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  • Can any language potentially be used to create any program?

    - by Matt
    I've heard that given a programmer with enough time and skill in any particular language and enough lines of code, then any program could be created with any given language. I know its certainly not going to be cost-efficient, for instance, to rewrite Adobe Photoshop in BASIC, but could a good enough and patient enough programmer potentially create any program in any language?

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  • Floating point numbers in XML

    - by Jamie
    what is the best way to handle floating point numbers in XML? If I have, for instance: double a = 123.456; and I would like to keep it as <A> 123.456 </A> simply using ... myDoc.createTextNode(a.ToString()); is fine? Or should it be done with some Globalization stuff to make it region-independent?

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  • Python: saving and loading a class definition

    - by Peterstone
    Hi! I am interested in saving and load objects using the pickle module as you can read in a question I asked before: Python: Errors saving and loading objects with pickle module Someone commment: 1, In an other way: the error is raise because pickle wanted to load an instance of the class Fruits and search for the class definition where it was defined, but it didn't find it so it raise the error Now I want to save and load a class definition in order to solve the problem I describe in the question mentioned before. Thank you so much!

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  • Error when deploying app to the device in iphone

    - by Rafael
    Hi, I'm developing an app with SDK 3.1.2 and it runs in the simulator, but when I try to deploy it in the device it arise de following error: 2010-06-17 17:40:39.592 MyApp[2143:207] *** -[__NSCFDate dateInformation]: unrecognized selector sent to instance 0x21e6a0 2010-06-17 17:40:39.608 MyApp[2143:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSCFDate dateInformation]: Why this doesn't happen for the simulator? Thanks in advanced for your help.

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  • How to subtract dates in YYYYMMDD format?

    - by NinjaBomb
    I have 2 integer fields that represent dates in the YYYYMMDD format. What is the best way to subtract 2 of these fields to get the correct # of days between them? For instance, if I take the difference between 20100511 and 20100428 I would like the result to be 13 and not 83. I know I need to convert the integer fields into date formats but everything I have tried either throws an exception or doesn't work correctly. What am I missing? Answers in vb.net please

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  • How do I use the additional Silverlight Toolkit controls?

    - by Brett Rigby
    I've got VS2010 installed, I've downloaded the Windows Phone add-in and the Silverlight Toolkit from CodePlex, but I cannot work out for the life of me how to actually use the controls in a Windows Phone 7 application... How do I add the controls into the toolbox, or link them so that the XAML doesn't give me errors all the time? For instance, using the Viewbox - the controls aren't implemented, and the XAML does not compile.

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  • OSX Equivalent of Winsock LSP

    - by Michael
    On Windows, it's possible to program an LSP service on top of Winsock which provides the ability to do a lot of manipulation/etc. with networked applications. For instance, some anti virus applications register an LSP and analyse network traffic that way. Is there a friendly way to accomplish the same sort of thing on OSX?

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  • Accessing SVN repository from CCNet (CruiseControl.net) using an Active Directory user

    - by Tr1stan
    I have CCNet setup to talk to our SVN repository, which has it's ACLs setup using Active Directory groups. This is working fine, except I'm not happy with having the user name and password of the AD user stored in plain text on the CCNet instance. Is there a way to either encrypt the AD username/password, or get the CCNet service (I've tried running the service as the user and removing the the username/password section of the CCNet/SVN config) to use a domain account outside of the standard config?

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  • django forms overwrite data when saved

    - by dana
    If a have a form, with the data from a user, let's say a CV, and i save the data from the form into a database, but i don't want that a CV from the same user to be stored in the database more than once(when edited form instance) I want it to be overwritten every time it is saved by one same user. How can i do it? thanks a lot

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  • Event to listen to attribute changes

    - by Luis
    I dont think this is possible but maybe someone knows a way to achieve this. I want to attach an event to an html element to listen to attribute change. So say for instance that I want something to happen when a visibility of a div changes. The reason is that I have no control over the javascript that is switching the visibility, hence the need for an event. Thanks

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  • Shopping Cart with multiple orders in ASP

    - by Joao Heleno
    I'm building an e-commerce website in ASP.Net/C# and I'm having some difficulties with my shopping cart... I want my costumers to be able to say "I want X boxes, and each box carries Y items". Let's say, for instance, my website sells flowers. A client logs in and then chooses X bouquets and then for each bouquet he adds flowers from the catalog. Can you point me out some links or tips in order to achieve this behaviour? Thanks

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  • c# reflection: How can I invoke a method with an out parameter ?

    - by ldp615
    I want expose WebClient.DownloadDataInternal method like below: [ComVisible(true)] public class MyWebClient : WebClient { private MethodInfo _DownloadDataInternal; public MyWebClient() { _DownloadDataInternal = typeof(WebClient).GetMethod("DownloadDataInternal", BindingFlags.NonPublic | BindingFlags.Instance); } public byte[] DownloadDataInternal(Uri address, out WebRequest request) { _DownloadDataInternal.Invoke(this, new object[] { address, out request }); } } WebClient.DownloadDataInternal has a out parameter, I don't know how to invoke it. Help!

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  • Is it possible to create a DateFormatter which converts a two-digit year into a four-digit year?

    - by DR
    In my Java application I use a DateFormat instance to parse date inputs. DateFormat fmt; fmt = DateFormat.getDateInstance(DateFormat.DEFAULT) // dd.MM.yyyy for de_DE The problem is that the user insists to enter dates in the form 31.12.11. Unfortunately this is parsed to 31.12.11. (0011-12-31 in ISO format) Instead I want the parsed date to become 31.12.2011 (2011-12-31 in ISO format). Can I modify the date format to somehow parse inputs that way?

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  • Is web-browser to Excel interprocess communication possible

    - by Abiel
    Is is possible to write a browser plugin (one that requires the user to install something is OK) that would allow interprocess communication between the browser and a running instance of Excel (on Windows)? For example, suppose I want the user to be able to click something within their browser, and then have a piece of text drop into the selected cell in Excel as a result. This is certainly possible to do with a regular desktop application and Excel, but I'm not sure if it is possible with a browser, for security reasons.

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  • Java library for trees similar to JGraphT for graphs?

    - by lexicore
    I'm a big fan of JGraphT, a Java library for graphs. Could anyone recommend a similar Java library for trees? Preferrably FOSS. What I need is a good API, preferrably typesafe with generics which allows modelling different kinds of trees (with some user data attached to verticies/edges) and run different algorithms and operations on these trees. For instance, traverse or balance. At the moment I'm not interested in visualization of trees.

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  • How to get the time on the point that you click on the clock?

    - by Jeff
    For instance, when you click the clock on the screen, there will pop up a notification/dialog which displays the exact time point. Anyone can tell me how to achieve this function? Thanks in advance! Maybe I should explain the "exact time point" . For example, there is a big analog clock on the screen. When you click around the dial, it will pop up a dialog box to display the exact time.

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  • Are there any tools to speed up Cocoa development?

    - by user262325
    I noticed that there is much repeated work to do when creating Cocoa source code. For example, if I set an instance for an object: NSMutableArray *infoArray; I need add code: @property (retain,nonatomic) NSMutableArray *infoArray; @synthesize infoArray; in - (void)dealloc { I also need add: [infoArray release]; Is there any tool that can automate this, perhaps by automatically paste or copy the source code and add the repeated code at right place?

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  • deep or shallow copying?

    - by Dervin Thunk
    Dear all. I was wondering if there are examples of situations where you would purposefully pass an argument by value (deep copy) in C. For instance, passing a char to a function is usually cheaper in space than passing a char* (if there's no need to share the value), since char is 1 byte and pointers are, well, whatever they are in the architecture (4 in my 32 bit machine). ?(When) do you want to pass (big) deep copies to functions? if so, why?

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  • How do I compare current date with dates stored in MySQL db?

    - by Gabriele
    Hello, I'm coding a uploader that saves into the db the date when a file is uploaded using CURDATE(). I want to compare the current date with the one stored into the db in order to change the color of the icon related to the file depending on how long has this feel been uploaded. For instance, if less than a week, the icon will be green, if more than a week, it will be yellow, if more than two weeks, red. How can I do it? Thanks.

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