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• Create Static Library iOS Error

  - by bit-whacker

  This is FIrst time i try to create Cocoa Touch Static Library and follow these steps. Create New Project with Cocoa Touch Static Library named it By default i got single class with Demo.h and Demo.m. 2.Create a public function in .h and implement it in .m. 3.Select iOS Device and press cmd + B. 4.Copy Demo.a from products and the .h file drop it in my iOS App where i want to use it. 5.Then Import Demo.h and try to call the function that i wrote. Issue When try to Run the project showing this error. ld: warning: ignoring file /Users/Zenga/Documents/iOS/Static Library/myAppwithLib/Demo.a, file was built for archive which is not the architecture being linked (i386): /Users/Zenga/Documents/iOS/Static Library/myAppwithLib/Demo.a Undefined symbols for architecture i386: "_OBJC_CLASS_$_Demo", referenced from: objc-class-ref in ViewController.o ld: symbol(s) not found for architecture i386 clang: error: linker command failed with exit code 1 (use -v to see invocation) Please help if anyone have any idea about it.

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• 2D Game: Fast(est) way to find x closest entities for another entity - huge amount of entities, high

  - by Pygmy

  I'm working on a 2D game that has a huge amount of dynamic entities. For fun's sake, let's call them soldiers, and let's say there are 50000 of them (which I just randomly thought up, it might be much more or much less :)). All these soldiers are moving every frame according to rules - think boids / flocking / steering behaviour. For each soldier, to update it's movement I need the X soldiers that are closest to the one I'm processing. What would be the best spatial hierarchy to store them to facilitate calculations like this without too much overhead ? (All entities are updated/moved every frame, so it has to handle dynamic entities very well)

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• Can I switch the Visual C++ runtime to another heap?

  - by sharptooth

  My program uses a third party dynamic link library that has huge memory leaks inside. Both my program and the library are Visual C++ native code. Both link to the Visual C++ runtime dynamically. I'd like to force the library into another heap so that all allocations that are done through the Visual C++ runtime while the library code is running are done on that heap. I can call HeapCreate() and later HeapDestroy(). If I somehow ensure that all allocations are done in the new heap I don't care of the leaks anymore - they all go when I destroy the second heap. Is it possible to force the Visual C++ runtime to make all allocations on a specified heap?

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• SQL question - Cursor or not?

  - by grady

  Hi, I have a query which returns 2+ rows. In those results is a column which we can call columnX for now. Lets look at those example results: columnX 100 86 85 70 null null I get 6 rows for example, some of them are null, some of them are not null. Now I want to go through those results and stop as soon as I find a row which is < null. How can I do that? Thanks in advance :-)

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• Is JSONRequest a global Javascript object ?

  - by Anth0

  My goal is to asynchronously call a URL via POST request (REST Webservice) to increment a statistic on one of my object. I am a newby web developper and I discovered JSON yesterday. Since JSON seems a lot popular and handy I went to www.json.org and discovered a JSONRequest object which seems to able one to send POST/GET request asynchronously but I can't get it work. Is it a global Javascript object or do I need to add some files ? I am a little bit confused since I've found a Firefox plugin extension for JSONRequest but I don't understand its purpose.

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• Select n+1 problem

  - by Arnis L.

  Foo has Title. Bar references Foo. I have a collection with Bars. I need a collection with Foo.Title. If i have 10 bars in collection, i'll call db 10 times. bars.Select(x=x.Foo.Title) At the moment this (using NHibernate Linq and i don't want to drop it) retrieves Bar collection. var q = from b in Session.Linq<Bar>() where ... select b; I read what Ayende says about this. Another related question. A bit of documentation. And another related blog post. Maybe this can help? What about this? Maybe MultiQuery is what i need? :/ But i still can't 'compile' this in proper solution. How to avoid select n+1?

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• Setting Frame.Content doesn't always work

  - by dan gibson

  I have a Frame control and I'm setting the Content property. If I set it twice, first to one control then to another, it shows the first control instead of the second. If I display a message box after setting it the first time then it works fine (ie it displays the second control). It's like I can only set Content once until the screen has been repainted. Calling Frame.UpdateLayout also doesn't help. What should I call after setting Content so that I can be sure that Content is actually set to what I specify?

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• GWT Editor: How to set last modified time on the entity when saved?

  - by Mike

  Suppose at client side i have an Entity proxy to edit by the UI and when i click save button, the last modified time is save in the entity as a field. //start MyEntityProxy proxy = getProxy();//fetched from server Request<Void> saveRequest = requestFact.myEntityProxyRequest().save(proxy); editorDriver.edit(proxy, saveRequest.getRequestContext()); editorDriver.flush(); //user modifies UI .... //save editorDriver.flush(); saveRequest.fire(); The problem is, where to insert the proxy.setLastModifiedTime(data) call? I always got java.lang.IllegalStateException: The AutoBean has been frozen. Thanks.

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• AJAX in ASP.NET - How do I check a checkbox and have the action reflected in the database?

  - by hamlin11

  This is about as beginner as it gets regarding AJAX, but here it goes. I want to have one checkbox somewhere on an ASP.NET web form (ASPX). When the user clicks the checkbox, I want one of those spinning indicators to show. While that spinning indicator is showing, I want an update operation to occur in the database to reflect that the user has intended for that checkbox to be checked. update MyTable set CheckboxChecked = 1 Then, as soon as the update operation has occurred, I want that to be reflected in the checkbox by removing the spinning indicator and replacing it with the standard checked checkbox. I'm guessing this is done with an UpdatePanel and possibly an update statement followed by a looped call to a select statement... but I have never used AJAX before and have no idea how to go about it. Thanks!

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• JSONP parsing error from WCF

  - by user1754730

  Answered my own question I had a problem with a jquery (jsonp) call to a WCF service that was throwing a json parsing error. Using ASP.NET 4.0 on the WCF side and jquery 1.7 on the client side. Turned out there was an old set of script tags on the page using language = VBSCRIPT. The browser was interpreting the returned json packet of script as "VBscript" instead of javascript. I placed a set of empty javascript tags at the top of the page and the browser is now interpreting the json as the proper javascript function. Hope this helps someone else. Tom

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• Create "INSERT" statements from mySQL database in Java

  - by girdus

  Does anyone know of any good libraries or scripts out there which will allow me to point to any mySQL table and automatically get a list of all the INSERT statements for the data in the table? DdlUtils allows me to create an XML file from a database model but I would like to have it in INSERT statements format and preferably the ability to choose a couple of tables instead of dumping the entire database. Thanks. EDIT: I need it to be a Java API because I want to programatically call it from my Java method.

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• C++: use array of strings wrapped in namespace?

  - by John D.

  I got the following code, wishing to wrap a group of strings nicely in a namespace: namespace msgs { const int arr_sz = 3; const char *msg[arr_sz] = {"blank", "blank", "blank" }; msg[0] = "Welcome, lets start by getting a little info from you!\n"; msg[1] = "Alright, bla bla bla.."; msg[2] = "etc."; } The code inside works nicely inside a function, but I don't know how to return an array from it. The namespace idea LOOKS fine, but it returns on the last three lines: error: expected constructor, destructor, or type conversion before ‘=’ token Why can't I define the array inside a namespace, do I need to do something first? It's nice because I can call it like printf(msgs::msg[1]) etc. I want to do this I just can't wrap my head around what's wrong :(

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• Reading programming tutorials while at work

  - by Teifion

  I work in a call centre and have been told by my manager that when there are no calls coming through they're happy for me to read stuff on the internet. There is a net filter in place but I can access SO from work which is always handy. I'm searching for articles that will make me a generally better programmer. I code in Python but combine it with Postgres and JS quite a lot if that helps. I'm currently reading Dive into python3 but I fear it won't last me much longer and would really like to expand my programming ability.

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• How to find dynamically loaded modules (the static ones) programatically in windows

  - by Ryan Rohrer

  I'm trying to port the unix utility ldd to windows, because dependency walker and cygcheck don't quite give me the usage I'm looking for. (also for the learning experience) Ive been looking all over MSDN, for a windows API that lists dll dependencies of an executable, or even the storage format in the complied exe (just to filter it out), but I've been unable to find anything. If anyone knows what API call windows uses for listing modules to load, or what patterns I can search for in an executable to find modules to load, please help me out :) thanks! -note: I'm not looking to profile for dynamic modules, just list the ones that are required at runtime

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• Use parameters with CTL

  - by Hal

  Hi. I am using a CTL file to load data stored in a file to a specific table in my Oracle database. Currently, I launch the loader file using the following command line: sqlldr user/pwd@db data=my_data_file control=my_loader.ctl I would like to know if it is possible to use specify parameters to be retrieved in the CTL file. Also, is it possible to retrieve the name of the data file used by the CTL to fill the table ?I also would like to insert it for each row. I currently have to call a procedure to update previously inserted records. Any help would be appreciated !

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• C - memset segfault for statically allocated char array

  - by user1327031

  I get a segfault when trying to memset an array of chars that was allocated statically, but not for an array of the same length that was allocated using malloc. variable definitions: //static char inBuff[IN_BUFF_LEN]; //dynamic char * inBuffD; function call: //static, cast used because char** != char (*) [n] serverInit(portNum, (char**) &inBuff, &serv_addr, &sockfd) //dynamic serverInit(portNum, &inBuffD, &serv_addr, &sockfd) use within the function: memset(*inBuffAdr, 0, IN_BUFF_LEN); I suspect that my problem is in the difference of the function calls, or to be more precise, my incomplete understanding of the "char** != char (*) [n]" situation. But I have been banging at this for too long and can't see the forest from the trees so any hints and advice would be very appreciated.

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• BroadCast Receiver calling intent after some time android

  - by khushi

  public class myReceiver extends BroadcastReceiver { public static boolean wasScreenOn = true; @Override public void onReceive(final Context context, Intent recievedIntent) { if (recievedIntent.getAction().equals(Intent.ACTION_SCREEN_OFF)) { wasScreenOn = false; Intent intent = new Intent(context, myActivity.class); intent.setAction(Intent.ACTION_MAIN); intent.setFlags(Intent.FLAG_ACTIVITY_NO_USER_ACTION); intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY); intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION); intent.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); context.startActivity(intent .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)); } else if (recievedIntent.getAction().equals(Intent.ACTION_SCREEN_ON)) { wasScreenOn = true; } } } The activity display after when action screen on is call.

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• Getting unevaluated tcl arguments

  - by user1327792

  What I want to do is parse an argument to a tcl proc as a string without any evaluation. For example if I had a trivial proc that just prints out it's arguments: proc test { args } { puts "the args are $args" } What I'd like to do is call it with: test [list [expr 1+1] [expr 2+2]] And NOT have tcl evaluate the [list [expr 1+1] [expr 2+2]]. Or even if it evaluated it I'd still like to have the original command line. Thus with the trivial "test" proc above I'd like to be able to return: the args are [list [expr 1+1] [expr 2+2]] Is this possible in tcl 8.4 ? Thank you. -MP

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• Memcached - how to deal with adding/deploying servers

  - by Industrial

  Hi everybody, How do you handle replacing/adding/removing memcached nodes in your production applications? I will have a number of applications that are cloned and customized due to each customers need running on one and same webserver, so i'll guess that there will be a day when some of the nodes will be changed. Here's how memcached is populated by normal: $m = new Memcached(); $servers = array( array('mem1.domain.com', 11211, 33), array('mem2.domain.com', 11211, 67) ); $m->addServers($servers); My initial idea, is to make the $servers array to be populated from the database, also cached, but file-based, done once a day or something, with the option to force an update on next run of the function that holds the $addservers call. However, I am guessing that this might add some additional overhead since disks are quite slow storage... What do you think?

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• StructureMap singleton behavior not working

  - by user137348

  My code is public static class ContainerBootstrapper { public static void BootstrapStructureMap() { ObjectFactory.Initialize(x => x .ForRequestedType<ValueHolder>() .CacheBy(InstanceScope.Singleton) .TheDefaultIsConcreteType<ValueHolder>()); } } Initialization code (its a windows service) static class Program { static void Main() { ServiceBase[] ServicesToRun; ServicesToRun = new ServiceBase[] { new AppServer() }; ServiceBase.Run(ServicesToRun); ContainerBootstrapper.BootstrapStructureMap(); } } And then I call an instance like this: var valueHolder = ObjectFactory.GetInstance<ValueHolder>(); But I get everytime an new instance not the one used before.

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• Radio button how to?

  - by Azzyh

  what i want to do is that when you vote Y or N (two different radio buttons) and then it inserts into the "vote" column(in database) = Y or N(what you pickd), if nothing then echo error. I know how to do this like halfway, i never worked with radiobuttons before so i need you guys. Here's a two radio button right: Yes: <input type="radio" value="Y" id="voteYes" name="vote"></input> <br> No: <input type="radio" value="N" id="voteNo" name="vote"> </input> I gave the value N and Y, not the same ID, but the same name. I think its right, but how should i do with the PHP part of what i want to do? I mean shall i call for "vote"? ($_GET["vote"]) i dont think so.. here's where im stuck

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• what's the best (most effecient) way in asp .net to return a whole page into tabbed content?

  - by ijjo

  what i want to do is every time i click on a tab, the content area is replaced by pretty much a whole new page. i don't want a full page load so i want to do it in ajax, but i'm used to sending back small jason data via page methods. i'm not sure how i would construct a whole new page and return that via ajax and i would like to simply assign the whole content returned to a div and be done with it. what's the best way to do this with the least amount of overhead (i know there are some inefficient ways the scriptmanager does ajax)? or is it better to load the tabbed content in an iframe? fyi i'm already using jquery to call lightweight pagemethods on my asp net page and that works great.

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• Why does setting document.domain require me to set it in all popups and iframes too?

  - by Chris

  I'm using a long-polling iframe solution for a chat script. Unfortunately, this requires me to set document.domain='yourdomain.com' in the iframe and main document, because the iframe is a subdomain call. The huge problem is...now all my other scripts that use popups and iframes are broken. They now require me to put document.domain in them too. It does fix it, but this is not an ideal solution at all. Is there another way around this problem?

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• Conditional PIVOT/transform problem

  - by IanC

  Hi folks I have a table with three columns, which we'll call ID1, ID2, and Value. Sample data: ID ID1 Value 1 1 0 1 2 1 1 3 1 1 3 2 1 4 0 1 4 1 1 5 0 1 5 2 2 1 2 Value is limited to 0, 1, or 2. What I need to do is pivot/transform this data into a column-based count of how many times each possible Value appears, grouped by ID, ID1. The output of the above should be: ID ID1 Val0 Val1 Val2 1 1 1 0 0 1 2 0 2 0 1 3 0 1 1 1 4 1 1 0 1 5 1 0 1 2 1 0 0 1 I'm using SQL Server 2008. How do I do this?

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• Crash when checking BOF property of pessimistic locked ADO recordset

  - by Patrick

  Bit of an odd one for you: I've got two connections to a database, on one I've opened a _RecordsetPtr with a pessimistic lock. I can no longer send an UPDATE command on the other connection. I can send a SELECT command on the second connection and data is returned. If I use a read only lock then there are no problems however when I use a pessimistic lock on the second connection as well I can check the State == adStateOpen but the program hangs when I test the BOF property! If I don't test the BOF property and try to call moveNext on the second connection the software hangs If I do neither of these I am able to access the data via the second connection but trying to access the data from the first connection causes the software to hang. Any one seen anything similar as I'm a bit stuck? EDIT : it wasn't hanging, someone had put a 30 minute timeout on the connection and I wasn't waiting that long while testing...

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