - by Dane Larsen
    I'm trying to get some FORTRAN code to call a couple c++ functions that I wrote (c_tabs_ being one of them). Linking and everything works just fine, as long as I'm calling functions that don't belong to a class. My problem is that the functions I want the FORTRAN code to call belong to a class. I looked at the symbol table using nm and the function name is something ugly like this: 00000000 T _ZN9Interface7c_tabs_Ev FORTRAN won't allow me to call a function by that name, because of the underscore at the beginning, so I'm at a loss. The symbol for c_tabs when it's not in a class is quite simple, and FORTRAN has no problems with it: 00000030 T c_tabs_ Any suggestions? Thanks in advance.

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  • Google code: what kind of license should I use?

    - by Dran Dane
    Hello I would like to store my code on a repository such as Google Code. What kind of license should I use? I don't want to block me. My code may be open source and reused by others but I want to be able to reuse it in any open source project or not, and gainful project or not. Thank you.

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  • Access violation when running native C++ application that uses a /clr built DLL

    - by doobop
    I'm reorganzing a legacy mixed (managed and unmanaged DLLs) application so that the main application segment is unmanaged MFC and that will call a C++ DLL compiled with /clr flag that will bridge the communication between the managed (C# DLLs) and unmanaged code. Unfortuantely, my changed have resulted in an Access violation that occurs before the application InitInstance() is called. This makes it very difficult to debug. The only information I get is the following stack trace. > 64006108() ntdll.dll!_ZwCreateMutant@16() + 0xc bytes kernel32.dll!_CreateMutexW@12() + 0x7a bytes So, here are some sceanrios I've tried. - Turned on Exceptions-Win32 Exceptions-c0000005 Access Violation to break when Thrown. Still the most detail I get is from the above stack trace. I've tried the application with F10, but it fails before any breakpoints are hit and fails with the above stack trace. - I've stubbed out the bridge DLL so that it only has one method that returns a bool and that method is coded to just return false (no C# code called). bool DllPassthrough::IsFailed() { return false; } If the stubbed out DLL is compiled with the /clr flag, the application fails. If it is compiled without the /clr flag, the application runs. - I've created a stub MFC application using the Visual Studio wizard for multidocument applications and call DllPassthrough::IsFailed(). This succeeds even with the /clr flag used to compile the DLL. - I've tried doing a manual LoadLibrary on winmm.lib as outlined in the following note Access violation when using c++/cli. The application still fails. So, my questions are how to solve the problem? Any hints, strategies, or previous incidents. And, failing that, how can I get more information on what code segment or library is causing the access exception? If I try more involved workarounds like doing LoadLibrary calls, I'd like to narrow it to the failing libraries. Thanks. BTW, we are using Visual Studio 2008 and the project is being built against the .NET 2.0 framework for the managed sections.

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  • Is it rude to add "TODO: wtf?" in source code?

    - by mafutrct
    I encountered something ... well, you know TDWTF... something like that in an international project I'm working on. The code was written by a team mate. For a second I was tempted to add // TODO: wtf? to the infringing code but restrained myself. The project is indeed on a professional level, but for internal conversation, more colloquial language is used - but still no "bad" words as in "wtf". Usually, I'd surely not add such a comment, but I believe there are a few factors that allow consideration still: 1. It is not visible except as a comment in the source code (of course). 2. It is internal to our team - other developers may happen see it but it is not their code. 3. Comments in source code are usually accepted to be more colloquial, since it is "kept between us developers". Would you totally advise to never add such a comment? Or do you regard it as an edge case? Did you possibly add something similar yourself?

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  • Code Contracts: Do we have to specify Contract.Requires(...) statements redundantly in delegating me

    - by herzmeister der welten
    I'm intending to use the new .NET 4 Code Contracts feature for future development. This made me wonder if we have to specify equivalent Contract.Requires(...) statements redundantly in a chain of methods. I think a code example is worth a thousand words: public bool CrushGodzilla(string weapon, int velocity) { Contract.Requires(weapon != null); // long code return false; } public bool CrushGodzilla(string weapon) { Contract.Requires(weapon != null); // specify contract requirement here // as well??? return this.CrushGodzilla(weapon, int.MaxValue); } For runtime checking it doesn't matter much, as we will eventually always hit the requirement check, and we will get an error if it fails. However, is it considered bad practice when we don't specify the contract requirement here in the second overload again? Also, there will be the feature of compile time checking, and possibly also design time checking of code contracts. It seems it's not yet available for C# in Visual Studio 2010, but I think there are some languages like Spec# that already do. These engines will probably give us hints when we write code to call such a method and our argument currently can or will be null. So I wonder if these engines will always analyze a call stack until they find a method with a contract that is currently not satisfied? Furthermore, here I learned about the difference between Contract.Requires(...) and Contract.Assume(...). I suppose that difference is also to consider in the context of this question then?

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  • Is there a search engine that indexes source code of a web-page?

    - by Dexter
    I need to search the web for sites that are in our industry that use the same Adwords management company, to ensure that the said company is not violating our contract, as they have been accused of doing. They use a tracking code in the template of every page which has a certain domain in the URL, and I'm wondering if it's possible "Google" the source code using some bot that crawls the code rather than the content? For example, I bought an unlimited license for an image gallery, and I was asked to type the license number in a comment just before the script. I thought it was just so a human could look at the source and find out if someone paid, but it turned out that it was actually that they had a crawler looking for their source code and that comment. If it ran across the code on your site, it would look for the comment, and if it found one, it would check to see if it was an existing one. If not, it would first notify you of your noncompliance, and then notify the owner of the script. Edit: I'm looking to index HTML and JavaScript only, not the server-side languages or Java.

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  • What is Perl's secret of getting small code do so much?

    - by sak
    I've seen many (code-golf) Perl programs out there and even if I can't read them (Don't know Perl) I wonder how you can manage to get such a small bit of code to do what would take 20 lines in some other programming language. What is the secret of Perl? Is there a special syntax that allows you to do complex tasks in few keystrokes? Is it the mix of regular expressions? I'd like to learn how to write powerful and yet short programs like the ones you know from the code-golf challenges here. What would be the best place to start out? I don't want to learn "clean" Perl - I want to write scripts even I don't understand anymore after a week. If there are other programming languages out there with which I can write even shorter code, please tell me.

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  • C99 mixed declarations and code in open source projects?

    - by Eduardo
    Why is still C99 mixed declarations and code not used in open source C projects like the Linux kernel or GNOME? I really like mixed declarations and code since it makes the code more readable and prevents hard to see bugs by restricting the scope of the variables to the narrowest possible. This is recommended by Google for C++. For example, Linux requires at least GCC 3.2 and GCC 3.1 has support for C99 mixed declarations and code

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  • Do you recommend Enabling Code Analysis for C/C++ on Build?

    - by brickner
    I'm using Visual Studio 2010, and in my C++/CLI project there are two Code Analysis settings: Enable Code Analysis on Build Enable Code Analysis for C/C++ on Build My question is about the second setting. I've enabled it and it takes a long time to run and it doesn't find much. Do you recommend enabling this feature? Why?

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