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• Compiling C Source with Makefile in Windows

  - by humoeba

  I'm trying to compile a downloaded program in Windows. The program is usually run in Linux, but is programmed to also run in Windows (the code has #if defined(_WIN32)'s in it, and claims to work with borland free tools). When I try to use make from the command line, it tells me "Incorrect command line argument: -C". In the makefile, there are many lines that say "make -C" followed by a directory name. Does this syntax not work in Windows? What is a correct way to do this? Is there any way to compile this for native use in Windows with this makefile?

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• Who plans to go back to using Web Applications in ASP.NET 4.0?

  - by Banzor

  So, it looks like Microsoft has gone back to pushing Web Application Projects* in ASP.NET 4.0. If you are like me, you converted to Website Projects in 2.0 and have never looked back. I recently spent some time trying to convert a Website Project to Web Application Project and was surprised at how tedious it was. So I am wondering what everyone is planning to do in VS 2010? Also, feel free to mention what you use now. Maybe I am the only sucker that converted to using Website Projects in 2.0... *Excluding MVC since it is the only option there

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• Using system time directly to get random numbers

  - by Richard Mar.

  I had to return a random element from an array so I came up with this placeholder: return codes[(int) (System.currentTimeMillis() % codes.length - 1)]; Now than I think of it, I'm tempted to use it in real code. The Random() seeder uses system time as seed in most languages anyway, so why not use that time directly? As a bonus, I'm free from the worry of non-random lower bits of many RNGs. It this hack coming back to bite me? (The language is Java if that's relevant.)

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• Where can I find "reference barcodes" to verify barcode library output?

  - by mjustin

  This question is not about 'best' barcode library recommendation, we use various products on different platforms, and need a simple way to verify if a given barcode is correct (according to its specification). There are some free online bar code generators in the Internet, and I found many differences between their output and our library output regarding graphics and text field below the code. Now I am not sure which one is wrong, and before filing bug report I want to make sure how the correct barcode should look like. We mainly need Code128 and UCC/EAN-128 with A/B/C subcodes. Which resource would you suggest?

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• The ** idiom in C++ for object construction

  - by bobobobo

  In a lot of C++ API'S (COM-based ones spring to mind) that make something for you, the pointer to the object that is constructed is usually required as a ** pointer (and the function will construct and init it for you) You usually see signatures like: HRESULT createAnObject( int howbig, Object **objectYouWantMeToInitialize ) ; -- but you seldom see the new object being passed as a return value. Besides people wanting to see error codes, what is the reason for this? Is it better to use the ** pattern rather than a returned pointer for simpler operations such as: wchar_t* getUnicode( const char* src ) ; Or would this better be written as: void getUnicode( const char* src, wchar_t** dst ) ; The most important thing I can think of is to remember to free it, and the ** way, for some reason, tends to remind me that I have to deallocate it as well.

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• Adapting methods which return true/false

  - by James P.

  What's the best practise when adapting C-style functions which return a true/false to Java? Here's a simple method to illustrate where the problem lies. public static boolean fileNameEndsWithExtension( String filename, String fileExtension) { return filename.endsWith( fileExtension ); } Note that there's probably a more elegant way of filtering files (feel free to comment on this). Anyway, if filename is a null value, does one: Return a false if filename is null? If so, how does one go about distinguishing between the case where filename is null and the case where the String or file name doesn't end with a given file extension? Change the return type to the wrapper class Boolean which allows a null value. Throw an Exception and force the programmer to make sure that a null value is never passed to the method? Use another solution?

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• Can I tell Borland C++ Builder to copy a file somewhere else after it is built?

  - by MrVimes

  I have two computers. One is intended to be left 'free' for high-performance activities (such as playing games) The other is my 'all purpose' computer where I install all the apps I use for creating things, and so on. On the second computer I use Codegear C++ Builder to work on an app that I use on the first computer. If I have BCB compile to comp 1 it is hopeless. It becomes unresponsive. It compiles locally very quickly. So what I do is compile locally and then copy the exe to the other machine. Well, I'm all for streamlining processes, so I want a way to compile on PC2 and use on PC1 without any intermediate steps. So is it possible to have BCB do the compiling on PC2 and create a local exe file, then copy the file to PC 1?

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• Non-deprecated replacement for NSCalibratedBlackColorSpace?

  - by uliwitness

  I'm implementing my own NSBitmapImageRep (to draw PBM image files). To draw them, I'm using NSDrawBitmap() and passing it the NSCalibratedBlackColorSpace (as the bits are 1 for black, 0 for white). Trouble is, I get the following warning: warning: 'NSCalibratedBlackColorSpace' is deprecated However, I couldn't find a good replacement for it. NSCalibratedWhiteColorSpace gives me an inverted image, and there seems to be no way to get NSDrawBitmap() to use a CGColorSpaceRef or NSColorSpace that I could create as a custom equivalent to NSCalibratedBlackColorSpace. I've found a (hacky) way to shut up the warning (so I can still build warning-free until a replacement becomes available) by just passing @"NSCalibratedBlackColorSpace" instead of the symbolic constant, but I'd rather apply a correct fix. Anybody have an idea?

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• Force Response to Download File(s) to Desktop with Ruby?

  - by viatropos

  I was thinking about making a little crop/resize batch processor online, and wanted to know if there was a way for me to do the following: upload image and specify dimensions click "process" and remote app resizes image image downloads automatically locally to wherever it was I uploaded it (say from my desktop), but with a new name (based on the time for example). This would make it so I could host a free image processor that never stored any data other than tempfiles. Is that possible? Something like Rails' send_file method, but I'm using Sinatra and am looking for something in pure ruby. What's the basic concept behind this? What if I wanted to do this for multiple files? Åssuming I can get multiple files uploaded no problem, how can I download all of them automatically?

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• Is it possible to have SNMP Agent without MIB’s support??

  - by Divya mohan Singh

  hii, i am working on SNMP from last few days,i have develope a small application(SNMP Agent) which * Run on 161 port. * Have a tree structured OID support. * Respond to all Get,GetNext,Set Pdu Request types. * Tested with some SNMP Managers(free available) by get and set the values of the OID's. BUT,now question is when i tried it with Cacti it will not respond anything,but detect windows snmp service..it just respond to the requests of the SNMP Managers. So,Is it mandatory to provide mib with SNMP Agent??.

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• practicing C over the summer

  - by Jefferson Shawn

  Hi, I'm a student with a bit of experience in Java and C++ (one semester each) Currently, I'm going through K&R and working on the exercises in the book. However, I was thinking of what I could work on over the summer since I'm almost done with K&R and I will have a lot of free time soon. I really like building command line applications so I was thinking of getting involved with the coreutils project somehow. My question is, is it too early for me to be messing with coreutils? Should I be working on something a bit simpler perhaps? I'm a bit new with the Linux/Open source world if that matters but I'm really enjoying it. I've done some project euler problems and I don't really like it that much.

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• What Windows Form control would be a good fit for this use case?

  - by Sergio Tapia

  I'm going create an open source Help desk solution free of charge for small to medium businesses to use. I'm currently working on the client application. I want to have a list of tickets that have been opened by the user. So it would be like a table TicketsByUser: Ticket Number | Type | Description | Date | Handled? 123456 | Hardware | My mouse broke | 10/20/2010 | No 123456 | Hardware | My mouse broke | 10/20/2010 | Yes I was thinking of using ListView because of it's name, but I have zero experience with it, so maybe it's not what I'm looking for. I'm going to be pulling the data from a WCF service which in turn pulls it from a MS SQL database.

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• How can I take eclipse out of MDI mode?

  - by user51189

  Does anyone know of a way to make Eclipse an SDI application rather than an MDI one? SDI - Single document interface, each pane is its own window MDI - Multiple document interface, all of the panes are stuck inside one "master" window. Eclipse is an MDI application. All of the little panes (like the call stack, variable viewer, ect) are part of the one master Eclipse window. Rather than having all of the windows stuck inside one master "eclipse" window, I'd like them to all be their own free-floating windows.

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• How to implement copy protection of content in an open source application?

  - by Lococo

  I have an idea for an open source app -- the app would be free, but I would charge a small fee for data that a customer would order. For instance, let's say I'm writing a map application. I'd give the app away, make it open-source, but I would like to sell various maps to individual users. Is there a way to protect the data in such a way that makes it very difficult for someone to simply take the map they bought and distribute it to others? Is this feasible for an open source app?

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• Please help me to resolve my ajax error

  - by Rajesh Rolen- DotNet Developer

  i am using asp.net (.net framework 2.0) i am getting below error for my ajax popup extender error : Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled. Details: Error parsing near 'The server rejected '. actually is not giving me error on localhost, i have uploaded it on 2 other different server on 1 server its working fine but on other server its giving me above error. (on server where is working fine has got windows 2000 and on which its giving error its ms windows 2003). this is link where its giving me error : highschoolers its on "Join new for free" button ..

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• Which Java MVC frameworks integrate easily with StringTemplate?

  - by Daniel Jomphe

  It's hard to see how StringTemplate integrates easily (or not) with popular Java web MVC frameworks. Which Java MVC frameworks integrate easily with StringTemplate? A good answer: mentions one solution to integrate with a framework, includes a link to something useful and applicable, like: a tutorial, or documentation, or a reference to source code: free, and open source or public domain. Readers/Voters, please vote for a solution if you know it's true and great. In the scope of this question, I am not interested in any other templating engine than StringTemplate.

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• How to refresh a folder's data in asp.net 2.0 using c#

  - by vedactive

  Again i rewrite my question with more details i.e. I am developing a website in Asp.net 2.0 in that i'm tracking the user's some details like their id,no of page hitted and time of hitting etc, in a LogfileDate(the LogfileDate contains whole day summary of all users) saved inside a folder(Folder is inside my project). And at another day when a new logfileDate created i want to mail the previous day Logfile and delete that file after sending. Everything happened but when It is going to delete its shows file is accessed by another process. So I need to refresh that folder after sending mail so that it got free with buffer. I'm not using IIS and i dont want it to use.

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• which technology is best for a Facebook application Ruby on Rails or C# and ASP?

  - by Johnny

  hi, My friend and I want to write a Facebook application. We've narrowed down the list of possible technologies to Ruby on Rails and C# with ASP. Here are the pros and cons we've thought of. Cons: ASP - proprietary tools like Visual Studio etc. cost (lots of) money. We both don't know ASP (although we're not bad at C#). RoR - It's scripting so might be harder to maintain. My friend doesn't know RoR at all (but he's a fairly proficient programmer so will probably be able to pick it up quickly). Pros: ASP - Facebook has an official SDK for .NET. RoR - I know RoR. It's open source, free and has fast development time. What says the community? Is there something we haven't thought of?

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• Which Subversion do I install for Windows?

  - by johnny

  I was reading this article on Coding Horror: http://www.codinghorror.com/blog/2008/04/setting-up-subversion-on-windows.html I went to the downloads and am confused. I would have just downloaded the first entry but I am afraid it would break my server or something if I don't have apache. We use IIS only and I wouldn't want to break it somehow. I don't even need a web or webdav front end. Which one should I install on this page, please: http://subversion.tigris.org/servlets/ProjectDocumentList?folderID=91 thank you for any help. edit: thanks for information, but I am hoping to stay free with the "regular" subversion. I plan on using TortoiseSVN for the client.

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• java cannot reserver heap size error on windows server

  - by Prad

  HI, I have the following configuration: Server : windows 2003 server (32 bit) java version: 1.5_0_22 I get the following error when executing from command line ( my code is based off eclipse wihch gives the same error) java -XX:MaxPermSize=256m -Xmx512m Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. The server has over 20GB physical memory with over 19 GB free right now. It does not give an error upto -Xmx486m I have read other articles about contiguous memory space. There is hardly anything running on this server. Can I validae this in any way? Thanks

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• Why can't I do this from ASP.NET?

  - by Nissan Fan

  The code below spawns the process and sits forever, never finishing. It doesn't matter what process I run. Also, if I use Shell with Wait it does the same thing. If I set wait to false in either approach it works just fine. It's ASP.NET 2.0 VB.NET DotNetNuke 4.0 on Windows Server 2003. I can't even phathom why this would hang up. From: http://www.freevbcode.com/ShowCode.asp?ID=5879 Public Sub ShellandWait(ByVal ProcessPath As String) Dim objProcess As System.Diagnostics.Process objProcess = New System.Diagnostics.Process() objProcess.StartInfo.FileName = ProcessPath objProcess.StartInfo.WindowStyle = ProcessWindowStyle.Normal objProcess.Start() 'Wait until the process passes back an exit code objProcess.WaitForExit() 'Free resources associated with this process objProcess.Close() End Sub

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• How the websocket bi-directional concept work?

  - by GMsoF

  I think the main difference between websocket and http streaming (I am not refering to polling and long polling) is websocket allows bi-directional communication which is similar to usual raw socket programming. (above is my understanding, could be wrong, feel free to correct me.) My question is how the web client (browser) continue to send another request in the already-opened websocket? Usual http request will treat another request as new socket connection, but websocket does not, that is why I am confused, how it achieve that? It should be handled in Server side or Client (browser) side?

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• Where's the definitive resource online about how to carry out Agile development?

  - by jdk

  I want to start Agile practices in a team. I'm assuming the information is available for free online about how to specifically carry it out. Online I can locate the manifesto, the alliances and corporations involved but where is the actual central guide or root instruction set about how to do it? (Maybe the practices themselves are more ethereal or subjective than I expect and it's found in multiple places?) Edit to summarize solutions: Agile is a concept so that's what's to be found online about it. However specific processes or methods of Agile development have been created like Scrum and Extreme programming to provide concrete solutions to teams who want to adopt Agile and reap its proposed benefits. Find the shoe (or method) that fits best. Maybe create it. If looking for solutions online to implement Agile development in your organization or for your project, seek out the specific methods too and decide among them.

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• problem with .htaccess and mod_rewrite

  - by ian

  My below .htaccess file should send everything to my index.php page where my framework [Fat Free Frameowkr] handles it. However if I go to http://www.site.com/ it works. If I go to http://www.site.com/about I get a 404 error. Any ideas? # Enable rewrite engine and route requests to framework RewriteEngine On RewriteBase / RewriteCond %{REQUEST_FILENAME} !-l RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule .* index.php [L,QSA] # Disable ETags Header Unset ETag FileETag none # Default expires header if none specified (stay in browser cache for 7 days) <IfModule mod_expires.c> ExpiresActive On ExpiresDefault A604800 </IfModule>

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• Freeing memory with Pointer Arithmetic

  - by Breedly

  C++ newb here. I'm trying to write my own implementation of an array using only pointers, and I've hit a wall I don't know how to get over. My constructor throws this error array.cpp:40:35: error: invalid conversion from ‘int*’ to ‘int’ [-fpermissive] When my array initializes I want it to free up all the spaces in the array for ints. Array::Array(int theSize){ size = theSize; int *arrayPointer = new int; int index = 0; while(theSize > index){ *(arrayPointer + index) = new int; //This is the trouble line. ++index; } } What am I doing wrong stackoverflow?

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