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• For Loops in MIPS assembly

  - by John Moffitt

  I'm having problems getting my processor to simulate correctly and I think I've narrowed it down to the program I'm giving it. 1. li $R1, 0 2. li $R2, 0x100 3. li $R6, 1 4. li $R8, 0 5. li $R9, 20 6. lw $R3, 0($R1) 7. lw $R4, 4($R1) 8. add $R5, $R3, $R4 9. srlv $R5, $R5, $R6 10. sw $R5, 0($R2) 11. addi $R1, $R1, 4 12. addi $R2, $R2, 4 13. addi $R8, $R8, 1 14. slt $R7, $R8, $R9 15. bnq $R7, $zero, -9 It should iterate through the bottom portion 20 times and then exit. I'm particularly unsure about the branch instruction but I can't find anything wrong with it so : /

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• Best way to handle SQL Server fulltext index updates

  - by tlianza

  Hi all, I have a fulltext index which doesn't need to be immediately up-to-date, I'd like to spare myself the I/O (when I do bulk updates, I see a ton of I/O related to the index) and do the index updates during low usage times (nightly, perhaps even weekly). It seems there are two ways to go about this: Turn off change tracking (SET CHANGE_TRACKING OFF) and add a timestamp field to the indexed table, so that you can run alter fulltext index on <table> start INCREMENTAL population, or Enable change tracking, but set it to MANUAL, so that you can run alter fulltext index on <table> start UPDATE population when you need it updated. Is there a preferred method? I couldn't tell from this overview if there was a performance benefit one way or the other. Tom

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• Reused UIWebView showing previous loaded content for a brief second on iPhone

  - by Roi

  In one of my apps I reuse a webview. Each time the user enters a certain view on reload cached data to the webview using the method - (void)loadData:(NSData *)data MIMEType:(NSString *)MIMEType textEncodingName:(NSString *)encodingName baseURL:(NSURL *)baseURL and I wait for the callback call - (void) webViewDidFinishLoad:(UIWebView *)webView. In the mean time I hide the webview and show a 'loading' label. Only when I receive webViewDidFinishLoad do I show the webview. Many times what happens is I see the previous data that was loaded to the webview for a brief second before the new data I loaded kicks in. I already added a delay of 0.2 seconds before showing the webview but it didn't help. Instead of solving this by adding more time to the delay does anyone know how to solve this issue or maybe clear old data from a webview without release and allocating it every time?

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• Modify EXE to stop launching firefox

  - by Random Joe

  I'm using a wireless modem program from my ISP. This program automatically disconnect when it detects the line is idle. It does so in 2-5 minutes of idle time. Whenever I reconnect, It will automatically fire up my default browser to the ISP portal. I DID NOT pay them to shove their web portal in my face 50 times a day. The ISP provides no options for disabling this behavior. Can someone please show me how to hex edit the EXE program to stop it from annoying the hell out of me?

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• remove multiple training slashes mod_rewrite

  - by Boyan

  I know this question was asked a number of times on this site alone, but browsing through the relevant posts I couldn't find a solution. Trying to remove multiple trailing slashes after domain. The following mod_rewrite expressions seem to work for URLs such as http://www.domain.com//path1///path2////, but do not work for domain// DirectorySlash Off RewriteEngine on # Canonical fix RewriteCond %{HTTP_HOST} !^www.domain.com$ [NC] RewriteRule ^(.*)$ http://www.domain.com/$1 [R=301] RewriteRule ^/main.do http://www.domain.com/ [R=301,L] RewriteRule ^/index.jsp http://www.domain.com/ [R=301,L] # Remove bogus query strings RewriteCond %{query_string} q= [NC] RewriteRule (.*) http://www.domain.com/$1? [R=301,L] # Remove multiple slashes after domain - DOESN'T WORK!!! #RewriteCond %{REQUEST_URI} ^//+(.*)$ [OR] #RewriteCond %{REQUEST_URI} ^(.*/)/+$ #RewriteRule / http://www.domain.com/%1 [R=301,L] # Remove multiple slashes anywhere in URL RewriteCond %{REQUEST_URI} ^(.*)//(.*)$ RewriteRule . %1/%2 [R=301,L] # Externally redirect to get rid of trailing slash except for home page, ads RewriteCond %{REQUEST_URI} !^/ads/ RewriteRule ^(.+)/$ $1 [R=301,L] Your help is appreciated.

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• Have you been in cases where TDD increased development time?

  - by BillyONeal

  Hello everyone :) I was reading http://stackoverflow.com/questions/2512504/tdd-how-to-start-really-thinking-tdd and I noticed many of the answers indicate that tests + application should take less time than just writing the application. In my experience, this is not true. My problem though is that some 90% of the code I write has a TON of operating system calls. The time spent to actually mock these up takes much longer than just writing the code in the first place. Sometimes 4 or 5 times as long to write the test as to write the actual code. I'm curious if there are other developers in this kind of a scenario.

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• XSLT: Is there a way to "inherit" canned functionality?

  - by Ian Boyd

  i am once again having to cobble together a bit of XSLT into order to turn generated XML into (rather than simply generating HTML). i'm having huge deja-vu this time again. i'm once again having to solve again basic problems, e.g.: how to convert characters into valid html entity references how to preserve whitespace/carriage returns when converting to html how to convert to HTML as opposed to xhtml how to convert dates from xml format into presentable format how to tear apart strings with substring This is all stuff that i've solved many times before. But every time i come back to XSLT i have to start from scratch, re-inventing the wheel every time. If it were a programming language i would have a library of canned functions and procedures i can call. i would have subroutines to perform the commonly repeated tasks. i would inherit from a base class that already implements the ugly boilerplate stuff. Is there any way in XSLT to grow, expand and improve the ecosystem with canned code?

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• Mysql JOIN problem

  - by FinalDestiny

  I have 2 mysql tables : Question with the following columns : id, question, nranswers Nranswers must be a number from 1 to 5 And the other table is Answers with the following columns: userid, answer . Now the problem is that I want to get the replies for each answer for one question(id 22 let's say) . P.S. If the nranswers is 3, the result should look like this: (the right number means how many times the reply number was chosen) 1 - 2 2 - 8 3 - 7 If the nranswers is 5, the result should look like this: 1 - 3 2 - 8 3 - 14 4 - 19 5 - 8 Please help me out with the query, atm he's not counting the answers that weren't chosen, only the ones that were chosen at least one time.

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• Service Call very slow if going through HttpHandler

  - by JohnIdol

  I have a WCF client pointing to a WebSphere service. All is good in normal situation except when my calls to the service originate from an HttpHandler - in this case the calls are extremely slow (it takes up to 10 times longer). If I send the exact same envelopes through Soap-UI or without an HttpHandler it's all good. If the envelope is the same the only thing left is the HttpHeader. Would the fact that I am going through an HttpHandler cause changes HttpHeaders compared to normal scenarios? What should I be looking for and is there some config setting that might do the trick? Any help appreciated!

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• Ruby: How to loop through an object that may or may not be an array?

  - by Shpigford

  I have an each method that is run on some user-submitted data. Sometimes it will be an array, other times it won't be. Example submission: <numbers> <number>12345</number> </numbers> Another example: <numbers> <number>12345</number> <number>09876</number> </numbers> I have been trying to do an each do on that, but when there is only one number I get a TypeError (Symbol as array index) error.

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• Representing a schedule in a database

  - by David Pfeffer

  I have the interesting problem of representing complex schedule data in a database. I need to be able to represent the entirety of what the iCalendar (ics) format can represent, but in my database. I don't care about insertion efficiency but query efficiency is critical. The operation I will be doing most often is providing either a single date/time or a date/time range, and trying to determine if the defined schedule matches any part of the date/time range. Other operations can be slower. For those unfamiliar, ics allows representation of a single event or a reoccuring event based on multiple times per day, days of the week, week of a month, month, year, or some combination of those. For example, the third Thursday in November, or the 25th of December, or every two weeks starting November 2nd and continuing until September the following year. Any suggestions?

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• Javascript performance issue

  - by Daniel

  Hello, I've built a top menu based on superfish, but the amount of displayed items in the menu is huge. And there is also alot of jquery on the top menu. Now to the problem, everytime I load any page that has the menu, the browser(ie7) feels like it looks it locks it self for about 1-2 seconds while the page is being loaded. I'm sure that the top menu is the issue, and I would like to improve the performance of the page.(besides removing the menu and removing the menu items) I've used firebug to see which calls take most of the times, and I the calls are standard jquery or superfish. The top menu is a ascx control. Are they any good ways to let the page load first and the menu later or any other goods ideas to improve the performance?

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• How to stop endless EJB 3 timer ?

  - by worldpython

  Hi, I am new to EJB 3 . I use the following code to start endless EJB 3 timer then deploying it on JBOSS 4.2.3 @Stateless public class SimpleBean implements SimpleBeanRemote,TimerService { @Resource TimerService timerService; private Timer timer ; @Timeout public void timeout(Timer timer) { System.out.println("Hello EJB"); } } then calling it timer = timerService.createTimer(10, 5000, null); It works well. I created a client class that calls a method that creates the timer and a method that is called when the timer times out. I forget to call cancel then it does not stop .redeploy with cancel call never stop it. restart Jboss 4.2.3 never stop it. How I can stop EJB timer ? Thanks for helping.

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• Why does my Windows Form app timeout when repeatedly hitting IIS 7 externally?

  - by andy

  hey guys, I've got a very simple Windows Form app that hits an IIS 7 site about 2000 times in the space of a few seconds (using threads). When I run that app on the server itself, using either localhost or the ip address, everything is totally fine. However, when I run the app on my dev box, using the ip address, I get an error from the "GetResponse" method: The operation has timed out The App can definitely connect to the site, because it consistently either starts throwing the timeout error after 10 or so hits (no more than 11), or it throws the timeout error immediately. What's going on? It's hitting IIS 7 on a Windows Server 2008 VM (external box), Windows Firewall is OFF. My App is running locally on my dev box as the admin. cheers

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• Pushing app to heroku problem

  - by Ryan Max

  Hi, I am trying to push my app to heroku and I get the following message: $ heroku create Creating electric-meadow-15..... done Created http://electric-meadow-15.heroku.com/ | [email protected]:electric-meadow-1 5.git $ git push heroku master ! No such app as fierce-fog-63 fatal: The remote end hung up unexpectedly It's weird that I am getting this now, I have pushed the app to heroku many times without issue. the especially weird thing is, fierce-fog-63 is an old app that I made a deleted a long time ago. Why is it now that heroku is trying to push to this app that doesn't exist anymore, especially when I have created a new one. Any suggestions?

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• Critiquing my first Python script

  - by tipu

  A little bit of background: I'm building an inverted index for a search engine. I was originally using PHP, but because of the amount of times I needed to write to disk, I wanted to make a threaded indexer. There's a problem with that because PHP is not thread safe. I then tried Java, but I ended up with at least 20 try catch blocks because of the JSON data structure I was using and working with files. The code was just too big and ugly. Then I figured I should pick up some Python because it's flexible like PHP but also thread safe. Though I'm open to all criticism, what I'd like to learn is the shortcuts that the Python language/library provides that I skipped over. This is a PHP-afide Python script because all I really did was translate the PHP script line by line to what I thought was it's Python equivalent. Thanks. http://pastebin.com/xrg7rf9w

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• AJAX jQuery click results in function event being fired twice

  - by pmagunia

  I have an AJAX chat room module in Drupal and I am trying to insert BBCode stlye tex tags to the submit box when the user clicks Insert Tex. I managed to get the following code to work the first time but afterwards when I click Insert Tex it inserts the tex tags triple times. $('#edit-chatroom-message-entry-submit').click(function (e) { e.preventDefault(); e.stopPropagation(); if ($('#edit-chatroom-message-entry-box').val()){ Drupal.chatroom.postMessage($('#edit-chatroom-message-entry-box').val()); $('#edit-chatroom-message-entry-box').val('').focus(); } }); $('#edit-chatroom-tex-submit').click(function (e) { e.preventDefault(); e.stopPropagation(); $('#edit-chatroom-message-entry-box').val($('#edit-chatroom-message-entry-box').val() + '[tex][/tex]'); }); I would appreciate it if a suggestion could be make to make the code work properly.

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• Redmine connecting to SVN through SSL

  - by Pekka

  I am having trouble connecting Redmine to a locally hosted subversion repository using SSL. I suspect it's the self-signed certificate that usually triggers a warning in the SVN client and browser. When I try to connect to the local repo through SSL in Redmine, I get a red "Revision not available" error. When I try connecting through svn://, the connection times out, and I have to restart the web server. Connecting without SSL works without problems. It would be nice to run subversion on SSL to make it safely accessible from the outside as well. I could run the repository through plain HTTP but would like SSL for outside communication. As far as I understand, subversion can't be run both ways at the same time. Does anybody know what to do in such a situation? Is there a configuration setting to ignore invalid certificates somewhere?

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• Trying to run psexec to remote to server and recycle app pool

  - by James

  If I run this from my command prompt it works fine. psexec \ServerName cscript.exe iisapp.vbs /a AppName /r I'm trying to do the same thing with C# console app. I'm using the below code but most of the time the application hangs and doesn't complete, and the few times it does it throws an error code. Am I doing this wrong? Anyone know where I can look up the error or error code? static void RecycleAppPool(string sServer) { Console.Clear(); ProcessStartInfo p = new ProcessStartInfo("psexec.exe", "\\\\" + sServer + " cscript.exe iisapp.vbs /a <AppName> /r"); p.RedirectStandardInput = true; p.UseShellExecute = false; Process.Start(p); } When it completes with error, looks like this "cscript.exe exited with error code -2147024664"

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• Using UIImageView for a flipbook anim on iphone

  - by Joey

  I'm using UIImageView to run a flipbook anim like this: mIntroAnimFrame = [[UIImageView alloc] initWithFrame:CGRectMake( 0, 0, 480, 320); mIntroAnimFrame.image = [UIImage imageNamed:@"frame0000.tif"]; Basically, when determine it is time, I flip the image by just calling: mIntroAnimFrame.image = [UIImage imageNamed:@"frame0000.tif"]; again with the right frame. Should I be doing this differently? Are repeated calls to set the image this way possibly bogging down main memory, or does each call essentially free the previous UIImage because nothing else references it? I suspect the latter is true. Also, is there an easy way to preload the images? The anim seems to slow down at times. Should I simply load all the images into a dummy UIImage array so they are preloaded, then refer to it when I want to show it with mIntroAnimFrame.image = mPreloadedArray[i]; ?

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• how to make a NEWS -Reader app

  - by exiang

  hey, I'm a beginner and I'm trying to make a NEWS reader app. My idea is to make an app just like N.Y Times. The question is : how do I access the news database and display on my native app ? If I make an RSS reader kinda thing, will I be able to display the contents of the news feed on my native app itself ? Please, I'v been reading and trying different tactics but not really getting anywhere close to what I want. A simple tip from you guys could really help me. thx

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• Any ideas on how to implement a 'touchMoveOver' event in Javascript?

  - by gargantaun

  I'm faffing around with SVG, specifically for web content aimed at iPad users. I've created a little dial type thingy that I'm calling a "cheese board" that I'd like to use as an interface element. http://appliedworks.co.uk/files/times/SVGTests/raphael.html Clicking on a piece of cheese (to keep the analogy going) will do "something". That bit's easy. However, I'd like the user to be able to drag their finger around the 'cheese board', firing a new event (touchesMovedOver?) every time they their finger moves over a new piece of cheese. But I can't figure out how to do it since there's no 'mouseOver' equivalent for touch interfaces. If the whole thing was made of squares, I could have created some sort of 'rectContainsPoint' method to be called for every 'touchesMoved', but that approach wouldn't work here. If anyone has any idea about how something like this could be achieved, I'd love to hear it.

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• Are we in a functional programming fad?

  - by TraumaPony

  I use both functional and imperative languages daily, and it's rather amusing to see the surge of adoption of functional languages from both sides of the fence. It strikes me, however, that it looks rather like a fad. Do you think that it's a fad? I know the reasons for using functional languages at times and imperative languages in others, but do you really think that this trend will continue due to the cliched "many-core" revolution that has been only "18 months from now" since 2004 (sort of like communism's Radiant Future), or do you think that it's only temporary; a fascination of the mainstream developer that will be quickly replaced by the next shiny idea, like Web 3.0 or GPGPU? Note, that I'm not trying to start a flamewar or anything (sorry if it sounds bitter), I'm just curious as to whether people will think functional or functional/imperative languages will become mainstream. Edit: By mainstream, I mean, equal number of programmers to say, Python, Java, C#, etc

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• Java webapp: where/how to automatically set each picture's width/height

  - by NoozNooz42

  For several reasons, a lot of "webmaster guides" (like Google and Yahoo!'s webmaster guides/guidelines) repeats several times that it is better to always put the width and height attribute of the img tag. One of the most obvious reason is that the elements in the page won't seem to be "jumping around" to a new location after every picture is loaded (always setting the correct width/height sure gets rid of this behavior). And there are other reasons to follow these guidelines / best practices. So: if we consider that these are indeed good practices if there are a lot of pictures and they are changing often if pictures aren't changing between two .war re-deploy (that is: there's no user-contributed picture) if we don't want to manually edit all these width/height attributes How do we automatically/programmatically serve HTML pages where every img tag have their width/height attribute correctly set as the best practice recommend?

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• How to handle request-wise DB transactions in ASP.NET MVC?

  - by Dario Solera

  I'm using SubSonic 3.0 (SimpleRepository) to handle database access in my ASP.NET MVC 1.0 application. It would be nice to handle a transaction for every web request, committing if everything went smooth and rolling back in case of exception. Is this possible? If so, how? I know this topic has been discussed many times, but I just couldn't find a satisfactory answer. I have built my own solution (create a TransactionScope in the controller, then commit/rollback in OnActionExecuted), but it turns out to be very unreliable.

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