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• An algo for generating code callgraphs

  - by Shrey

  I am working on a project which requires generating some metrices of a code (it can be C/C++/Java/Python). One of the metrices can be that I create a callgraph after parsing the code entered (the programs are expected to be small - probably under 1000L). As of now, I am looking for a way to create a program (it can be C/Python) which can take as input a file (C/C++/Python/Java) and then create a textual output containing approximate calling sequence as well as tokens in the code file. As of now, I have looked at some other tools which do the same thing - like splint, pylint, codeviz etc. So, I have two ways of solving my problem: Read and understand the algorithm these tools use (tokenization-graph generation etc) Or, have a basic algo (something like very high level steps) and then sit down to create each of them as I want them to be. I know, re-inventing the wheel is not a good idea, but, I would still like to give option (2) a shot. Only issue is, currently I am a blank. My question: Does any one have any knowhow about how to create code graphs? Any hints as to what I should do? Any top levels steps which I can follow? Thanks a lot.

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• F# - POCO Class

  - by ebb

  Hey there! I'm trying to write a POCO class in proper F#... But something is wrong.. The C# code that I want to "translate" to proper F# is: public class MyTest { [Key] public int ID { get; set; } public string Name { get; set; } } The closest I can come to the above code in F# is something like: type Mytest() = let mutable _id : int = 0; let mutable _name : string = null; [<KeyAttribute>] member x.ID with public get() : int = _id and public set(value) = _id <- value member x.Name with public get() : string = _name and public set value = _name <- value However when I try to access the properties of the F# version it just returns a compile error saying "Lookup on object of indeterminate type based on information prior to this program point. A type annotation may be needed prior to this program point to constrain the type of the object. This may allow the lookup to be resolved." The code thats trying to get the property is a part of my Repository (I'm using EF Code First). module Databasethings = let GetEntries = let ctx = new SevenContext() let mydbset = ctx.Set<MyTest>() let entries = mydbset.Select(fun item -> item.Name).ToList() // This line comes up with a compile error at "item.Name" (the compile error is written above) entries What the hell is going on? Thanks in advance!

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• Organising UI code in .NET forms

  - by sb3700

  Hi I'm someone who has taught myself programming, and haven't had any formal training in .NET programming. A while back, I started C# in order to develop a GUI program to control sensors, and the project has blossomed. I was just wondering how best to organise the code, particularly UI code, in my forms. My forms currently are a mess, or at least seem a mess to me. I have a constructor which initialises all the parameters and creates events. I have a giant State property, which updates the Enabled state of all my form control as users progress through the application (ie: disconnected, connected, setup, scanning) controlled by a States enum. I have 3-10 private variables accessed through properties, some of which have side-effects in changing the values of form elements. I have a lot of "UpdateXXX" functions to handle UI elements that depend on other UI elements - ie: if a sensor is changed, then change the baud rate drop down list. They are separated into regions I have a lot of events calling these Update functions I have a background worker which does all the scanning and analysis. My problem is this seems like a mess, particularly the State property, and is getting unmaintainable. Also, my application logic code and UI code are in the same file and to some degree, intermingled which seems wrong and means I need to do a lot of scrolling to find what I need. How do you structure your .net forms? Thanks

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• Call javascript function from asp.net code behind after server side code executes

  - by Dkong

  I have an asp.net button, that when clicked calls a code behind function. The function does some evaluation, and then I want to call javascript from within this asp.net function.

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• Debugging unmanaged code while debugging managed code

  - by sc_ray

  Hi, The .NET 3.5 application I am working on consists of bunch of different solutions. Some of these solutions consist of managed code(C#) and others have unmanaged code(C++). Methods written in C# communicate with the ones written in C++. I am trying to trace the dependencies between these various functions and I thought setting breakpoints on the solution consisting my C++ functions. One of the C# solutions have the startup project. I run this solution in debug mode with the expectation that the breakpoints in my unmanaged code will be hit but nothing really happens. Can somebody guide me through the process of debugging mixed applications such as these using the Visual Studio IDE? Thanks

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• How to write Tetris in Scala? (code review)

  - by eed3si9n

  Today's the 25th birthday of Tetris. I believe writing Tetris clone is one of the best ways to familiarize oneself to a new language or a platform. It's not completely trivial and it lends itself well to learning language specific constructs like iterators and closures. I've been hearing about Scala, and finally decided to read some docs and write a Tetris clone. So, this is my first Scala code. I did try to use functional constructs, but am sure there are lots of things I can improve to do it more Scala way. Please give me suggestions using comment. Also other submissions of Tetris clone in Scala are welcome too. I'm aware that the actual question itself is somewhat subjective, but I think this is of some value since others can use this as example (or anti-example) code. Edit: Let me rephrase the question. What can I do to make the code more Scala-ish?

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• Cannot run code on device

  - by lostInTransit

  Hi I have some source code which I had developed and later gave to another team. They signed it with their certificate and provisioning profile. Now I have the code back and have set the appropriate values in the project properties for code signing identity (with my cert and profile). But when I run the application on a device, I get an error showing the other team's certificate and prompting that the provisioning profile does not exist. I don't know where it is being referenced. Can someone please help. Thanks.

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• Code reviews for larger MVC.NET team using TFS

  - by Parrots

  I'm trying to find a good code review workflow for my team. Most questions similar to this on SO revolve around using shelved changes for the review, however I'm curious about how this works for people with larger teams. We usually have 2-3 people working a story (UI person, Domain/Repository person, sometimes DB person). I've recommended the shelf idea but we're all concerned about how to manage that with multiple people working the same feature. How could you share a shelf between multiple programmers at that point? We worry it would be clunky and we might easily have unintended consequences moving to this workflow. Of course moving to shelfs for each feature avoids having 10 or so checkins per feature (as developers need to share code) making seeing the diffs at code review time painful. Has anyone else been able to successfully deal with this? Are there any tools out there people have found useful aside from shelfs in TFS (preferably open-source)?

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• in TFS can we customize the merge algorithm (conflict resolution)

  - by Jennifer Zouak

  In our case we want to igonore changes in code comment headers for generated code. In Visual Studio, we can change the merge tool (GUI that pops up) and use a 3rd party tool that is able to be customized to ignore changes (http://msdn.microsoft.com/en-us/library/ms181446.aspx). Great, so a file comparison no longer highlights code comments as differences. However when it comes time to checkin, the TFS merge algorith is still prompting us to resolve conflicts. Is there any way to better inform the merge conflict resolution algorithm about which changes are actually important to us? Or can we replace the algorithm or otherwise have it subcontract its work to a 3rd party?

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• Running NUnit tests in Visual Studio 2010 with code coverage

  - by adrianbanks

  We have recently upgraded from Visual Studio 2008 to Visual Studio 2010. As part of our code base, we have a very large set of NUnit tests. We would like to be able to run these unit tests within Visual Studio, but with code coverage enabled. We have ReSharper, so can run the tests within Visual Studio, but it does not allow the code coverage tool to do its thing and generate the coverage statistics. Is there any way to make this work, or will we have to convert the tests over to MSTest?

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• Funniest code names for software projects

  - by furtelwart

  Developers are creative. Not as they create wonderfull GUIs or proof their sense for art with good color combinations, but with code names. Every project has a code name, sometimes official, sometimes private (with a good reason!). Here are my favourites: Android: 1.6 = Donut 2.0 = Eclaire (picture of Google's eclaire) grml (Live distribution based on Debian GNU/Linux, comes from Austria therefore in German) Hustenstopper (cough stopper) Eierspass (egg fun) Meilenschwein (mile pig, it's a pun with milestone) Lackdose-Allergie (lacquer can allergy, it's a pun with lactose allergy) Hello-Wien (pun with Halloween, Wien being German for Vienna) I really like to see the funniest code names you ever heard of. Aren't there any more funny project names?

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• Typical practice for redistributing third party source code with your source code

  - by bglenn

  I'm releasing an application I wrote as an open-source project by creating a public source-code repository. I use a third-party library which is also open-source and freely redistributable. I'm not versioning the third-party library, but should I include it in my repository for the convenience of those cloning the repository or should I expect them to download the third-party library on their own? To be clear, I'm not asking if I should version the third-party code or if I can redistribute it, but whether it is standard practice to include third-party source code as a convenience.

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• Obtaining C++ Code Coverage

  - by anon

  I'm on Linux. My code is written in C++. My program is non-interactive; it runs as "./prog input-file", processes the file, and exits. I have various unit tests "input-file0, input-file1, input-file2, ..." For designing new unit tests, I want to know what lines of code existing tests do not cover. Question: Given that I control how "prog" is compiled/run; how can I get list of the lines of code that "./prog input-file" does not hit? Thanks!

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• How to detect code duplication during development ?

  - by David Dibben

  We have a fairly large code base, 400K LOC of C++, and code duplication is something of a problem. Are there any tools which can effectively detect duplicated blocks of code? Ideally this would be something that developers could use during development rather than just run occasionally to see where the problems are. It would also be nice if we could integrate such a tool with CruiseControl to give a report after each check in. I had a look at Duploc some time ago, it showed a nice graph but requires a smalltalk environment to use it, which makes running it automatically rather difficult. Free tools would be nice, but if there are some good commercial tools I would also be interested.

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• Useful Eclipse Java Code Templates

  - by Jon

  You can create various Java code templates in Eclipse via the Window->Preferences->Java -> Editor -> Templates e.g. sysout is expanded to: System.out.println(${word_selection}${});${cursor} You can activate this by typing sysout followed by CTRL+SPACE What useful Java code templates do you currently use? Include the name and description of it and why it's awesome. There's an open bounty on this for an original/novel use of a template rather than a built-in existing feature. Create Log4J logger Get swt color from display Syncexec - Eclipse Framework Singleton Pattern/Enum Singleton Generation Readfile Const Traceout Format String Comment Code Review String format Try Finally Lock Message Format i18n and log Equalsbuilder Hashcodebuilder Spring Object Injection Create FileOutputStream

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• gcc-4.2 failed with exit code 1 iphone

  - by SKayser

  Hi, I've seen this error with different variations on discussion forums but being a non programmer I'm not sure how to progress this. Basically I have code which I found to help me with changing the background colors of cells on a grouped uitableview. The code introduced a line as such: CGContextAddArcToPoint(c, minx, miny, midx, miny, ROUND_SIZE); This gave an error indicated that it wasn't declared, so I added to my .h file the following under import uikit: #import <UIKit/UIKit.h> #define ROUND_SIZE 10 Now it shows that I have an error: Command/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc-4.2 failed with exit code 1 iphone Some discussions talk about libraries but because I don't have a programming background I don't understand what to do. I also see that some people show a log output but I'm not sure where that comes from as I don't get any debug windows because I'm guessing it doesn't get that far. I simply click 'Build and Go' and I get this error in the Message window. Any thoughts?

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• How Should I Print Documentation from Google Code?

  - by peter.newhook

  Google does a decent job of documenting their API (like Closure http://code.google.com/closure/compiler/docs/overview.html) but I find it hard to read because it's broken into such short pages. I like to leaf through my docs and read it on paper. Has anyone found a good way to print from the documentation on Google Code. It could be a PDF, or even just a long page with lots of content. Please note, I'm not talking about the Wikis in the Open Source side of Google Code. I'm referring to the API docs published by Google.

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• Encrypt php code

  - by riad

  Hi all, I create a software using php. Now need to sale this software .So, I need to encrypt my code that nobody can view my source code. can anybody help me to do: 1. Encrypt my PHP code but software functioning will remaining same. 2. Also I need to bind the software for a particular authorized pc & it will not run any other pc except my authentication. How can I do that? encrypt using LAN MAC address? or any other idea? pls help!

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• More Code Assist in Eclipse PDT For HTML

  - by Mike

  I am trying to come over from dreamweaver to eclipse. In eclipse when I am in a php file writing html. If I just type a "<" then the code assist popup will come up with all the options I can choose from. I would like to know if the code assist can appear in more places though. If I type "<div" and hit space can I get another code assist popup? If so, how?

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• Code Golf: Phone Number to Words

  - by Nick Hodges

  Guidelines for code-golf on SO We've all seen phone numbers that are put into words: 1-800-BUY-MORE, etc. What is the shortest amount of code you can write that will produce all the possible combinations of words for a 7 digit US phone number. Input will be a seven digit integer (or string, if that is simpler), and assume that the input is properly formed. Output will be a list of seven character strings that For instance, the number 428-5246 would produce GATJAGM GATJAGN GATJAGO GATJAHM GATJAHN GATJAHO and so on..... Winning criteria will be code from any language with the fewest characters that produce every possible letter combination. Additional Notes: To make it more interesting, words can be formed only by using the letters on a North American Classic Key Pad phone with three letters per number as defined here.That means that Z and Q are excluded. For the number '1', put a space. For the number '0', put a hyphen '-' Bonus points awarded for recognizing output as real English words. Okay, not really. ;-)

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• Generating code for service proxies

  - by Hadi Eskandari

  I'm trying to generate some additional code base on the auto-generated webservice proxies in my VS2010 solution, I'm using a T4 template to do so. The problem is, automatically generated proxies are added in "Service Reference" folder but ProjectItems (files) are hidden by default and the following code does not find them in the project structure: var sr = GetProjectItem(project, "Service References"); if(sr != null) { foreach(ProjectItem item in sr.ProjectItems) { foreach(var file in item.ProjectItems) { //Services.Add(new ServiceInfo { Name = file.Name }); } } } The above code runs and although service reference is found, and there are ProjectItems under that node (named by the webservice reference name), under object under that node is of type System.__ComObject and I'm not sure how to progress. Any help is appreciated.

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• Code Analysis Error: Declare types in namespaces

  - by George

  Is VS2010, I analyzed my code and got this error: Warning 64 CA1050 : Microsoft.Design : 'ApplicationVariables' should be declared inside a namespace. C:\My\Code\BESI\BESI\App_Code\ApplicationVariables.vb 10 C:\...\BESI\ Here is some reference info on the error. Essentially, I tried to create a class to be used to access data in the Application object in a typed way. The warning message said unless I put my (ApplicationVariables) class in a Namespace, that I wouldn't be able to use it. But I am using it, so what gives? Also, here is a link to another StackOverflow article that talks about how to disable this warning in VS2008, but how would you disable it for 2010? There is no GlobalSuppressions.vb file for VS2010. Here is the code it is complaining a bout: Public Class ApplicationVariables 'Shared Sub New() 'End Sub 'New Public Shared Property PaymentMethods() As PaymentMethods Get Return CType(HttpContext.Current.Application.Item("PaymentMethods"), PaymentMethods) End Get Set(ByVal value As PaymentMethods) HttpContext.Current.Application.Item("PaymentMethods") = value End Set End Property 'Etc, Etc... End Class

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• Free Testing / Code Coverage systems for C++

  - by Billy ONeal

  I'd like to start using a Test Driven Development system for a private project since I saw my employer using it and realized it was very useful. My employer's project was in C# but mines are in C and C++. I looked around and saw that several packages exist for both Java and .NET (for example: NCover, NUnit, ...). Unfortunately I found it difficult to find good C++ testing frameworks. Do you know of any unit testing frameworks that satisfy the following requirements? IMPORTANT: Must provide code coverage statistics, as I'd like to have some idea of how well my tests cover my code-base. Must be free Usable with C++ projects EDIT: To be clear, I know of many existing unit test frameworks. The code coverage piece is what's most important.

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• iPhone - cannot run code on device

  - by lostInTransit

  Hi I have some source code which I had developed and later gave to another team. They signed it with their certificate and provisioning profile. Now I have the code back and have set the appropriate values in the project properties for code signing identity (with my cert and profile). But when I run the application on a device, I get an error showing the other team's certificate and prompting that the provisioning profile does not exist. I don't know where it is being referenced. Can someone please help. Thanks.

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• Is there an IDE that provides code completion for Python

  - by Justin Walgran

  I am quite fond of the Intellisense code completion baked into Microsoft Visual Studio. I find that I only type 2 to 4 characters of any given keyword which drasticaly speeds up my coding. Now that I have been spending time writing some Python code I find myself reaching for ctrl+space. Are there any IDEs that support code completion in Python? I do my python development on a Mac so an OS x tool would be preferable. It seems like the doc string property of Python methods is a perfect match for inline API discovery.

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