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  • Applications of concurrent queues and stacks in .NET 4

    - by Jon Harrop
    .NET 4 includes new concurrent data structures. The Bag and Dictionary collections have obvious applications but I cannot see any use for the Queue and Stack data structures. What are people using these for? Also, I've noticed that the design based upon linked lists incurs a lot of allocation and that destroys scalability. This is surprising given that the sole purpose of these collections is multicore programming. Is this an inherent limitation or are they just badly implemented?

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  • What's the Erlang/Haskell job market like in the U.S.?

    - by Krystof
    I've heard that Telecoms are the big source of Erlang jobs but I'm not sure how much of a market there is. How likely is it that someone could find a job in Erlang/Haskell if they decided to learn it? In my case I have a lot of programming experience in Java but am tired of Java and want to try something different.

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  • Which IDE / code editor was the first to introduce a code completion feature?

    - by Uri
    I am trying to identify the point in time where code completion (autocomplete/intellisense/whatever) was first introduced in IDEs and would appreciate any pointers. By code completion here I mean a feature within the editor that offers methods or suggestions based on the code that was already typed, and I am interested in programming language related completions (not word processor style completion).

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  • C++ Libraries similar to C#?

    - by cam
    I'm coming to C++ from a .Net background. Knowing how to use the Standard C++ Libraries, and all the syntax, I've never ventured further. Now I'm looking learning a bit more, such as what libraries are commonly used? I want to start getting into Threading but have no idea to start. Is there a library (similar to how .net has System.Threading) out there that will make it a bit easier? I'm specifically looking to do Linux based network programming.

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  • effective functonal sort

    - by sreservoir
    I'm programming a function for a ti-nspire, so I can't use the builtins from inside a function. what is the most generally efficient algorithm for sorting a list of numbers without modifying the list itself? (recursion and list-splitting are fair game, as is general use of math.)

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  • Switching to Java from C++: What are the key points?

    - by Roddy
    I'm an experienced developer, but most of my OO programming experience has been with C++ (and a little Delphi). I'm considering doing some Android work, hence Java. Coming from the C++ background, what areas of Java are most likely to surprise/annoy/delight me? I felt sure this would already have been asked, but my searches haven't turned up a similar question. CW, of course.

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  • linux, LD_PRELOAD error

    - by user286215
    Hello, i am new in programming under linux and trying to get working this code: http://scaryreasoner.wordpress.com/2007/11/17/using-ld_preload-libraries-and-glibc-backtrace-function-for-debugging/ but getting error: "ERROR: ld.so: object 'libwrap_ioctl.so' from LD_PRELOAD cannot be preloaded: ignored." what can cause it? system - Archlinux, kernel 2.6.32 thank you for answers upd1: "Check with ldd libwrap_ioctl.so if some dependency of this library is missing." checked. no, i have all needed libraries

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  • Are there any lightweight analogues to CORBA/RPC for embedded programs?

    - by Mtr
    I am writing embedded applications for different hardware (avr, arm7, tms55xx…) and different rtoses (freeRTOS, rtx, dsp/bios). And every second of them needs to communicate with PC or another digital device. Sometimes interactions logic is very advanced. So I'm interesting in common methodology (like state-machine programming style), protocol specification or library, that could simplify developing such things.

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  • How i can i use the value of a variable from one class in another in objective c?

    - by user337174
    Hi i am fairly new to objective c and have been doing some iphone programming. Is it possible to look up the value of a variable in a different class? Basically what i am doing is running a function that exists in my app delegate from a view controller, but the app delegate needs to use a variable stored in the view controller from which the app delegate function was called. Make sense??? Any help would be grateful. James

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  • Intercommunication between Java Chat Servers

    - by Pravingate
    I have a application in which I am using socket programming , having this(image) scenario. Where number of clients will try to connect Broadcast server. Now here I am managing load through LVS(Load balancer). so as a example shown in image, suppose 200 clients will wish to login for broadcast they will be distributed as 100 users on server 1 and another 100 users on server 2.clients will get connected to servers using TCP connection. Now I am maintaining user information on server side in arraylist which will be stored in heap memory,Now the problem is if client wish to broadcast to all logged in users, but that particular client is logged in server 1. and so client will not be able to broadcast another 100 users from server 2. Because both ther servers are unaware about each others state. please suggest to solve this scenario by whatever means you want.

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  • What's the best CDN for image hosting on a high-volume web site?

    - by Mike
    Akamai is way too expensive. Photobucket is not reliable. Is there a great content delivery network that I can use just to host my images? We deploy images programmatically via FTP, so there is some programming behind the scenes. Having some sort of reporting about the reliability of the service, whether it's raw logs files or a web-based admin screen that shows http errors, would also be important. Has anyone worked with edgecast?

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  • PRINTER SET UP IN EXCEL VISUAL BASIC

    - by Gina
    I am trying to assign a cell in excel for the user to type the printer name where they want the print out to go and then use that value in the Application.ActivePrinter = (use the cell value) Even though I have done the programming assigning a name to the cell and using it in a variable it is giving me an error. I have set my variable as string, text, object and variant already and it's not working. Do you know what code should I use to be able to do this?

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  • Revision, Quadratic Time

    - by stan
    I am not sure if you can post revision programming questions in here but i am stuck with some algorithms revision If an algorithm is quadratic it takes time proportional to the number of n^2 ? So if the slides say its almost 1/2 the square of n records is this the same as saying (n^2 * 0.5) Thanks

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  • a good resource or book for architecting object-oriented software

    - by Ygam
    I have looked at a couple of books and all I have looked at were just discussing the technicalities of OOP. By technicalities I mean, here's a concept, here's some code, now get working. I have yet to see a book that discusses the architectural process, what are the ways of doing this, why doing this is bad, how to actually incorporate design patterns in a real-world project, etc. Can you recommend a good resource or book? I am mainly programming with PHP but a language-agnostic book/resource would do :)

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  • Understanding Scope on Scala's For Loops (For Comprehension)

    - by T. Stone
    In Chapter 3 of Programming Scala, the author gives two examples of for loops / for comprehensions, but switches between using ()'s and {}'s. Why is this the case, as these inherently look like they're doing the same thing? Is there a reason breed <- dogBreeds is on the 2nd line in example #2? // #1 ()'s for (breed <- dogBreeds if breed.contains("Terrier"); if !breed.startsWith("Yorkshire") ) println(breed) // #2 {}'s for { breed <- dogBreeds upcasedBreed = breed.toUpperCase() } println(upcasedBreed)

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  • Why so many ASP.NET programmers play with Ruby on Rails after working hours?

    - by ITmeze
    I saw that on so many blogs. Lots of the people that were dealing with ASP.NET tend to play with Ruby on Rails after working hours. And It is just a matter of last one or two years. Why is it like that? Is it because when ASP.NET MVC showed up people become more open-minded - having joy with programming again they realize that some other folks had that many years ago, and they do not want to miss what they currently have?

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  • What's the right Java generic for a collection of elements with unique addressable indices?

    - by Rocreex
    I'm on my way to programming a database application and in our course we are told to implement a library of elements using one of the Java Collections. Each of the elements has a unique ID with which it's supposed to be addressed. Now I am wondering how this can be done. I though about using a ListArray but this won't work because the only way of addressing List elements is through the index which you can't control. Do you have some advice for me?

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  • Win32 WndProc Name: why can't I change its name ?

    - by asksuperuser
    I have compiled a simple win32 app successfully with bc++ (2 lines excerpt only): LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM); wincl.lpfnWndProc = WindowProcedure; Why can't I rename WindowProcedure and compile this: LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM); wincl.lpfnWndProc = WndProc; as error message gives: Turbo Incremental Link 5.00 Copyright (c) 1997, 2000 Borland Error: Unresolved external 'stdcall WndProc(HWND *, unsigned int, unsigned int, long)' referenced from C:\PROGRAMMING\SALLY\WIN32TUTORIAL\MAIN.OBJ

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  • Data Structure Used For SMS Messages In Android

    - by Greenhouse Gases
    Does anybody know what data structures are used to the store messages in an SMS client app, and whether there is an existing API for this. I was perhaps looking at implementing a link list for the purpose but if the work has already been done in an API then perhaps it would be unnecessary to commit time to the task that could be spent programming other parts. Many thanks

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