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• Variadic templates in Scala

  - by Thomas Jung

  Suppose you want to have something like variadic templates (the ability to define n type parameters for a generic class) in Scala. For example you do not want to define Tuple2[+T1, +T2] and Tuple3[+T1, +T2, +T3] but Tuple[T*]. Are there other options than HLists?

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• Makefile for DOS/Windows and Cygwin

  - by Thomas Matthews

  I need to have a makefile work under DOS (Windows) and Cygwin. I having problems with the makefile detecting the OS correctly and setting appropriate variables. The objective is to set variables for the following commands, then invoke the commands in rules using the variables: Delete file: rm in Cygwin, del in DOS. Remove directory: rmdir…

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• CodeDom - can I generate an anonymous method?

  - by Thomas

  I can't find any way to generate an anonymous method. any ideas?

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• Handle a More Navigation Controller in an Interface Builder based TabBar Application

  - by Thomas Joulin

  Hi, I'm still not clear on how and when to use interface builder. I have a tabbar-based application, in which I added 6 navigations controllers. Instead of having 6 tabs, I would like 3 plus a "More" tab which allows the user to configure the tabs he wants. Is there any way to do that with IB ? And if not, how can I move from IB to a code-based…

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• struct.error: unpack requires a string argument of length 4

  - by Thomas O

  Python says I need 4 bytes for a format code of "BH": struct.error: unpack requires a string argument of length 4 Here is the code, I am putting in 3 bytes as I think is needed: major, minor = struct.unpack("BH", self.fp.read(3)) "B" = Unsigned char (1 byte) + "H" unsigned short (2 bytes) = 3 bytes (!?) struct.calcsize("BH") says 4 bytes.

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• How to compile a C DLL for 64 bit with Visual Studio 2010?

  - by Daren Thomas

  I have a DLL written in C in source code. This is the code for the General Polygon Clipper (in case you are interested). I'm using it in a C# project via the C# wrapper provided on the homepage. This comes with a precompiled DLL. Since switching to a 64bit Development machine with Visual Studio 2010 and Windows 7 64 bit, the application won't…

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• Difference between Visual Basic and VBA

  - by Thomas Geritzma

  What is the difference between the two. I always thought VBA is somewhat 'crippled' version of VB, but when a friend asked me the other day I had no idea what the actual differences are. Also, when you use, for example, Excel, is that VB or VBA ?

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• How do I localize the jQuery DatePicker?

  - by Thomas Eyde

  I really need a localized dropdown calendar. An English calendar doesn't exactly communicate excellence on a Norwegian website ;-) I have experimented with the jQuery DatePicker, their website says it can be localized, however that doesn't seem to work. I am using ASPNET.MVC, and I really want to stick to one javascript library. In this case…

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• How to prevent session timeout in Symfony 1.0?

  - by Thomas Kohl

  I've used the PHP MVC framework Symfony to build an on-demand web app. It has an annoying bug - the session expires after about 15-30 minutes of inactivity. There is a config directive to prevent session expiration but it does not work. Even workarounds such as this one did not help me. I intend not to migrate to Symfony 1.1 (which fixes…

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• What (pure) Python library to use for AES 256 encryption?

  - by Daren Thomas

  I am looking for a (preferably pure) python library to do AES 256 encription and decryption. This library should support the CBC cipher mode and use PKCS7 padding according to the answer to an earlier question of mine. The library should at least work on Mac OS X (10.4) and Windows XP. Ideally just by dropping it into the source…

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• Logic Circuits & Shift Registers?

  - by Thomas Covenant

  Hey all, Could anyone point me to a logical diagram of, or show me how to create, a Parrallel In/Serial Out shift register that uses J-K Flip flops? I've found diagrams that use D types, but no J-K's. Any help would be greatly appreciated. Thanks.

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• Endless problems with a very simple python subprocess.Popen task

  - by Thomas

  I'd like python to send around a half-million integers in the range 0-255 each to an executable written in C++. This executable will then respond with a few thousand integers. Each on one line. This seems like it should be very simple to do with subprocess but i've had endless troubles. Right now im testing with code: // main()…

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• How do I get source file information with dumpbin /symbols when compiling with VS 2005?

  - by Thomas Dartsch

  I have a tool which uses the output of dumpbin /symbols to do some dependency analysis with our C/C++ libraries. When we compiled the libs with VS 6.0, the dumpbin COFF SYMBOL TABLE contained entries like 000 00000008 DEBUG notype Filename | .file x:\mydir\mysource.c allowing me to get the relationship between…

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• Flash CS4: I want to compile multiple fla's with one command, is make or ant a good solution?

  - by Thomas

  I'm working on a large Flash CS4 project with multiple swfs and want to consolidate my build process. Are ant/make overkill or have people out there successfully used them on large Flash projects? Thanks

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• Symfony app - how to add calculated fields to Propel objects?

  - by Thomas Kohl

  What is the best way of working with calculated fields of Propel objects? Say I have an object "Customer" that has a corresponding table "customers" and each column corresponds to an attribute of my object. What I would like to do is: add a calculated attribute "Number of completed orders" to my object when using it on View A…

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• How do I uninstall a Windows service if the files does not exist anymore?

  - by Thomas Jespersen

  How do I uninstall a .NET Windows Service, if the service files does not exists anymore? I installed a .NET Windows Service using InstallUtil. I have now deleteded the files, but forgot to run InstallUtil /u first, but the service is still listed in the Services MMC. So I guess I have to go into the registry? Or is there a…

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• Lightweight spinlocks built from GCC atomic operations?

  - by Thomas

  I'd like to minimize synchronization and write lock-free code when possible in a project of mine. When absolutely necessary I'd love to substitute light-weight spinlocks built from atomic operations for pthread and win32 mutex locks. My understanding is that these are system calls underneath and could cause a context switch…

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• iPhone Fonts: set small-caps

  - by Thomas Joos

  hi all, i'm branding an iphone app and the designer wants to display list items using Georgia. This is not a big deal, but he wants them do appear as small-caps.. is this possible to do in iPhone os3?

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• Why does Clojure hang after hacing performed my calculations?

  - by Thomas

  Hi all, I'm experimenting with filtering through elements in parallel. For each element, I need to perform a distance calculation to see if it is close enough to a target point. Never mind that data structures already exist for doing this, I'm just doing initial experiments for now. Anyway, I wanted to run some very basic…

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• How to scroll to the new added item in a ListView

  - by Thomas

  Hi all My application show a ListView with a button which allow user to add an element. When the user clicks on this button, another Activity is started to allow user to populate the new element. When the add is finished, we return to the previous Activity with the ListView and I would like to scroll to the new element. …

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• how to redirect terminal contents to a jtextpane?

  - by sonu thomas

  hi.. I was trying to run a java class file using java code.The aim was to direct the executing sequence of the terminal of fedora 10 into a frame with a textpane. My code is: import java.io.DataInputStream; import java.io.IOException; import javax.swing.JDialog; import javax.swing.JFrame; import…

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• C# 4: conflicting overloaded methods with optional parameters

  - by Thomas

  I have two overloaded methods, one with an optional parameter. void foo(string a) { } void foo(string a, int b = 0) { } now I call: foo("abc"); interestingly the first overload is called. why not the second overload with optional value set to zero? To be honest, I would have expect…

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• Requiring library consumers reference additional assembly when using certain types

  - by Thomas G. Mayfield

  I have library code that uses ICSharpCode.SharpZipLib under the hood to make it easy to use ZIP files as data sources when running integration tests. As it stands, if I reference my library from another project, the other project will compile just fine, but when it accesses the code that uses…

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• Linux: How to find all serial devices (ttyS, ttyUSB and others)?

  - by Thomas Tempelmann

  What is the proper way to get a list of all available serial ports/devices on a Linux system? In other words, when I iterate over all devices in /dev/, how do I tell which ones are serial ports in the classic way, i.e. those usually supporting baud rates and RTS/CTS flow control? The…

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• Could an ontology suitably replace an RDBMS for a web app?

  - by Thomas

  I'm considering storing the content of a web app in an RDF or OWL ontology instead of an RDBMS. However, when I research ontologies they seem to always exist in the context of publicly accessible data stores serving as the backbone of the semantic web. I've never heard of them being…

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