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  • git-svn merge 2 svn branches

    - by idimba
    I using svn. I have two branches and on both of them were performed a lot of changes. In addition of one of the branches a lot of files were renamed, so now svn can not help me merge changes in those files (well know svn limitation). Is it possible using git-svn to perform the merge of the branches? Will git-svn hanndle renamed files too? Thanks

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  • Disk based HashMap

    - by synic
    Does Java have (or is there a library available) that allows me to have a disk based HashMap? It doesn't need to be atomic or anything, but it will be accessed via multiple threads and shouldn't crash if two are accessing the same element at the same time. Anyone know of anything?

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  • Basic principles of computer encryption?

    - by Andrew
    I can see how a cipher can be developed using substitutions and keys, and how those two things can become more and more complex, thus offering some protection from decryption through brute-force approaches. But specifically I'm wondering: what other major concepts beyond substitution and key are involved? is the protection/secrecy of the key a greater vulnerability than the strength of the encryption? why does encryption still hold up when the key is 'public' ? are performance considerations a major obstacle to the development of more secure encryption?

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  • Lifetime issue of IDisposable unmanaged resources in a complex object graph?

    - by stakx
    This question is about dealing with unmanaged resources (COM interop) and making sure there won't be any resource leaks. I'd appreciate feedback on whether I seem to do things the right way. Background: Let's say I've got two classes: A class LimitedComResource which is a wrapper around a COM object (received via some API). There can only be a limited number of those COM objects, therefore my class implements the IDisposable interface which will be responsible for releasing a COM object when it's no longer needed. Objects of another type ManagedObject are temporarily created to perform some work on a LimitedComResource. They are not IDisposable. To summarize the above in a diagram, my classes might look like this: +---------------+ +--------------------+ | ManagedObject | <>------> | LimitedComResource | +---------------+ +--------------------+ | o IDisposable (I'll provide example code for these two classes in just a moment.) Question: Since my temporary ManagedObject objects are not disposable, I obviously have no control over how long they'll be around. However, in the meantime I might have Disposed the LimitedComObject that a ManagedObject is referring to. How can I make sure that a ManagedObject won't access a LimitedComResource that's no longer there? +---------------+ +--------------------+ | managedObject | <>------> | (dead object) | +---------------+ +--------------------+ I've currently implemented this with a mix of weak references and a flag in LimitedResource which signals whether an object has already been disposed. Is there any better way? Example code (what I've currently got): LimitedComResource: class LimitedComResource : IDisposable { private readonly IUnknown comObject; // <-- set in constructor ... void Dispose(bool notFromFinalizer) { if (!this.isDisposed) { Marshal.FinalReleaseComObject(comObject); } this.isDisposed = true; } internal bool isDisposed = false; } ManagedObject: class ManagedObject { private readonly WeakReference limitedComResource; // <-- set in constructor ... public void DoSomeWork() { if (!limitedComResource.IsAlive()) { throw new ObjectDisposedException(); // ^^^^^^^^^^^^^^^^^^^^^^^ // is there a more suitable exception class? } var ur = (LimitedComResource)limitedComResource.Target; if (ur.isDisposed) { throw new ObjectDisposedException(); } ... // <-- do something sensible here! } }

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  • How automatically fill a form with jQuery ?

    - by Shady
    Hi, I have a website that changes his inputs ids, and I'm trying to make a semi auto-login, filling automatically the email and the password part... I'm doing this with greasemonkey and jQuery... I'm trying something like this $("input[@type=text]").setValue("[email protected]"); but had no success... The Page has only the login part, two text type inputs... What am I missing here?

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  • Cloud computing over Client-server: differences, cons and pros ?

    - by Vimvq1987
    As far as I know, Cloud computing might be a evolution in software architect, and it will replace some current architectures, such as client-server. These two architecture seem to share similarities for me (I know very little about both), but I don't know the differences between them. What are the cons and pros of cloud computing over client-server architecture? Thank you so much.

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  • Normalizing URI to make it work correctly with MakeRelativeUri

    - by dr. evil
    Dim x AS New URI("http://www.example.com/test//test.asp") Dim rel AS New URI("http://www.example.com/xxx/xxx.asp") Console.Writeline(x.MakeRelativeUri(rel).Tostring()) In here output is: ../../xxx/xxx.asp Which looks correct almost all web servers will process the two of the following as same request: http://www.example.com/test//test.asp http://www.example.com/test/test.asp What's the best way to fix this behaviour is there any API to do this, or shall manually create a new URI and remove all // in the path?

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  • Zend_Paginator - Increase querys

    - by poru
    Hello, I started using Zend_Paginator, it works everything fine but I noticed that there is one more query which slows the load time down. The additional query: SELECT COUNT(1) AS `zend_paginator_row_count` FROM `content` The normal query: SELECT `content`.`id`, `content`.`name` FROM `content` LIMIT 2 PHP: $adapter = new Zend_Paginator_Adapter_DbSelect($table->select()->from($table, array('id', 'name'))); $paginator = new Zend_Paginator($adapter); Could I merge the two querys into one (for better performance)?

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  • "Subclassing" show in Haskell?

    - by me2
    Lets say I have the following: data Greek = Alpha | Beta | Gamma | Phi deriving Show I want to use the default showing of all items except Beta, which I want to say "two". Can I do this?

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  • Align UItextFields one below the other in interface builder

    - by Dave
    How to align 2 textfields one below the other in a tool bar and display a button on the left side (or right side) in the vertical middle of those two fields? Please see the image to know what I am talking about. http://developer.apple.com/iphone/library/documentation/userexperience/conceptual/mobilehig/art/ui_textfields.jpg

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  • How to create a "facade" table?

    - by tputkonen
    A legacy database contains a join table which links tables table1 and table2, and contains just two foreign keys: TABLE_ORIG: table1_id table2_id In order to utilize this table using JPA I would need to create a surrogate primary key to the link table. However, the existing table must not be modified at all. I would like to create another table which would contain also a primary key in addition to the foreign keys: TABLE_NEW: id table1_id table2_id All changes to TABLE_ORIG should be reflected in TABLE_NEW, and vice versa. Is this doable in mysql?

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  • get the time offset from GMT from latitude longitude

    - by ravun
    Is there a way to estimate the offset from GMT (or time zone) from a latitude/longitude? I've seen geonames, but this would need to work long term and we don't really want to rely on a web service. It'd just be used for determining whether to display "today" or "tonight" when giving information to various users so it wouldn't need to be too accurate (an hour or two off wouldn't be bad).

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  • Export list as .txt (Python)

    - by Nimbuz
    My Python module has a list that contains all the data I want to save as a .txt file somewhere. The list contains several tuples like so: list = [ ('one', 'two', 'three'), ('four', 'five', 'six')] How do I print the list so each tuple item is separated by a tab and each tuple is separated by a newline? Thanks

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  • Enum values doubts?

    - by maddy
    Hi all, Is there any possible way to do any arithmetic operations on enum values enum Type{Zero=0,One,Two,Three,Four,Five,Six,Seven,Eight,Nine}; main() { enum Type Var = Zero; for(int i=0;i<10;i++) { switch(Var) { case Zero: /*do something*/ case One: /*Do something*/ ..... } Var++;(I know that this increment is not possible,But is there anyway by which we can have this variable named Var increment. regards maddy

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  • Product with Last Purchase Date

    - by mikewin86
    Hello , I would like to query from SQL Server 2000 Database.I have got two tables. They are Purchase and PurchaseDetails. I would like to get product records with Last Purchase ID but I can't query with the following statements.So please help me. SELECT TOP 100 PERCENT dbo.Purchase.PurchaseID AS LastOfPurchaseID, dbo.PurchaseDetails.ProductID, MAX(dbo.Purchase.PurchaseDate) AS LastOfPurchaseDate FROM dbo.Purchase INNER JOIN dbo.PurchaseDetails ON dbo.Purchase.PurchaseID = dbo.PurchaseDetails.PurchaseID GROUP BY dbo.PurchaseDetails.ProductID, dbo.Purchase.PurchaseDate,dbo.Purchase.PurchaseID ORDER BY MAX(dbo.Purchase.PurchaseDate) DESC

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  • Importing a SQL Server 2005 Profile Trace Template into SQL 2008

    - by David Stein
    I'm using SQL Server 2008, but my ERP Vendor only offers a SQL 2005 trace template that they'd like me to run on my system. When I attempt to import it, I receive confirmation that it was successfully imported. However, it does not show up in the list of available templates. I've done this on two separate servers to the same effect. Is this a known problem with SQL Server 2008? I Googled unsuccessfully.

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  • Using a visual tool to view changes on git repository

    - by Phuong Nguy?n
    I'm coming to an existing project in which people used git to track everything from scratch. I want to have a tool to view the differences between several commits. gitk does a good job, but talking about human readability, it's does not facilitate me much. Is there a better solution? I'm looking for a set of tools that allow me to easily compare branches (some how like winmerge - Display two version in parallel and highlight the changes), and running on Mac.

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  • Can a memory page be moved by modifying the page table?

    - by Adam
    Is it possible (on any reasonable OS, preferably Linux) to swap the contents of two memory pages by only modifying the page table and not actually moving any data? The motivation is a dense matrix transpose. If the data were blocked by page size it would be possible to transpose the data within a page (fits in cache) then swap pages to move the blocks into their final place. A large matrix would have many many pages moved, so hopefully flushing the TLB wouldn't cause trouble.

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  • Jquery UI: How to define different CSS styles for Tabs and Slider on the same page

    - by Kelvin
    Hello all, I have two elements on the same page that are using the same stylesheet: Jquery Tabs and Jquery Slider. I cannot redefine classes of slider since change of css will affect both elements. Tabs using these classes: ui-tabs ui-widget ui-widget-content ui-corner-all And these are used in Slider: ui-slider ui-slider-horizontal ui-widget ui-widget-content ui-corner-all How can I modify slider css without modifying one for tabs? Thanks

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