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  • Assembly Programming and Interrupt Handling

    - by nmr
    I'm writing a program in assembly using MIPS architecture for a class, and I'm having trouble figuring out how to grab an input character by a user and store it in a register to process. The program would open a console, output a message, the user can then input a character and then this determines what is supposed to happen next in the program. Like I said, I'm having trouble figuring out how to grab the character so that I can act upon it in the program. thanks

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  • PHP utf encoding problem

    - by shyam
    How can I encode strings on UTF-16BE format in PHP? For "Demo Message!!!" the encoded string should be '00440065006D006F0020004D00650073007300610067006'. Also, I need to encode Arabic characters to this format.

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  • gae error : Error: Server Error, how to debug it .

    - by zjm1126
    when i upload my project to google-app-engine , it show this : Error: Server Error The server encountered an error and could not complete your request. If the problem persists, please report your problem and mention this error message and the query that caused it. why ? how can i debug this error ? thanks

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  • vi script problem on autocmd

    - by schemacs
    I want to create a template for all my python scripts using this autocmd bufnewfile *.py so ~/.vim/templates/python_skeleton.txt the content of python_sekleton.txt is as simple as this: #!/usr/bin/python # -*- coding: utf-8 -*- print 'Hello World' but vi give error message when i start to edit a new python script: line 2: E488: Trailing characters: # -*- coding: utf-8 -*- line 4: E488: Trailing characters: print 'Hello World' it seems '#' is not escaped,and anyone can work it out?thanks i advance

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  • on facebook, how do i authenticate an application, using JavaScript?

    - by GilShalit
    I can only find samples using php or curl. I want to do something like https://graph.facebook.com/<app_id>/accounts/test-users? installed=true&permissions=read_stream and the response is: { "error": { "type": "OAuthException", "message": "An access token is required to request this resource." } } as well is should... so how do i get the access token in JavaScript (using the JavaScript SDK obviously). thanks!

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  • jQuery: columnizer plugin: is that slow ?

    - by Patrick
    hi, I'm using columnizer plugin (http://welcome.totheinter.net/columnizer-jquery-plugin/) to update my pages and display elements in vertical columns. It usually takes 2 seconds to update the view. Is that normal ? It seems to be quite slow. I sometimes receive Firefox message (Unresponsive javascript) thanks

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  • php/ldap - bind fails but errorno doesn't execute

    - by user240907
    I am trying to connect to ldap with a php web application. If the username/password is correct everything works fine however if the username/password is incorrect I get the following error: PHP Warning: ldap_bind() [function.ldap-bind]: Unable to bind to server: Invalid credentials for some reason I am not able to look at the errorno or the state of the bind variable afterwards to print the appopriate user friendly error message. any ideas?

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  • What is Erlang's concurrency model actually ?

    - by arun_suresh
    I was reading a paper recently Why Events are Bad. The paper is a comparative study of Event based and thread based highly concurrent servers and finally concludes stating that Threads are better than events in that scenario. I find that I am not able to classify what sort of concurrency model erlang exposes. Erlang provides Light Weight Processes, but those processes are suspended most of the time until it has received some event/message of some sort. /Arun

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  • Eclipse (Blackberry JDE 4.6.1) fails deploying the application on the simulator

    - by elos
    Hi, this is the message I receive when I try to build my applicaion. ..\HBB\HBB.rapc -sourceroot=C:\ws\HBB\src @HBB_build.files I/O Error: C:\ws\HBB\HBB.cod (The system cannot find the file specified) rapc executed for the project HBB the project is currently set as "Active for Blackberry" and all the other option are set as defined here here why the .cod file is not created? thanks for you help

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  • Cannot evaluate expression error in ONE project for years

    - by pukipuki
    Just tired to see this error every time for years only in ONE project: "Cannot evaluate expression because a thread is stopped at a point where garbage collection is impossible, possibly because the code is optimized" Almost every property or field displays this message. From vs2005+.net2.0 to vs2008+.net3.5 now. Does anybody know how to fix it?

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  • iphone: unrecognized selector sent to instance

    - by eshalev
    I am new to objective C, So maybe there is some basic thing that I am missing about selectors. I would like to understand the basic concept behind this error as I have not found an general error reference. I am getting this error when using: [CloseButton addTarget:PageContents action:@selector(CloseButtonPressed) forControlEvents:UIControlEventTouchUpInside]; and then later: - (void)CloseButtonPressed:(id)sender{ UIAlertView *someError = [[UIAlertView alloc] initWithTitle: @"Comment" message: @"hello" delegate: self cancelButtonTitle: @"Ok" otherButtonTitles: nil]; [someError show]; [someError release]; }

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  • Mouse left button up event and openfiledialog

    - by phm
    I have few images in a grid, then when i click a button, a "open file dialog" comes up.(of course, over the images) Microsoft.Win32.OpenFileDialog dlgOpenFiles = new Microsoft.Win32.OpenFileDialog(); dlgOpenFile.DoModal(); The images have a LeftButtonUp event attached. The problem is that if i select a file by double clicking it, the open file dialog closes(which is good), but besides that, the image behind the clicked file is receiving a LeftButtonUp message which is not good at all. I am using wpf/c#/vs2010

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  • Two Phase Commit with MongoDB

    - by mattcodes
    Heres what Im thinking. Do you see any issues with this workaround to emulate 2 phase commit when using something like MongoDB where each operation is atomic and there is no support for transactions outside of that? transaction_scope: read message from servicebus - UpdateCustomerAddress get customer aggregate from docdb, replay events where commited =1 call customer.updateAddress validates creates customer address updated event apply event event store as uncommitted events do optimistic concurrency update against docdb pushing uncommitted events (single op to ensure consistency) publish event to service bus update docdb set events just published to commited = 1 (again one 1 op - at least in mongodb) transaction_complete

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  • Email from an app, but not use a a pop up controller, just text inside a text box.

    - by Sam Jarman
    Hey is there any way to send whats in a text view (im trying to make a suggestion box) to my email address? example user types in the box " I think you should add twitter support" then that is sent in the background to my email address [email protected] then a message is popped up on the screen saying "suggestion sent" just an example of what i mean Any ideas, tutorial links would be greatly appreciated guys Thanks

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  • Mimic Windows' 'Run' window in .NET

    - by chaiguy
    I would like to mimic the Run command in Windows in my program. In other words, I would like to give the user the ability to "run" an arbitrary piece of text exactly as would happen if they typed it into the run box. While System.Diagnostics.Process.Start() gets me close, I can't seem to get certain things like environment variables such as %AppData% working. I just keep getting the message "Windows cannot find '%AppData%'..."

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  • Formatting with echo command

    - by johannix
    The actual situation is a bit complicated, but the issue I'm running into is that I have an echo command within an eval command. Like so: $ eval echo 'keep my spacing' keep my spacing $ echo 'keep my spacing' keep my spacing I was wondering how I could keep eval from stripping my spacing so that the first command prints out the same message as the second...

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  • How to fix this python program?

    - by Phenom
    import math def p(n): return 393000*((288200/393000)^n * math.exp(-(288200/393000)))/math.factorial(n) print p(3) When I run it, I get the following error message: Traceback (most recent call last): File "poisson.py", line 6, in <module> print p(3) File "poisson.py", line 4, in p return 393000*((288200/393000)^n * math.exp(-(288200/393000)))/math.factoria l(n) TypeError: unsupported operand type(s) for ^: 'int' and 'float'

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  • Jython saying "No visible constructors for class"

    - by clutch
    I have a jython servlet as part of a large application running in tomcat5. I tested a few Spring Framework classes and create the objects in the Jython servlet. When I try to create objects of classes in the application I catch an Exception message "No visible constructors for class". These java classes do have a public constructor class, such as: public SchoolImpl() { } I create the object in python: from com.dc.sports.entity import SchoolImpl ... school = SchoolImpl() What am I doing wrong?

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  • What is the most elegant way to implement a business rule relating to a child collection in LINQ?

    - by AaronSieb
    I have two tables in my database: Wiki WikiId ... WikiUser WikiUserId (PK) WikiId UserId IsOwner ... These tables have a one (Wiki) to Many (WikiUser) relationship. How would I implement the following business rule in my LINQ entity classes: "A Wiki must have exactly one owner?" I've tried updating the tables as follows: Wiki WikiId (PK) OwnerId (FK to WikiUser) ... WikiUser WikiUserId (PK) WikiId UserId ... This enforces the constraint, but if I remove the owner's WikiUser record from the Wiki's WikiUser collection, I recieve an ugly SqlException. This seems like it would be difficult to catch and handle in the UI. Is there a way to perform this check before the SqlException is generated? A better way to structure my database? A way to catch and translate the SqlException to something more useful? Edit: I would prefer to keep the validation rules within the LINQ entity classes if possible. Edit 2: Some more details about my specific situation. In my application, the user should be able to remove users from the Wiki. They should be able to remove any user, except the user who is currently flagged as the "owner" of the Wiki (a Wiki must have exactly one owner at all times). In my control logic, I'd like to use something like this: wiki.WikiUsers.Remove(wikiUser); mRepository.Save(); And have any broken rules transferred to the UI layer. What I DON'T want to have to do is this: if(wikiUser.WikiUserId != wiki.OwnerId) { wiki.WikiUsers.Remove(wikiUser); mRepository.Save(); } else { //Handle errors. } I also don't particularly want to move the code to my repository (because there is nothing to indicate not to use the native Remove functions), so I also DON'T want code like this: mRepository.RemoveWikiUser(wiki, wikiUser) mRepository.Save(); This WOULD be acceptable: try { wiki.WikiUsers.Remove(wikiUser); mRepository.Save(); } catch(ValidationException ve) { //Display ve.Message } But this catches too many errors: try { wiki.WikiUsers.Remove(wikiUser); mRepository.Save(); } catch(SqlException se) { //Display se.Message } I would also PREFER NOT to explicitly call a business rule check (although it may become necessary): wiki.WIkiUsers.Remove(wikiUser); if(wiki.CheckRules()) { mRepository.Save(); } else { //Display broken rules }

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  • Curl CONNECTION OPTIONS

    - by cinek1lol
    HI I'd like to know how to check out the speed of a file being uploaded in real time using the curl library in c++. This is what I have written: curl_easy_getinfo(curl,CURLINFO_SPEED_UPLOAD,&c); But the manual says that it shows average speed, but even this doesn't seem to work with me, because I can only see a 0. There is one more thing: How to set an upload limit that works, because if I write this: curl_easy_setopt(curl, CURLOPT_MAX_SEND_SPEED_LARGE, 100); I get an error 502 message plis help

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