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  • Good programming website like Stack Overflow?

    - by hhafez
    What other good collaborative programming/software development/engineering websites do you know of? I'm not looking for language or platform specific websites. Nor am I looking for something similar to the format of Stack Overflow. My main criteria is that the community is knowledgeable, helpful active friendly I know the question is open ended/subjective but I'd like to know as many places where I can get the help of my peers. The accepted answer will contain links to your recommended sites have a short description be concise be highly voted by your peers

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  • Another C datatypes question

    - by b-gen-jack-o-neill
    Hello. Well, I completely get the most basic datatypes of C, like short, int, long, float, to be exact, all numerical types.These types are needed to be known perform right operations with right numbers. For example to use FPU to add two float numbers. So the compiler must know what the type is. But, when it comes to characters I am little bit off. I know that basic C datatype char is there for ASCII characters coding. But what I don´t know is, why you even need another datatype for characters. Why could not you just use 1 byte integer value to store ASCII character. If you call printf, you apecify the datatype in the call, so you could say to printf that the integer represents ASCII character. I dont know how cout resolves datatype, but I guess you could just specify it somehow. Another thing is, when you want to use Unicode, you must use datatype wchar. But, what if I would like to use some another, for example ISO, or Windows coding instead of UTF? Becouse wchar codes characters as UTF-16 or UTF-32 (I read its compiler specific). And, what if I would want to use for example some imaginary new 8 byte text coding? What datatype should I use for it? I am actually pretty confused of this, becouse I always expected that if I want to use UTF-32 instead of ASCII, I just tell compiler "get UTF-32 value of the character I typed and save it into 4 char field." I thought that text coding is to be dealt with by the end, print function for example. That I just need to specify the coding for the compiler to use, since Windows doesent use ASCII in win32 apps, I guess C compiler must convert the char I typed to ASCII from whatever the type is that windows sends to the C editor. And the last thing is, what if I want to use for example 25 Byte integer for some high math operations? C has no specify-yourself datatype. Yes, I know that this would be difficult since all the math operations would need to be changed, becouse CPU can not add 25 Bytes numbers together. But is there a way to do it? Or is there some math library for it? What if I want to compute Pi to 1000000000000000 digits? :) I know my question is pretty long, but I just wanted to explain my thoughts the best I can in English, since its not my native language it is difficult. And I believe there is simple answer to my question(s), something I missed that explains everything. I read lot about text coding, C tutorials, but nothing about his. Thank you for your time.

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  • Why has anybody ever used COBOL?

    - by sarzl
    I know: You and me hate COBOL. I took a look at a lot of code examples and it didn't take me long to know why everybody tries to avoid it. So I really have no idea: Why was COBOL ever used? I mean: Hey - there was Fortran before it, and Fortran looks like a jesus-language compared to COBOL. This isn't argumentative but historical as I'm young and didn't even know about COBOL before 4 months.

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  • Design decisions

    - by Drew Gain
    I have been asked to choose between Web Forms and MVC for a minor internal company project. I do not know MVC. How much of MVC do i have to know to be able to make a decision? Note: 1. I have read up on MVC to an extent that i know the high level design choices that I will have to make, however as a developer, I do not feel comfortable unless i code in it...

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  • JW FLV Player Javascript event

    - by Webber
    When a user triggers a Javascript action, I want the JW FLV to seek back 5 seconds from the current location. I know how to send events using player.sendEvent('SEEK',seconds). But I dont know how many seconds to pass as JS does not know the current location. Can someone please help? http://developer.longtailvideo.com/trac/wiki/FlashEvents#Viewevents.

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  • Why isn't Hadoop implemented using MPI?

    - by artif
    Correct me if I'm wrong, but my understanding is that Hadoop does not use MPI for communication between different nodes. What are the technical reasons for this? I could hazard a few guesses, but I do not know enough of how MPI is implemented "under the hood" to know whether or not I'm right. Come to think of it, I'm not entirely familiar with Hadoop's internals either. I understand the framework at a conceptual level (map/combine/shuffle/reduce and how that works at a high level) but I don't know the nitty gritty implementation details. I've always assumed Hadoop was transmitting serialized data structures (perhaps GPBs) over a TCP connection, eg during the shuffle phase. Let me know if that's not true.

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  • Get Object ID of UI element from code.

    - by andoriyu.mp
    I'm trying link 40 buttons to one event handler method and then do the processing work from one method instead of 40. I know how to link it but once I get there I don't know how to distinguish what button was pressed. Does anyone know how to reference the button object sender id or is there another way to solve this problem? Any help would be greatly appreciated.

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  • Using MPI under VC++ MFC project?

    - by Mike
    Does any body know how can I use MS_MPI in my VC++ MFC project? I already have a big MFC project and I only want to use parallel processing in a part of it with MPI. (I know how to use MPI in a separate code, but I don't know how to integrate it with my VC++ MFC project)

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  • How to iterate all query paths within an image header namespace in WIC?

    - by muruge
    Hello All, I am using Windows Imaging Component to read/write image metadata in my WPF application. I would like to know if there is an efficient way to know if any paths exist within a namespace. For instance I would like to know if any paths within IPTC namespace exist and if not I want to delete the namespace from the image header. Any pointers would be greatly appreciated. Thanks, Murugesh.

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  • Kernel api's or using api's in the kernel

    - by user513647
    Hello everybody I'd like to know if and how I can access api calls inside the kernel. I need them to preform several integrity checks on a program of mine running in user mode. But I don't know how I can access the api's and funcions required to do so. Does anybody know how to obtain the process id of my user mode proces? and how to access all it's memory to preform the check? Thanks in advance ps: My I'm on a windows xp machine

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  • Are all of the default scripts loaded by Magento really needed?

    - by pxl
    Here's a listing of all the scripts loaded by Magento by default: ../js/prototype/prototype.js //prototype library ../js/prototype/validation.js //don't know what this does ../js/scriptaculous/builder.js //don't know what this does ../js/scriptaculous/effects.js //base scriptaculous effects library? ../js/scriptaculous/dragdrop.js //component of scriptaculous effects ../js/scriptaculous/controls.js //not sure? ../js/scriptaculous/slider.js //more scriptaculous effects ../js/varien/js.js //don't know what this is ../js/varien/form.js //form validation scripts? ../js/varien/menu.js //menu/drop down menu scripts ../js/mage/translate.js //don't know what this does ../js/mage/cookies.js //don't know what this does these scripts total 316.8K of javascript... all in various states of being minified (for example, prototype.js isn't minified). So my first question: 1) Aside from prototype.js, are all of the others really that needed? and 2) What is the "correct" way to remove these scripts? Layout updates? Or hardcoded in templates? I want to make the loading of my magento site as light weight as possible. thanks!

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  • Insert data into SQL server with best performance

    - by Incognito
    I have an application which intensively uses DB (SQL Server). As it must have high performance I would like to know the fastest way to insert record into DB.Fastest from the standpoint of execution time. What should I use ? As I know the fastest way is to create stored procedure and to call it from code (ADO.NET). Please let me know is there any better way or may be there are is some other practices to increase performance.

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