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  • Any foundation to administrate an Android open source application?

    - by Nicolas Raoul
    Our open source application is quite popular, and we are many developers. The app uses my Android Market account, and I shared the keys with a developer. But if both of us disappear, the application's Market account will be lost, and all users trapped. Giving the keys to all developers is not a solution either, for security reasons. Is there a foundation (like in Mozilla Foundation or Apache Foundation) that could accept to hold our Android Market account and release new versions in accordance with their own guidelines and our community consensus? There are quite a lot of Open Source foundations, but I could not find any that tackles this particular aspect of Android applications.

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  • How can I implement an interface member in protected ?

    - by Nicolas Dorier
    Hi, I've been quite surprise when I saw the metadata of ReadOnlyObservableCollection in VS 2008... public class ReadOnlyObservableCollection<T> : ReadOnlyCollection<T>, INotifyCollectionChanged, INotifyPropertyChanged { // Summary: // Initializes a new instance of the System.Collections.ObjectModel.ReadOnlyObservableCollection<T> // class that serves as a wrapper for the specified System.Collections.ObjectModel.ObservableCollection<T>. // // Parameters: // list: // The collection to wrap. public ReadOnlyObservableCollection(ObservableCollection<T> list); // Summary: // Occurs when an item is added or removed. protected virtual event NotifyCollectionChangedEventHandler CollectionChanged; // // Summary: // Occurs when a property value changes. protected virtual event PropertyChangedEventHandler PropertyChanged; // Summary: // Raises the System.Collections.ObjectModel.ReadOnlyObservableCollection<T>.CollectionChanged // event. // // Parameters: // args: // The event data. protected virtual void OnCollectionChanged(NotifyCollectionChangedEventArgs args); // // Summary: // Raises the System.Collections.ObjectModel.ReadOnlyObservableCollection<T>.PropertyChanged // event. // // Parameters: // args: // The event data. protected virtual void OnPropertyChanged(PropertyChangedEventArgs args); } As you can see, CollectionChanged, a member of INotifyCollectionChanged is implemented in protected... and I can't do that in my own class. .NET framework should not compile ! Does someone has an explanation of this mystery ?

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  • I am designing a bus timetable using SQL. Each bus route has multiple stops, do I need a different t

    - by Henry
    I am trying to come up with the most efficient database as possible. My bus routes all have about 10 stops. The bus starts at number one until it reaches the 10th stop, then it comes back again. This cycle happens 3 times a day. I am really stuck as to how I can efficiently generate the times for the buses and where I should store the stops. If I put all the stops in one field and the times in another, the database won't be very dynamic. If I store all the stops one by one in a column and then the times in another column, there will be a lot of repeating happening further down as one stop has multiple times. Maybe I am missing something, I've only just started learning SQL and this is a task we have been set. Thanks in advance.

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  • IEnumerable<T> representing the "rest" of an IEnumerable<T> sequence

    - by Henry Jackson
    If I am walking through an IEnumerable<T>, is there any way to get a new IEnumerable<T> representing the remaining items after the current one. For example, I would like to write an extension method IEnumerator<T>.Remaining(): IEnumerable<int> sequence = ... IEnumerator<int> enumerator = sequence.GetEnumerator(); if (enumerator.MoveNext() && enumerator.MoveNext()) { IEnumerable<int> rest = enumerator.Remaining(); // 'rest' would contain elements in 'sequence' start at the 3rd element } I'm thinking of the collection of a sort of singly-linked list, so there should be a way to represent any remaining elements, right? I don't see any way to do this exposed on either IEnumerable<T> or IEnumerator<T>, so maybe it's incompatible with the notion of a potentially unbounded, nondeterministic sequence of elements.

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  • Excel workbooks produced by POI don't work when linked

    - by Eric Nicolas
    Here is what I'm doing : Create a workbook in memory (book = new HSSFWorkbook(), ...) Save it to disk (book.write(...)) Open in Excel (ok) Create another workbook in Excel, which links to the first one (=PoiWorkbook?xls!A1) Close Excel Then everytime I open the second workbook again, all the links are #N/A, unless I also open the POI-generated workbook at the same time. I never saw this behaviour with standard workbooks created in Excel. Anyone has seen this and found a workaround ? Thanks.

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  • Move 3 rectangles up in their X but keep order of rectangles

    - by Nicolas Martel
    I have 3 rectangles being rendered here. Let's say i wanted to move them all above the line yet keep their order, how would i go about that? I tried subtracting the Y and height rather than adding the Y it but as expected, the lower rectangle goes at the top, middle stays in the middle and top goes to the bottom before: after: So is there any simple solution to render them just above rather than having to change all values ?

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  • Longest common substring from more than two strings - Python

    - by Nicolas Noël
    Hi, I'm looking for a python library for finding the longest common substring from a set of python strings. I'have read that it exist to way to solve this problem : - one using suffix trees - the other using dynamic programming. The method implemented is not important. Otherwise, it is important to have a implementation that can be use for a set of strings and not only two strings Thanks,

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  • What is faster in MySQL? WHERE sub request = 0 or IN list

    - by Nicolas Manzini
    Hello I was wondering what is better in MySQL. I have a SELECT querry that exclude every entry associated to a banned userID currently I have a subquerry clause in the WHERE statement that goes like AND (SELECT COUNT(*) FROM TheBlackListTable WHERE userID = userList.ID AND blackListedID = :userID2 ) = 0 Which will accept every userID not present in the TheBlackListTable Would it be faster to retrieve first all Banned ID in a previous request and replace the previous clause by AND creatorID NOT IN listOfBannedID Thank you!

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  • Type classe, generic memoization

    - by nicolas
    Something quite odd is happening with y types and I quite dont understand if this is justified or not. I would tend to think not. This code works fine : type DictionarySingleton private () = static let mutable instance = Dictionary<string*obj, obj>() static member Instance = instance let memoize (f:'a -> 'b) = fun (x:'a) -> let key = f.ToString(), (x :> obj) if (DictionarySingleton.Instance).ContainsKey(key) then let r = (DictionarySingleton.Instance).[key] r :?> 'b else let res = f x (DictionarySingleton.Instance).[key] <- (res :> obj) res And this ones complains type DictionarySingleton private () = static let mutable instance = Dictionary<string*obj, _>() static member Instance = instance let memoize (f:'a -> 'b) = fun (x:'a) -> let key = f.ToString(), (x :> obj) if (DictionarySingleton.Instance).ContainsKey(key) then let r = (DictionarySingleton.Instance).[key] r :?> 'b else let res = f x (DictionarySingleton.Instance).[key] <- (res :> obj) res The difference is only the underscore in the dictionary definition. The infered types are the same, but the dynamic cast from r to type 'b exhibits an error. 'this runtime coercition ... runtime type tests are not allowed on some types, etc..' Am I missing something or is it a rough edge ?

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  • How to retrieve view of MultiIndex DataFrame

    - by Henry S. Harrison
    This question was inspired by this question. I had the same problem, updating a MultiIndex DataFrame by selection. The drop_level=False solution in Pandas 0.13 will allow me to achieve the same result, but I am still wondering why I cannot get a view from the MultiIndex DataFrame. In other words, why does this not work?: >>> sat = d.xs('sat', level='day', copy=False) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Python27\lib\site-packages\pandas\core\frame.py", line 2248, in xs raise ValueError('Cannot retrieve view (copy=False)') ValueError: Cannot retrieve view (copy=False) Of course it could be only because it is not implemented, but is there a reason? Is it somehow ambiguous or impossible to implement? Returning a view is more intuitive to me than returning a copy then later updating the original. I looked through the source and it seems this situation is checked explicitly to raise an error. Alternatively, is it possible to get the same sort of view from any of the other indexing methods? I've experimented but have not been successful. [edit] Some potential implementations are discussed here. I guess with the last question above I'm wondering what the current best solution is to index into arbitrary multiindex slices and cross-sections.

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  • convert table of input values into 2D array or struct?

    - by Henry
    What's the easiest way to convert a table of values (2D grid like Excel), into a 2D array or struct in ColdFusion? Thought of using dot in the name and eval them to become struct, but AFAIK name attribute of input field can only contains alpha numeric and underscore, and first char must be an alpha char.

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  • Can .NET Task instances go out of scope during run?

    - by Henry Jackson
    If I have the following block of code in a method (using .NET 4 and the Task Parallel Library): var task = new Task(() => DoSomethingLongRunning()); task.Start(); and the method returns, will that task go out of scope and be garbage collected, or will it run to completion? I haven't noticed any issues with GCing, but want to make sure I'm not setting myself up for a race condition with the GC.

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  • How can I multiply each item in an array easily with PHP?

    - by Henry
    I have an array called $times. It is a list of small numbers (15,14,11,9,3,2). These will be user submitted and are supposed to be minutes. As PHP time works on seconds, I would like to multiply each element of my array by 60. I've been playing around with array_walk and array_map but I can't get those working :S Thanks.

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  • WHERE IN Query with two recordsets in Access VBA

    - by Henry Owens
    Hi All, My first post here, so i hope this is the right area. I am currently trying to compare 2 recordsets, one of which has come from an Excel named range, and the other from a table in the Access database. The code for each is: Set existingUserIDs = db.OpenRecordset("SELECT Username FROM UserData") Set IDsToImport = exceldb.OpenRecordset("SELECT Username FROM Named_Range") The problem is that I would like to somehow compare these two recordsets, without looping (there is a very large number of records). Is there any way to do a join or similar on these recordsets? I can not do a join before creating the recordsets, due to the fact that one is coming from Excel, and the other from Access, so they are two different DAO databases. The end goal is that I will choose only the usernames that do not already exist in the access table to be imported (so in an SQL query, it would be a NOT IN(table)). Thanks for any assistance you can lend! Regards, Bricky.

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  • iPhone WebApp Question

    - by Henry D'Andrea
    I have this code- /** Save the web view as a screenshot. Currently only supports saving to the photo library. / - (void)saveScreenshot:(NSArray)arguments withDict:(NSDictionary*)options { CGRect screenRect = [[UIScreen mainScreen] bounds]; CGRect imageRect = CGRectMake(0, 0, CGRectGetWidth(screenRect), CGRectGetHeight(screenRect)); UIGraphicsBeginImageContext(imageRect.size); [webView.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); UIImageWriteToSavedPhotosAlbum(viewImage, self, nil, nil); UIAlertView *alert= [[UIAlertView alloc] initWithTitle:nil message:@"Image Saved" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert show]; [alert release]; } This is for saving whatever you drew in my app. How would I add the button for this in the HTML code. How do i call from it?

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  • post-install hook for a particular gem

    - by Henry Flower
    Here is what I've googled: http://www.mail-archive.com/[email protected]/msg02168.html Gem.post_install do |installer| puts "!!! #{installer.spec.full_name} INSTALLED !!!" end But where to put this snipped? If I put it in my Rakefile and/or src_of_myproject/lib/rubygems_plugin.rb file, than build the gem, install it--but the expected string is never printed after the installation. I'm totally confused. How to embed the post-install hook into the gem spec? Update: it's getting more interesting. If I put Gem.post_uninstall hook in src_of_myproject/lib/rubygems_plugin.rb--that hook works. Gem.post_uninstall do |uninstaller| puts "!!! #{uninstaller.spec.full_name} UNINSTALLED !!!" end Hm... And wtf is with Gem.post_install?

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  • How to validate data for a Rest Service with symfony

    - by Nicolas V.
    For example imagine I've a rest service, this service takes two parameters : phone number text The goal is to send the message via a sms gateway. I've a class Message which has two properties destinationNumber and textMessage. Before calling the gateway, I want to validate the data received by the rest service. I've two questions relatives to how to validate the data : Where should I put the validation rules ? in the model or in the controller How should I use the sfValidator* classes from Symfony to validate the data (ie. where's the documentation for using sfValidator or where can I find some examples) Any help would be appreciated.

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  • How to change FPU context in signal handler (C++/Linux)

    - by Henry Fané
    I wrote a signal handler to catch FPE errors. I need to continue execution even if this happens. I receive a ucontext_t as parameter, I can change the bad operand from 0 to another value but the FPU context is still bad and I run into an infinite loop ? Does someone already manupulate the ucontext_t structure on Linux ? I finally found a way to handle these situations by clearing the status flag of ucontext_t like this: ... const long int cFPUStatusFlag = 0x3F; aContext->uc_mcontext.fpregs->sw &= ~cFPUStatusFlag; ... 0x3F is negated to put 0 in the 6 bits of the status register of the FPU (x87). Doing this implies to check for FPE exceptions after calculation.

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  • Process every pair in a sequence

    - by Henry Jackson
    I'm looking for a concise way to process every (unordered) pair of elements in a sequence in .NET. I know I can do it with nested foreach loops, but I was looking for something a little more readable. I was imagining something like a modified Any() extension method: IEnumerable<Transaction> transactions = ... if (transactions.AnyPair( (first, second) => first.UniqueID == second.UniqueID)) throw ... Or maybe a foreach-style one: IEnumerable<JigsawPiece> pieces = ... pieces.ForEachPair( (first, second) => { TryFit(first, second); }); This question has been asked for other languages (e.g. see http://stackoverflow.com/questions/942543/operation-on-every-pair-of-element-in-a-list), but I'm looking for a .NET solution.

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