Search Results

Search found 22104 results on 885 pages for 'programming language'.

Page 642/885 | < Previous Page | 638 639 640 641 642 643 644 645 646 647 648 649  | Next Page >

• Who is a web developer? What does he do

  - by Sinan

  I am wrting an article on web developers. It seems to me there are some problems on the definition of "what is a web developer". It looks like a web developer title is a bit misunderstood. And people with this title doesnt get the recognition they deserve. While most people at IT have some well defined job defitinitions. A web developer requires multiple skills. Like knowing a programming language, web security, etc. I was wondering what do you think about this issue? What skills does a web developer need? Where does his responsibilities start and end? etc.

  Read the article

• Why is thread local storage so slow?

  - by dsimcha

  I'm working on a custom mark-release style memory allocator for the D programming language that works by allocating from thread-local regions. It seems that the thread local storage bottleneck is causing a huge (~50%) slowdown in allocating memory from these regions compared to an otherwise identical single threaded version of the code, even after designing my code to have only one TLS lookup per allocation/deallocation. This is based on allocating/freeing memory a large number of times in a loop, and I'm trying to figure out if it's an artifact of my benchmarking method. My understanding is that thread local storage should basically just involve accessing something through an extra layer of indirection, similar to accessing a variable via a pointer. Is this incorrect? How much overhead does thread-local storage typically have? Note: Although I mention D, I'm also interested in general answers that aren't specific to D, since D's implementation of thread-local storage will likely improve if it is slower than the best implementations.

  Read the article

• Algorithm for digit summing?

  - by Joe

  I'm searching for an algorithm for Digit summing. Let me outline the basic principle: Say you have a number: 18268. 1 + 8 + 2 + 6 + 8 = 25 2 + 5 = 7 And 7 is our final number. It's basically adding each number of the whole number until we get down to a single (also known as a 'core') digit. It's often used by numerologists. I'm searching for an algorithm (doesn't have to be language in-specific) for this. I have searched Google for the last hour with terms such as digit sum algorithm and whatnot but got no suitable results. Any help would be great, thanks.

  Read the article

• tetris rotation

  - by Samuel

  Hey, For university we're supposed to write a game (the language is modula2 little chance you know it). Each tetromino is defined through a central piece and 3 relative pieces, Now when it comes to rotation i just rotate the relative blocks (linear algebra). What i am asking myself is how to handle the rotations a user does when the piece has already "landed" because than the user has a little time left to move his pieve quickly into the desired position but in tetris versions all over the web you can "rotate over" other pieces, but i dont seem to get it with my rotation. Over what piece do i need to rotate? are there guidelines? Thanks

  Read the article

• WCF Integration Facility and Self-Hosted Services

  - by IanT8

  I'm self-hosting several services where I do this to register the service: host = new ServiceHost(typeof(MyService)); host.Open(); Behind the scenes, wcf instantiates my service via the default constructor. Is it possble to use the WCF Integration Facility of Castle Windsor to get WCF to call on Windsor to create the service when I am self-hosting? The example seems shows IIS hosted services where the 1st line of the MyService.svc file looks like: <%@ServiceHost language=c# Debug="true" Service="Microsoft.ServiceModel.Samples.CalculatorService" Factory=WindsorServiceHostFactory%> where presumably a factory is used by wcf to instantiate the service instance.

  Read the article

• What does this xkcd code do?

  - by cobbal

  On the xkcd site today, the following appeared as a joke in a <script language="scheme"> tag so what does the following code do / represent? (define (eval exp env) (cond ((self-evaluating? exp) exp) ((variable? exp) (lookup-variable-value exp env)) ((quoted? exp) (text-of-quotation exp)) ((assignment? exp) (eval-assignment exp env)) ((definition? exp) (eval-definition exp env)) ((if? exp) (eval-if exp env)) ((lambda? exp) (make-procedure (lambda-parameters exp) (lambda-body exp) env)) ((begin? exp) (eval-sequence (begin-actions exp) env)) ((cond? exp) (eval (cond->if exp) env)) ((application? exp) (apply (eval (operator exp) env) (list-of-values (operands exp) env))) (else (error "Common Lisp or Netscape Navigator 4.0+ Required" exp))))

  Read the article

• Handling User Authentication in C#.NET?

  - by Daniel

  I am new to .NET, and don't have much experience in programming. What is the standard way of handling user authentication in .NET in the following situation? 1.In Process A, User inputs ID/Password 2.Process A sends the ID/Password to Process B over a nonsecure public channel. 3.Process B authenticates the user with the recieved ID/Password what are some of the standard cryptographic algorithms I can use in above model? The users(customers that bought my company's software) will be running the software(Process A) locally in their computer(connected to internet). I need to authenticate the users so that only registered users can run the program. Thank You!

  Read the article

• Load XML to DataFrame in R

  - by Rohit Kandhal

  I am new to R programming and trying to load a simple XML in RStudio. I tried using XMLToDataFrame but got this error XML content does not seem to be XML: 'temp.xml' XML Schema <root> <row Id="1" UserId="1" Name="Rohit" Date="2009-06-29T10:28:58.013" /> <row Id="2" UserId="3" Name="Rohit" Date="2009-06-29T10:28:58.030" /> </root> Please provide me some direction on which function I should use here.

  Read the article

• How to use Speech 2 Text in Microsoft Surface

  - by Roflcoptr

  I'd like to use some speech 2 text in my microsoft surface application. I saw that it is possible, but I don't really know where to start. Is there any framework/library available, or a code snippet, or a tutorial?? I don't even know exactly what i should google for ;) ===EDIT=== I read that it is necessary to use a grammar to recognize words. So if I want to proceed free text, is there a predefined grammar for the english language? Or is it a better choice to don't use speech2text but just audio files instead?

  Read the article

• Help a Python newbie with a Django model inheritance problem

  - by Joshmaker

  I'm working on my first real Django project after years of PHP programming, and I am running into a problem with my models. First, I noticed that I was copying and pasting code between the models, and being a diligent OO programmer I decided to make a parent class that the other models could inherit from: class Common(model.Model): self.name = models.CharField(max_length=255) date_created = models.DateTimeField(auto_now_add=True) date_modified = models.DateTimeField(auto_now=True) def __unicode__(self): return self.name class Meta: abstract=True So far so good. Now all my other models extend "Common" and have names and dates like I want. However, I have a class for "Categories" were the name has to be unique. I assume there should be a relatively simple way for me to access the name attribute from Common and make it unique. However, the different methods I have tried to use have all failed. For example: class Category(Common): def __init__(self, *args, **kwargs): self.name.unique=True Spits up the error "Caught an exception while rendering: 'Category' object has no attribute 'name' Can someone point me in the right direction?

  Read the article

• Spring security annotations with EL -- requires debug information compiled in?

  - by HDave

  I am considering using Spring Security annotations for my application, with the EL (expression language) feature. For example: @PreAuthorize("hasPermission(#contact, 'admin')") public void deletePermission(Contact contact, Sid recipient, Permission permission); I need the EL capability because I have built my own ACL implementation. However, to use this capability with the "#contact" type arguments, the Spring documentation says this: You can access any of the method arguments by name as expression variables, provided your code has debug information compiled in. This begs two questions: It is acceptable to have a production application commercially distributed with debug info in it? If not, is there any way around this? Thanks for any guidance on this!

  Read the article

• Education After High School

  - by Travis O.

  I know this isn't specifically a programming question, but please bear with me. I'm currently a high-school junior. I have no idea what to look for in a college: what degree, what school, etc. I've searched all around the internet but can't really find anything that relevant. I know I need a degree, but I don't know which or what to specialize in. My grades are good and I am in the top 15 percent of my class. I scored about a 1800 on the SAT and have not yet taken the ACT. I'd like to go to a 4 year school that doesn't cost too much. What do I need to be looking for and what is important to colleges accepting CS students and the business after college?

  Read the article

• Young people using Emacs?

  - by bigmonachus

  I am a college student that has fallen in love with Emacs. I have used IDEs in the past, and although features like Intellisense made the switch to Emacs very hard, I now think that Emacs is much more powerful, and features like Intellisense can be pretty closely matched by various modes depending on language (and I am not referring to M-/). I am happily writing Elisp code for everything that I need that isn't provided by modes or by Emacs itself and I love the way that it adapts and molds to my needs. However, I do think that its main disadvantage is the fact that it has a pretty steep learning curve and that most new programmers will not even begin to learn it out of many common misconceptions. So, I want to know the opinions of young people (or any person who didn't start using Emacs before there were IDEs) that are Emacs users. Just to get some reassurance that Emacs is not dead within our Eclipse-loving generation =). (Opinions of users of any other highly extensible editor like Jedit are also welcome)

  Read the article

• CSS file pathing problem

  - by Alan Harris-Reid

  Hi there, When designing a HTML template in my favorite editor (TextPad at the moment) I can view my code in a browser by pressing F11 or the appropriate toolbar button. I have my common css rules in a separate file so my HTML contains the code: <link rel="stylesheet" href="commoncss.css" type="text/css"> This works when the .css file is in the same folder as the .html file, or if I fully path the .css file in the href property, eg. ///c:/mycssfolder/commoncss.css However, in a 'live' situation I want the .css file to reside in a common folder which is accessible from a number of .html files (eg. href='css/commoncss.css', where the css folder is configured at web-server level). How can I achieve this design vs. live dilemma without copying css file to all .html folders (and all the maintenance headaches that comes with it)? I am using Python 3.1 with Jinja2, but I guess this problem is applicable across any language and template-engine. Any help would be appreciated. Alan

  Read the article

• Can everything be done programmatically in WCF or are configuration files for certain features?

  - by CuriousCoder

  I have a strong preference for working in code, leverage IntelliSense and opening up all of the power of the C# language to work with WCF but I want to make sure that I'm not moving in a direction that ultimately will limit the WCF feature set I can access. My experience is so limited with WCF that I don't understand the benefits of using the configuration files, especially if you can do everything in code (?). Note: I'm using .NET 3.5. Can you do 'everything' with WCF programmatically or are configuration files required for the full WCF feature set?

  Read the article

• Including two signatures, both with a 'type t' [Standard ML]

  - by Andy Morris

  A contrived example: signature A = sig type t val x: t end signature B = sig type t val y: t end signature C = sig include A B end Obviously, this will cause complaints that type t occurs twice in C. But is there any way to express that I want the two ts to be equated, ending up with: signature C = sig type t val x: t val y: t end I tried all sorts of silly syntax like include B where type t = A.t, which unsurprisingly didn't work. Is there something I've forgotten to try? Also, I know that this would be simply answered by checking the language's syntax for anything obvious (or a lack of), but I couldn't find a complete grammar anywhere on the internet. (FWIW, the actual reason I'm trying to do this is Haskell-style monads and such, where a MonadPlus is just a mix of a Monad and an Alternative; at the moment I'm just repeating the contents of ALTERNATIVE in MONAD_PLUS, which strikes me as less than ideal.)

  Read the article

• use multiple views in an application

  - by Gaurav Arora

  Hi All, I am new to Iphone programming. So please don't mind if I ask some basic questions. :mad: I want to develop an application where the landing screen will be a login screen and after login application should display a new screen with the list of available categories. And on selecting any category a new screen should appear with the information related to the selected category. Basically I want to display different screens in the applications and my confusion is how can I make different screens with one .xib file? or should I use different .xib files for each screen. If I use different .xib files for each screen then how should I navigate to different screens. Please help in solving this confusion. Thanks in advance Gaurav

  Read the article

• What web browser engine, version, and capabilities are used to display web pages inside Visual Studio 2010?

  - by Phrogz

  My company is developing a plugin/add-on for Visual Studio 2010. When the user asks to display the help for our product, we plan on opening an HTML page (or suite of pages) within Visual Studio. I'm helping to design and implement the help system. What web engine/version is used within Visual Studio 2010? According to Wikipedia it is not Trident(!). Am I allowed to load remote JavaScript content (via a <script> element)? Am I allowed to use XHR to load remote content? Will my page be trusted and have access to the FileSystemObject? I would appreciate any resources you can give me on programming specifically to the 'web' capabilities of VisualStudio2010-as-a-browser.

  Read the article

• Function parameter types in Python

  - by Leif Andersen

  Unless I'm mistaken, creating a function in python works like this def my_func(param1, param2): /*stuff*/ However, you don't actually give the types of those parameters. Also, if I remember, python is a strongly typed language, as such, it seams like python shouldn't let you pass in a parameter of a different type then the function creator expected. However, how does python know that the user of the function is passing in the proper types? Or will the program just die if it's the wrong type, assuming the function actually uses the parameter? Or do you have to specify the type/I'm missing something? Thank you.

  Read the article

• C-array to NSData and back

  - by Thor Frølich

  I'm attempting to save a c-style array of Vertex3D structs to an NSData object and get them back when reloading the app: NSData *vert = [NSData dataWithBytes:&vertices length:(sizeof(Vertex3D) * NUM_OF_VERTICES)]; This data is then saved and attempted to be read back into my c-array thusly: vertices = malloc(sizeof(Vertex3D) * NUM_OF_VERTICES); [vert getBytes:&vertices length:(sizeof(Vertex3D) * NUM_OF_VERTICES)]; The above results in “EXC_BAD_ACCESS” followed by: malloc: * error for object 0x48423c0: pointer being freed was not allocated I'm very new to programming so there's probably some fundamental memory management principle I'm unaware of. I have verified that the loaded NSData is identical to the saved one, but it's clear that the transition from c-array to NSData (and back) is not as I intended.

  Read the article

• Using multilingual and localeurl in django

  - by Dmitry A. Erokhin

  Using dajngo-multilingual and localeurl. Small sample of my main page view: def main(request): #View for http://www.mysite.com/ name = Dog.objects.all()[0].full_name #this is a translated field return render_to_response("home.html", {"name" : name}) Entering http://www.mysite.com/ redirects me to http://www.mysite.com/ru/ and "name" variable gets russian localization. For now it's ok... But... Entering http://www.mysite.com/en/ shows me same russian loclized variable. During my experiments with debuger I've discovered: request.LANGUAGE_CODE is changing properly according to /en/ or /ru/ url suffix (thanx to localeurl) invoking multilingual.languages.set_default_language() makes "name" variable change loclization The question is: should I change language of django-multilingual to request.LANGUAGE_CODE in each of my view myself, or it must be solved automaticly and I've done something wrong?

  Read the article

• Which Dependency Injection Tool Should I Use? (2)

  - by Mendy

  The original post is: Which Dependency Injection Tool Should I Use? While the original post is good, in this days I see a lot of people using StructureMap as their Dependency Injection tool, and in the original post no one even took it seriously. In addition, this quote: If I had to choose today: I would probably go with StructureMap. It has the best support for C# 3.0 language features, and the most flexibility in initialization. Which Dependency Injection Tool Should I Use? Out of this ones: Unity Framework - Microsoft StructureMap - Jeremy Miller Castle Windsor NInject Spring Framework Autofac Managed Extensibility Framework

  Read the article

• Readline, the Input Record Separator and Ruby

  - by JustSmith

  In Ruby I'm looking to read data until I reach a delimiter or end of file. I found this is possible by redefining $/ or the $INPUT_RECORD_SEPARATOR to my delimiter. However with all the "features" in the Ruby language it seems hokey to change the value of a global to do this. Also, readline used to consume the delimiter while not it is included in what is returned. Is there any other way to "read until" while consuming the delimiter that doesn't involve getting the values char by char in a loop?

  Read the article

• How can I sandbox Python in pure Python?

  - by Blixt

  I'm developing a web game in pure Python, and want some simple scripting available to allow for more dynamic game content. Game content can be added live by privileged users. It would be nice if the scripting language could be Python. However, it can't run with access to the environment the game runs on since a malicious user could wreak havoc which would be bad. Is it possible to run sandboxed Python in pure Python? If not, are there any open source script interpreters written in pure Python that I could use? The requirements are support for variables, basic conditionals and function calls (not definitions).

  Read the article

• Comparing Clojure books

  - by Michiel Borkent

  Currently there is (afaik) one completed Clojure book available: Programming Clojure by Stuart Halloway. Two are being written and partially available at Manning: The Joy of Clojure by Fogus and Houser Clojure in Action by Amit Rathore Another one is about to be published in May: Practical Clojure (The Definitive Guide) by Luke Van der Hart Are these books more or less the same and meant as a general introduction to Clojure? Does it make sense to buy them all, or is there a risk of having three very similar books? Will there be books that go into more specialized areas of Clojure and targetted for 'intermediate' or 'advanced' Clojure programmers?

  Read the article

< Previous Page | 638 639 640 641 642 643 644 645 646 647 648 649  | Next Page >