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• How do I programmatically create a bootable CD?

  - by Nicholas Flynt

  I'm using a barebones tutorial as the basis for an OS I'm working on, and it seems to be an older tutorial: it has be compiling the kernel down to a floppy image, and then loading it with GRUB. Basically, I still want to use GRUB, but I'd like to have my OS run from a CD instead. The main reason is that I don't actually have a real floppy drive available (I'm testing in VirtualBox currently) and I thus have no way to test my OS on real hardware. I've been poking around on the net, and I can find lots of utilities that create a bootable CD from a floppy image, but these all seem to require an actual floppy drive, plus it's not really what I'm looking for. I'd like to be able to end up with a bootable CD during my make step ideally, without needing to first place the image on a floppy, which seems rather pointless. I guess the easy way to answer this: How do I set up GRUB to read my kernel image from a CD? Will I need a special utility to do this from Windows? (The kernel can't compile itself yet, that's not for a looong while) Thanks!

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• Makefile trickery using VPATH and include.

  - by roe

  Hi, I'm playing around with make files and the VPATH variable. Basically, I'm grabbing source files from a few different places (specified by the VPATH), and compile them into the current directory using simply a list of .o-files that I want. So far so good, now I'm generating dependency information into a file called '.depend' and including that. Gnumake will attempt to use the rules defined so far to create the included file if it doesn't exist, so that's ok. Basically, my makefile looks like this. VPATH=A/source:B/source:C/source objects=first.o second.o third.o executable: $(objects) .depend: $(objects:.o=.c) $(CC) -MM $^ > $@ include .depend Now for the real question, can I suppress the generation of the .depend file in any way? I'm currently working in a clearcase environment - sloooow, so I'd prefer to have it a bit more under control when to update the dependency information. It's more or less an academic exercise as I could just wrap the thing in a script which is touching the .depend file before executing make (thus making it more recent than any source file), but it'd interesting to know if I can somehow suppress it using 'pure' make. I cannot remove the dependency to the source files (i.e. using simply .depend:), as I'm depending on the $^ variable to do the VPATH resolution for me. If there'd be any way to only update dependencies as a result of updated #include directives, that'd be even better of course.. But I'm not holding my breath for that one.. :)

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• C# Using Enumerable Range and Except with custom class to determine missing sequence number

  - by Jon

  I have a List<MyClass> The class is like this: private class MyClass { public string Name{ get; set; } public int SequenceNumber { get; set; } } I want to work out what Sequence numbers might be missing. I can see how to do this here however because this is a class I am unsure what to do? I think I can handle the except method ok with my own IComparer but the Range method I can't figure out because it only excepts int so this doesn't compile: Enumerable.Range(0, 1000000).Except(chqList, MyEqualityComparer<MyClass>); Here is the IComparer: public class MyEqualityComparer<T> : IEqualityComparer<T> where T : MyClass { #region IEqualityComparer<T> Members public bool Equals(T x, T y) { return (x == null && y == null) || (x != null && y != null && x.SequenceNumber.Equals(y.SequenceNumber)); } /// </exception> public int GetHashCode(T obj) { if (obj == null) { throw new ArgumentNullException("obj"); } return obj.GetHashCode(); } #endregion }

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• SQL GUID Vs Integer

  - by Dal

  Hi I have recently started a new job and noticed that all the SQL tables use the GUID data type for the primary key. In my previous job we used integers (Auto-Increment) for the primary key and it was a lot more easier to work with in my opinion. For example, say you had two related tables; Product and ProductType - I could easily cross check the 'ProductTypeID' column of both tables for a particular row to quickly map the data in my head because its easy to store the number (2,4,45 etc) as opposed to (E75B92A3-3299-4407-A913-C5CA196B3CAB). The extra frustration comes from me wanting to understand how the tables are related, sadly there is no Database diagram :( A lot of people say that GUID's are better because you can define the unique identifer in your C# code for example using NewID() without requiring SQL SERVER to do it - this also allows you to know provisionally what the ID will be.... but I've seen that it is possible to still retrieve the 'next auto-incremented integer' too. A DBA contractor reported that our queries could be up to 30% faster if we used the Integer type instead of GUIDS... Why does the GUID data type exist, what advantages does it really provide?... Even if its a choice by some professional there must be some good reasons as to why its implemented?

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• Overlapping matches with finditer() in Python

  - by Raphink

  Hi there, I'm using a regex to match Bible verse references in a text. The current regex is REF_REGEX = re.compile(r'(?<!\w)((?i)q(?:uote)?\s+)?((?:(?:[1-3]|I{1,3})\s*)?[A-Za-z]+)\.?(?:\s*(\d+)(?:[:.](\d+)(?:-(\d+))?)?)(?:\s+(?:(?i)(?:from\s+)|(?:in\s+)|(?P<lbrace>\())\s*(\w+)(?(lbrace)\)))?', re.UNICODE) This matches the following expressions fine: "jn 3:16": (None, 'jn', '3', '16', None, None, None), "matt. 18:21-22": (None, 'matt', '18', '21', '22', None, None), "q matt. 18:21-22": ('q ', 'matt', '18', '21', '22', None, None), "QuOTe jn 3:16": ('QuOTe ', 'jn', '3', '16', None, None, None), "q 1co13:1": ('q ', '1co', '13', '1', None, None, None), "q 1 co 13:1": ('q ', '1 co', '13', '1', None, None, None), "quote 1 co 13:1": ('quote ', '1 co', '13', '1', None, None, None), "quote 1co13:1": ('quote ', '1co', '13', '1', None, None, None), "jean 3:18 (PDV)": (None, 'jean', '3', '18', None, '(', 'PDV'), "quote malachie 1.1-2 fRom Colombe": ('quote ', 'malachie', '1', '1', '2', None, 'Colombe'), "quote malachie 1.1-2 In Colombe": ('quote ', 'malachie', '1', '1', '2', None, 'Colombe'), "cinq jn 3:16 (test)": (None, 'jn', '3', '16', None, '(', 'test'), "Q IIKings5.13-58 from wolof": ('Q ', 'IIKings', '5', '13', '58', None, 'wolof'), "This text is about lv5.4-6 in KJV only": (None, 'lv', '5', '4', '6', None, 'KJV'), but it fails to parse: "Found in 2 Cor. 5:18-21 ( Ministers": (None, '2 Cor', '5', '18', '21', None, None), because it returns (None, 'in', '2', None, None, None, None) instead. Is there a way to get finditer() to return all matches, even if they overlap, or is there a way to improve my regex so it matches this last bit properly? Thanks.

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• Compiling and linking libcurl to create a stand alone dll

  - by Haraldo

  Hi, I've managed to compile a dll with the necessary linked libraries (*.lib) and with CURL_STATICLIB set in the preprocessor section among other settings. I'm using "libcurl-7.19.3-win32-ssl-msvc.zip" package and compiling with VS 2008 express. This has been the first version I managed to get compiled properly with no link issues etc. The problem I have now is that my dll needs libcurl.dll to function and this is not ok. My dll needs to be independent. I have no idea how to implement this. I've taken all day just to get what I've got compiled. I've got runtime library set to Multi threaded dll (debug/release) respectively under C/C++ - code generation. I've a number of preprocessor set - CURL_STATICLIB being one of them. Configuration Type is set to Dynamic Library Use of MFC is set to Use MFC in a static library Additional Library Directories is set to the lib folders (debug/release) respectively. I've noticed there is a curllib_static.lib file which I've tried instead of curllib.lib as an additional dependency but it only compiles with the later. This is driving me nuts! So I guess I need some guidance as to how to make my dll completely static so it doesn't have any dependencies. I notice my dll is currently dependent on: CURLLIB.DLL MSVCR90D.DLL As I'm pretty new to C++ it could be a setting I'm missing in VS 2008 but I'm not sure. One person said I should be using a static library with *.a files (libcurl.a) etc but when I do this I get link errors which I haven't been able to resolve. Any guidance here would be much appreciated.

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• Hiding Command Prompt with CodeDomProvider

  - by j-t-s

  Hi All I've just got my own little custom c# compiler made, using the article from MSDN. But, when I create a new Windows Forms application using my sample compiler, the MSDOS window also appears, and if I close the DOS window, my WinForms app closes too. How can I tell the Compiler? not to show the MSDOS window at all? Thank you :) Here's my code: using System; namespace JTS { public class CSCompiler { protected string ot, rt, ss, es; protected bool rg, cg; public string Compile(String se, String fe, String[] rdas, String[] fs, Boolean rn) { System.CodeDom.Compiler.CodeDomProvider CODEPROV = System.CodeDom.Compiler.CodeDomProvider.CreateProvider("CSharp"); ot = fe; System.CodeDom.Compiler.CompilerParameters PARAMS = new System.CodeDom.Compiler.CompilerParameters(); // Ensure the compiler generates an EXE file, not a DLL. PARAMS.GenerateExecutable = true; PARAMS.OutputAssembly = ot; PARAMS.CompilerOptions = "/target:winexe"; PARAMS.ReferencedAssemblies.Add(typeof(System.Xml.Linq.Extensions).Assembly.Location); PARAMS.LinkedResources.Add("this.ico"); foreach (String ay in rdas) { if (ay.Contains(".dll")) PARAMS.ReferencedAssemblies.Add(ay); else { string refd = ay; refd = refd + ".dll"; PARAMS.ReferencedAssemblies.Add(refd); } } System.CodeDom.Compiler.CompilerResults rs = CODEPROV.CompileAssemblyFromFile(PARAMS, fs); if (rs.Errors.Count > 0) { foreach (System.CodeDom.Compiler.CompilerError COMERR in rs.Errors) { es = es + "Line number: " + COMERR.Line + ", Error number: " + COMERR.ErrorNumber + ", '" + COMERR.ErrorText + ";" + Environment.NewLine + Environment.NewLine; } } else { // Compilation succeeded. es = "Compilation Succeeded."; if (rn) System.Diagnostics.Process.Start(ot); } return es; } } }

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• Hiding Command Prompt with CodeDomProvider

  - by j-t-s

  Hi All I've just got my own little custom c# compiler made, using the article from MSDN. But, when I create a new Windows Forms application using my sample compiler, the MSDOS window also appears, and if I close the DOS window, my WinForms app closes too. How can I tell the Compiler? not to show the MSDOS window at all? Thank you :) Here's my code: using System; namespace JTS { public class CSCompiler { protected string ot, rt, ss, es; protected bool rg, cg; public string Compile(String se, String fe, String[] rdas, String[] fs, Boolean rn) { System.CodeDom.Compiler.CodeDomProvider CODEPROV = System.CodeDom.Compiler.CodeDomProvider.CreateProvider("CSharp"); ot = fe; System.CodeDom.Compiler.CompilerParameters PARAMS = new System.CodeDom.Compiler.CompilerParameters(); // Ensure the compiler generates an EXE file, not a DLL. PARAMS.GenerateExecutable = true; PARAMS.OutputAssembly = ot; PARAMS.CompilerOptions = "/target:winexe"; PARAMS.ReferencedAssemblies.Add(typeof(System.Xml.Linq.Extensions).Assembly.Location); PARAMS.LinkedResources.Add("this.ico"); foreach (String ay in rdas) { if (ay.Contains(".dll")) PARAMS.ReferencedAssemblies.Add(ay); else { string refd = ay; refd = refd + ".dll"; PARAMS.ReferencedAssemblies.Add(refd); } } System.CodeDom.Compiler.CompilerResults rs = CODEPROV.CompileAssemblyFromFile(PARAMS, fs); if (rs.Errors.Count > 0) { foreach (System.CodeDom.Compiler.CompilerError COMERR in rs.Errors) { es = es + "Line number: " + COMERR.Line + ", Error number: " + COMERR.ErrorNumber + ", '" + COMERR.ErrorText + ";" + Environment.NewLine + Environment.NewLine; } } else { // Compilation succeeded. es = "Compilation Succeeded."; if (rn) System.Diagnostics.Process.Start(ot); } return es; } } }

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• How to make a good programming interview?

  - by luckyluke

  I am doing interviews with from time to time to recruit some not bad people. And I really think I AM NOT doing to correct Job. I work in a company when We have to do a lot o DB programming, .NET programming, Java programming, so we need people who are open minded and not focused on a particular tech. Afterall language is a notation, You have to understand what is going under the hood. I ask people about their project, ask them some coding questions (believe me a SQL question involving a CROSS JOIN is hard), let them write some code, ask them about oo design, ask them how they update their knowledge, and stay up to date, do they have FUN when they code (at least sometimes). Hell I even give them a coding solution for home (3 hours max) to see how they think and code. And yet my hit rate at hiring junior member (those who live over the initial 3 months) is just about 33%. So my question, how do YOU make the good interviews, because I think my hit rate is to low? Do you have any best-practices(should be at least 60-70%)? p.s. And i noticed that: the best programmers are lazy, but motivated, just being lazy is not enough:) But people who write the best code are attentive to details:)

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• How to have a policy class implement a virtual function?

  - by dehmann

  I'm trying to design a policy-based class, where a certain interface is implemented by the policy itself, so the class derives from the policy, which itself is a template (I got this kind of thinking from Alexandrescu's book): #include <iostream> #include <vector> class TestInterface { public: virtual void test() = 0; }; class TestImpl1 { public: void test() {std::cerr << "Impl1" << std::endl;} }; template<class TestPolicy> class Foo : public TestInterface, TestPolicy { }; Then, in the main() function, I call test() on (potentially) various different objects that all implement the same interface: int main() { std::vector<TestInterface*> foos; foos.push_back(new Foo<TestImpl1>()); foos[0]->test(); delete foos[0]; return 0; } It doesn't compile, though, because the following virtual functions are pure within ‘Foo<TestImpl1>’: virtual void TestInterface::test() I thought TestInterface::test() is implemented because we derive from TestImpl1?

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• Modifying UINavigation Bar Buttons in SubViews

  - by james

  I'm having trouble trying to modify the navigation bar in the subview portion of my application. self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(add_Clicked:)] autorelease]; I have no issues modifying the navigation bar in any of my UIViewControllers classes. The simplified application class outline is as such: AppDelegate - UIViewControllerA (has a left and a right navigationBarButton) - Subview is displayed when a SegmentControl is selected. (Within the subview, I'm trying to modify the right NavigationBarButton that is displayed) [self.view addSubview:newControllerName.view]; Methods I have attempted: Trying to set self.navigationItem.rightBarButtonItem within my subview to a new UIBarButtonItem. Creating a pointer to UIViewControllerA within my AppDelegate. The UIViewControllerA contains a function setNavButton I wrote to set the rightBarButtonItem to a button. Then I am referencing the AppDelegate's reference to UIViewControllerA and attempting to call setNavButton. I included a NSLog call to see if that function is being called and it is executing but the NavigationBar isn't being modified. I'm trying to avoid having to push a UIViewController after the SegmentControl is clicked in UIViewControllerA so that I can simulate the SegmentControl as tabs. I'm not getting any errors during compile or run time. Anyone have any ideas?

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• HtmlAgilityPack - Vs 2010 - c# ASP - File Not found

  - by Janosch Geigowskoskilu

  First, I've already searched the web & StackOverflow for hours, and i did find a lot about troubleshooting HtmlAgilityPack and tried most of these but nothing worked. The Situation: I'm developing a C# ASP .NET WebPart in SharePoint Foundation. Everything works fine, now I want to Parse a HTML Page to get all ImagePaths and save the Images on HD/Temp. To do that I was downloading HtmlAgilityPack, current version, add reference to Project, everything looks OK, IntelliSense works fine. The Exception: But when I want to run the section where HtmlAgilityPack should be used my Browser shows me a FileNotFoundException - The File or Assembly could not be found. What I tried: After first searches i tried to include v1.4.0 of HtmlAgilityPack cause I read that the current version in some case is not really stable. This works fine to until the point I want to use HtmlAgilityPack, the same Exception. I also tried moving the HtmlAgilityPack direct to the Solution directory, nothing changed. I tried to insert HtmlAgilityPack via using and I tried direct call e.g. HtmlAgilityPack.HtmlDocument. Conclusion : When I compile no error occurs, the reference is set correct. When I trace the HtmlAgilityPack.dll with ProcMon the Path is shown correct, but sometimes the Result is 'File Locked with only Readers' but I don't know enough about ProcMon to Know what this means or if this is critical. It couldn't have something to do with File Permissions because if I check the DLL the permissions are all given.

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• Linking the Linker script file to source code

  - by user304097

  Hello , I am new to GNU compiler. I have a C source code file which contains some structures and variables in which I need to place certain variables at a particular locations. So, I have written a linker script file and used the __ attribute__("SECTION") at variable declaration, in C source code. I am using a GNU compiler (cygwin) to compile the source code and creating a .hex file using -objcopy option, but I am not getting how to link my linker script file at compilation to relocate the variables accordingly. I am attaching the linker script file and the C source file for the reference. Please help me link the linker script file to my source code, while creating the .hex file using GNU. /*linker script file*/ /*defining memory regions*/ MEMORY { base_table_ram : org = 0x00700000, len = 0x00000100 /*base table area for BASE table*/ mem2 : org =0x00800200, len = 0x00000300 /* other structure variables*/ } /*Sections directive definitions*/ SECTIONS { BASE_TABLE : { } > base_table_ram GROUP : { .text : { } { *(SEG_HEADER) } .data : { } { *(SEG_HEADER) } .bss : { } { *(SEG_HEADER) } } > mem2 } C source code: const UINT8 un8_Offset_1 __attribute__((section("BASE_TABLE"))) = 0x1A; const UINT8 un8_Offset_2 __attribute__((section("BASE_TABLE"))) = 0x2A; const UINT8 un8_Offset_3 __attribute__((section("BASE_TABLE"))) = 0x3A; const UINT8 un8_Offset_4 __attribute__((section("BASE_TABLE"))) = 0x4A; const UINT8 un8_Offset_5 __attribute__((section("BASE_TABLE"))) = 0x5A; const UINT8 un8_Offset_6 __attribute__((section("SEG_HEADER"))) = 0x6A; My intention is to place the variables of section "BASE_TABLE" at the address defined i the linker script file and the remaining variables at the "SEG_HEADER" defined in the linker script file above. But after compilation when I look in to the .hex file the different section variables are located in different hex records, located at an address of 0x00, not the one given in linker script file . Please help me in linking the linker script file to source code. Are there any command line options to link the linker script file, if any plese provide me with the info how to use the options. Thanks in advance, SureshDN.

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• Json HTTP Module stream issue

  - by Justin

  Hey, I have an HTTP Module that I use to clean up the JSON returned by my web service (see http://www.codeproject.com/KB/webservices/ASPNET_JSONP.aspx?msg=3400287#xx3400287xx for an example of this.) Basically it relates to calling cross-domain JSON web services from javascript. There is this JsonHttpModule which uses a JsonResponseFilter Stream class to write out the JSON and the overloaded Write method is supposed to wrap the name of the callback function around the JSON, otherwise the JSON errors out as needing a label. However, if the JSON is really long, the Write method in the Stream class is called multiple times, causing the callback function to incorrectly get inserted midway through the JSON. Is there a way in the Stream class to wrap the callback function around the stream at the end or to specify that it write all of the JSON in 1 Write method instead of in chunks?? Here's where it calls the JsonResponseFilter in the JsonHttpModule: public void OnReleaseRequestState(object sender, EventArgs e) { HttpApplication app = (HttpApplication)sender; if (!_Apply(app.Context.Request)) return; // apply response filter to conform to JSONP app.Context.Response.Filter = new JsonResponseFilter(app.Context.Response.Filter, app.Context); } Here's the Write method in the JsonResponseFilter Stream class that gets called multiple times: public override void Write(byte[] buffer, int offset, int count) { var b1 = Encoding.UTF8.GetBytes(_context.Request.Params["callback"] + "("); _responseStream.Write(b1, 0, b1.Length); _responseStream.Write(buffer, offset, count); var b2 = Encoding.UTF8.GetBytes(");"); _responseStream.Write(b2, 0, b2.Length); } Thanks for any help! Justin

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• Qt - no such signal error

  - by bullettime

  I'm trying to trigger a signal when a double click happens in one of the draggable widgets on the fridge magnets example. Here's the changes I made to the example source: DragLabel: class DragLabel : public QLabel { public: DragLabel(const QString &text, QWidget *parent); QString labelText() const; public slots: void testSlot(){qDebug()<<"testSlot";} //<-- implemented this slot protected: void mouseDoubleClickEvent(QMouseEvent *ev){emit testSignal();} //<-- overriden this method private: QString m_labelText; signals: void testSignal(); //<-- added this signal }; The only thing I changed in the implementation file is adding connect(this,SIGNAL(testSignal()),this,SLOT(testSlot())); to DragLabel's constructor. Trying to compile the project resulted in 'undefined reference to `DragLabel::testSignal()' and 'collect2: ld returned 1 exit status' errors. When I comment out the call to the signal, it compiles and runs, but gives off 'Object::connect: No such signal QLabel::testSignal() in draglabel.cpp' warning in the application output. Apparently testSignal() isn't being recognized as a signal. What am I missing?

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• Optimize Use of Ramdisk for Eclipse Development

  - by Eric J.

  We're developing Java/SpringSource applications with Eclipse on 32-bit Vista machines with 4GB RAM. The OS exposes roughly 3.3GB of RAM due to reservations for hardware etc. in the virtual address space. I came across several Ramdisk drivers that can create a virtual disk from the OS-hidden RAM and am looking for suggestions how best to use the 740MB virtual disk to speed development in our environment. The slowest part of development for us is compiling as well as launching SpringSource dm Server. One option is to configure Vista to swap to the Ramdisk. That works, and noticeably speeds up development in low memory situations. However, the 3.3GB available to the OS is often sufficient and there are many situations where we do not use the swap file(s) much. Another option is to use the Ramdisk as a location for temporary files. Using the Vista mklink command, I created a hard link from where the SpringSource dm Server's work area normally resides to the Ramdisk. That significantly improves server startup times but does nothing for compile times. There are roughly 500MB still free on the Ramdisk when the work directory is fully utilized, so room for plenty more. What other files/directories might be candidates to place on the Ramdisk? Eclipse-related files? (Parts of) the JDK? Is there a free/open source tool for Vista that will show me which files are used most frequently during a period of time to reduce the guesswork?

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• Java EE6 App + EJB in Glassfish 3.0/Netbeans 6.8?

  - by egbokul

  Has anyone got this configuration working? Latest Netbeans, latest Glassfish, I created an EJB project, also an EE Application. The EJB in itself builds & deploys to Glassfish OK. Now when I want to reference the EJB, I have to add the EJB jar to the EE Application path, if I don't do this the code does not compile. But, the EJB jar gets packaged in the App jar and as a result when I try to deploy the app to Glassfish it says: "java.lang.IllegalArgumentException: Sniffers with type [ejb] and type [appclient] should not claim the archive at the same time. Please check the packaging of your archive" How do I tell Netbeans NOT TO package the EJB in the App jar? Or is the problem somewhere else? btw. if I remove the EJB manually from the JAR then the app deploys successfully (with asadmin deploy), but when I try to run it with appclient, I get a NullPointerException. Surely there must be a solution to this, I thought Netbeans was for web application development after all...

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• Coda Slider scroll effect. Click button and change panel.

  - by vatismarty

  <?php echo $javascript->link('jquery-easing-1.3.pack'); ?> <?php echo $javascript->link('jquery-easing-compatibility.1.2.pack'); ?> <?php echo $javascript->link('coda-slider.1.1.1.pack'); ?> <script type="text/javascript"> var theInt = null; var $crosslink, $navthumb; var curclicked = 0; theInterval = function(cur){ clearInterval(theInt); if( typeof cur != 'undefined' ) curclicked = cur; $crosslink.removeClass("active-thumb"); $navthumb.eq(curclicked).parent().addClass("active-thumb"); $(".stripNav ul li a").eq(curclicked).trigger('click'); theInt = setInterval(function(){ $crosslink.removeClass("active-thumb"); $navthumb.eq(curclicked).parent().addClass("active-thumb"); $(".stripNav ul li a").eq(curclicked).trigger('click'); curclicked++; if( 6 == curclicked ) curclicked = 0; }, 3000); }; $(function(){ $("#main-photo-slider").codaSlider(); $navthumb = $(".nav-thumb"); $crosslink = $(".cross-link"); $navthumb .click(function() { var $this = $(this); theInterval($this.parent().attr('href').slice(1) - 1); return false; }); theInterval(); $(".stripViewer").mouseover(function(e) { $(this).stop(); }); }); </script> The actual slider is in this page. PROBLEM : The slider does not work when i click on the 2, 3, and 4th buttons. 1st button shows weird behaviour. Please help me fix this bug. The slider should take me to panel 3 if i click button 3

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• problems with openGl on eclipse

  - by lego69

  I'm working on Windows XP I have portable version of Eclipse Galileo, but I didn't find there glut so I decided to add it using this link I made all steps and and now I'm trying to compile this code #include "GL/glut.h" #include "GL/gl.h" #include "GL/glu.h" /////////////////////////////////////////////////////////// // Called to draw scene void RenderScene(void) { // Clear the window with current clearing color glClear(GL_COLOR_BUFFER_BIT); // Flush drawing commands glFlush(); } /////////////////////////////////////////////////////////// // Setup the rendering state void SetupRC(void) { glClearColor(0.0f, 0.0f, 1.0f, 1.0f); } /////////////////////////////////////////////////////////// // Main program entry point void main(int argc, char* argv[]) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB); glutInitWindowSize(800,600); glutCreateWindow("Simple"); glutDisplayFunc(RenderScene); SetupRC(); glutMainLoop(); } and I have this errors Simple.o: In function `RenderScene': C:/Documents and Settings/Administrator/Desktop/workspace/open/Debug/../Simple.c:16: undefined reference to `_imp__glClear' C:/Documents and Settings/Administrator/Desktop/workspace/open/Debug/../Simple.c:20: undefined reference to `_imp__glFlush' Simple.o: In function `SetupRC': C:/Documents and Settings/Administrator/Desktop/workspace/open/Debug/../Simple.c:27: undefined reference to `_imp__glClearColor' Simple.o: In function `main': C:/Documents and Settings/Administrator/Desktop/workspace/open/Debug/../Simple.c:34: undefined reference to `glutInit' C:/Documents and Settings/Administrator/Desktop/workspace/open/Debug/../Simple.c:35: undefined reference to `glutInitDisplayMode' C:/Documents and Settings/Administrator/Desktop/workspace/open/Debug/../Simple.c:36: undefined reference to `glutInitWindowSize' C:/Documents and Settings/Administrator/Desktop/workspace/open/Debug/../Simple.c:37: undefined reference to `glutCreateWindow' C:/Documents and Settings/Administrator/Desktop/workspace/open/Debug/../Simple.c:38: undefined reference to `glutDisplayFunc' C:/Documents and Settings/Administrator/Desktop/workspace/open/Debug/../Simple.c:42: undefined reference to `glutMainLoop' collect2: ld returned 1 exit status please can somebody help me, thanks in advance

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• when updating location.hash in Chrome the jQuery animation "freezes" for a second

  - by ubunut

  I'm trying to create a sort of "virtual gallery". I'm using Coda Slider 2.0 & jQuery v1.4.2 It behaves perfectly in IE, FF & Safari, but Chrome seems to reload/hang for a second when setting location.hash. This causes the jQuery animation to freeze for a second :S Example: http://hardyernst.dk/gallery.html try clicking on the navigation links above the pictures. The jQuery code that is being executed when clicking a navigation link: $('#coda-nav-' + sliderCount + ' a').each(function(z) { // What happens when a nav link is clicked $(this).bind("click", function() { offset = -(panelWidth*z); navClicks++; $(this).addClass('current').parents('ul').find('a').not($(this)).removeClass('current'); alterPanelHeight(z); currentPanel = z + 1; $('.panel-container', slider).stop().animate({ left: offset }, settings.slideEaseDuration, settings.slideEaseFunction, function(){ if (!settings.crossLinking) { return false; } // Don't change the URL hash unless cross-linking is specified }); }); }); if I add return false; at the end of the function. The animation will slide smoothly :)... BUT as you might have guessed the location.hash value remains unchanged :( I have tried setting the location.hash earlier in the function alas it did not change the behavior in Chrome Would be immensely grateful for any help :) Regards Ubunut

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• How can I reuse .NET resources in multiple executables?

  - by Brandon

  I have an existing application that I'm supposed to take and create a "mini" version of. Both are localized apps and we would like to reuse the resources in the main application as is. So, here's the basic structure of my apps: MainApplication.csproj /Properties/Resources.resx /MainUserControl.xaml (uses strings in Properties/Resources.resx) /MainUserControl.xaml.cs MiniApplication.csproj link to MainApplication/Properties/Resources.resx link to MainApplication/MainUserControl.xaml link to MainApplication/MainUserControl.xaml.cs MiniApplication.xaml (tries to use MainUserControl from MainApplication link) So, in summary, I've added the needed resources and user control from the main application as links in the mini application. However, when I run the mini application, I get the following exception. I'm guessing it's having trouble with the different namespaces, but how do I fix? Could not find any resources appropriate for the specified culture or the neutral culture. Make sure \"MainApplication.Properties.Resources.resources\" was correctly embedded or linked into assembly \"MiniApplication\" at compile time, or that all the satellite assemblies required are loadable and fully signed. FYI, I know I could put the user control in a user control library but the problem is that the mini application needs to have a small footprint. So, we only want to include what we need.

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• C question: error: expected ')' before '*' token

  - by lhw

  ===EDIT I apologize for not putting the pcb struct into the code snippet. There is a struct called pcb defined in above the two structs I originally posted. Namely, typedef struct{ UINT32 proc; struct pcb *link; }pcb; Hi, I asked a question regarding structs in C a few minutes ago and got an answer blazing fast. But now I'm facing another problem, namely the error in the title of this question. I'm trying to implement a simple priority queue in C using arrays of queues. However, when I try to declare a function on pcb_pQ structure, I get the above error. I have the structs clearly defined in the heard file. In the header file: typedef struct{ pcb *head; pcb *tail; SINT32 size; } pcb_Q; typedef struct pcb_pQ { pcb_Q queues[5]; SINT32 size; } pcb_pQ; Function prototype in header file: /*priority queue operations*/ VOID pcb_pq_enqueue(pcb_pQ*, pcb*); Function impelmentation in .c file: VOID pcb_pq_enqueue(pcb_pQ* pcb_pQ, pcb* pcb) { pcb_Q* pcb_Q_p; int priority; priority = pcb->proc_priority; pcb_Q_p = &pcb_pQ->queues[priority]; pcb_enqueue(pcb_Q_p, pcb); } When I try to compile the above code, I get an "error: expected ')' before '*' token". This error is pointing to the function signature in the .c file, namely VOID pcb_pq_enqueue(pcb_pQ* pcb_pQ, pcb* pcb) { But I am not sure why I am getting this error, could someone give me a hand? Thanks a lot.

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• Print a string that contains a certain pattern in Java

  - by jjpotter

  I am trying to find a regular expression within a line of a .csv file, so I can eventually save all the matches to another file, and lose all the other junk. So a line in my file might look like: MachineName,User,IP,VariableData,Location The VariableData is what I want to match, and if there's a match, print the line. I am using a pattern for this because I only want 3 out of 10 of variations of VariableData, and out of those 3, they are numbered differently(example, "pc104, pccrt102, pccart65"). I am trying to do this using the Scanner Class and keeping it simple as possible so I can understand it. Here is where I was heading with this...(the pattern isn't complete, just have it like this for testing). import java.io.File; import java.util.Scanner; import java.util.regex.Pattern; public class pcv { public static void main(String[] args) { File myFile = new File("c:\\temp\\report.csv"); Pattern myPat = Pattern.compile("pc"); try{ Scanner myScan = new Scanner(myFile); while(myScan.hasNext()){ if(myScan.hasNext(myPat)){ System.out.println("Test"); } } }catch(Exception e){ } } } This code loops, im guessing the .hasNext() methods are resetting themselves. I've played around with the Matcher class a little bit, but only found a way to match the expression but not get the whole line. My other throught was maybe somehow count the line that contains the pattern, then go back and print the line that corresponds to the counts.

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• What do these errors mean? ISOC++ forbids assignment of arrays...

  - by xunlinkx

  I'm trying to compile some code on one of our systems for our DBA...I've edited the makefiles to include the pertinent libraries listed in the documentation, but I keep getting these errors... Can you discern any obvious problems from my command lines in reference to the errors listed? Thank you! make -f /u01/app/banner/ban8/TEST3/links/Makefile_tm_linux64_redhat5_ban8.mk gcc -m64 -D_NOFIXARGPTR -fpic -shared -DTMCILIB_EXPORTS -D_TMUNICODE -I/usr/local/ban_icu -I/usr/local/src/icu/source/i18n/ -I/usr/local/src/icu/source/common/ -I/usr/local/src/icu/source/extra/ustdio/ -I/usr/local/src/icu/source/io -L/usr/lib64 -L/usr/lib -L/usr/local/src/icu/source/data/ -L/usr/local/src/icu/source/data/out/ -L/usr/local/src/icu/source/tools/toolutil/ -L/usr/lib/im/icuconv/ -L/usr/local/lib/ -L. -licui18n -licudata -licuuc -licu-toolutil -licuio msgfmttm.cpp umsgtm.cpp tmcilib.cpp -o /u01/app/banner/ban8/TEST3/general/exe/libtmciuc.so umsgtm.cpp: In function ‘void fixArgPtr(const UChar*, __va_list_tag (*)[1])’: umsgtm.cpp:158: error: array must be initialized with a brace-enclosed initializer umsgtm.cpp:194: error: ISO C++ forbids assignment of arrays umsgtm.cpp: In function ‘int32_t tmumsg_vformat(void*, UChar, int32_t, __va_list_tag*, UErrorCode*)’: umsgtm.cpp:305: error: cannot convert ‘__va_list_tag**’ to ‘__va_list_tag ()[1]’ for argument ‘2’ to ‘void fixArgPtr(const UChar, __va_list_tag (*)[1])’ tmcilib.cpp: In function ‘int tmprintf(TMBundle*, const UChar*, ...)’: tmcilib.cpp:743: error: array must be initialized with a brace-enclosed initializer tmcilib.cpp: In function ‘int tmfprintf(TMBundle*, UFILE*, const UChar*, ...)’: tmcilib.cpp:757: error: array must be initialized with a brace-enclosed initializer tmcilib.cpp: In function ‘int tmsprintf(TMBundle*, UChar*, const UChar*, ...)’: tmcilib.cpp:808: error: array must be initialized with a brace-enclosed initializer

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• Why did this work with Visual C++, but not with gcc?

  - by Carlos Nunez

  I've been working on a senior project for the last several months now, and a major sticking point in our team's development process has been dealing wtih rifts between Visual-C++ and gcc. (Yes, I know we all should have had the same development environment.) Things are about finished up at this point, but I ran into a moderate bug just today that had me wondering whether Visual-C++ is easier on newbies (like me) by design. In one of my headers, there is a function that relies on strtok to chop up a string, do some comparisons and return a string with a similar format. It works a little something like the following: int main() { string a, b, c; //Do stuff with a and b. c = get_string(a,b); } string get_string(string a, string b) { const char * a_ch, b_ch; a_ch = strtok(a.c_str(),","); b_ch = strtok(b.c_str(),","); } strtok is infamous for being great at tokenizing, but equally great at destroying the original string to be tokenized. Thus, when I compiled this with gcc and tried to do anything with a or b, I got unexpected behavior, since the separator used was completely removed in the string. Here's an example in case I'm unclear; if I set a = "Jim,Bob,Mary" and b="Grace,Soo,Hyun", they would be defined as a="JimBobMary" and b="GraceSooHyun" instead of staying the same like I wanted. However, when I compiled this under Visual C++, I got back the original strings and the program executed fine. I tried dynamically allocating memory to the strings and copying them the "standard" way, but the only way that worked was using malloc() and free(), which I hear is discouraged in C++. While I'm curious about that, the real question I have is this: Why did the program work when compiled in VC++, but not with gcc? (This is one of many conflicts that I experienced while trying to make the code cross-platform.) Thanks in advance! -Carlos Nunez

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