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• deep or shallow copying?

  - by Dervin Thunk

  Dear all. I was wondering if there are examples of situations where you would purposefully pass an argument by value (deep copy) in C. For instance, passing a char to a function is usually cheaper in space than passing a char* (if there's no need to share the value), since char is 1 byte and pointers are, well, whatever they are in the architecture (4 in my 32 bit machine). ?(When) do you want to pass (big) deep copies to functions? if so, why?

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• String Compression using Lempel-Ziv

  - by roybot

  Im looking for a way of compressing a given string using the Lempel-Ziv Algorithm. Preferably there would only be a set of two functions, encoder and decoder. The encoder takes the string and returns an integer. The decoder takes the integer and returns the original string. Time complexity is not important. How would you implement this?

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• Kohana 3 - Get URLs

  - by booze2go

  Hi Guys, could you help me with following questions. How do i get the: absolute/relative current url http://www.example.com/subdir/controller/action /subdir/controller/action absolute/relative application url http://www.example.com/subdir/ /subdir/ I could of course use native php to get it but i think i should rather use ko3 functions. Any idea how that works? Thanks in advance!

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• executing emacs -batch on MS-DOS

  - by Stephen

  Hi, does anyone know how to run something like the following on a Windows machine with the DOS command line? emacs -batch -l functions.el --eval '(run-function "argument")' Thanks!

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• File Operations in Android NDK

  - by EnderX

  I am using the Android NDK to make an application primarily in C for performance reasons, but it appears that file operations such as fopen do not work correctly in Android. Whenever I try to use these functions, the application crashes. How do I create/write to a file with the Android NDK?

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• How to call a EJB session bean from PHP?

  - by 1s2a3n4j5e6e7v

  Is there any way to call an EJB session bean from PHP? Are there any specific functions to do that?

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• how wordpress can un-slug a title

  - by Mac Taylor

  i still , don't understand , how wordpress can understand what is this url refer to : www.mysite.com/about-me/ they are using no identifier if they using slug functions so how they can retain story information or in other word , how they change back the slugged title to select from database

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• How to execute a program from file descriptor?

  - by stribika

  I need to execute a file when I only know the descriptor. It is also possible that there are no links to the file so finding out the name somehow is not an option. All the execve(), execvp(), etc functions take a file name. dlopen() also takes a name. Ugly solutions (like reading the file and calling some function pointer) are OK.

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• wordpress shortcode for wp_list_categories()

  - by dann

  I'm tyring to list all the catagories in a page. I tried doing it but i'm not that pro. and i kept getting error on functions.php. thanks for your help

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• Set global position for a QLabel

  - by alfredozn

  Hi I'm trying to display a QLabel (without parent) at a fixed position using PyQt. The QLabel functions as a graphic that appears only for a moment, it's appears in the middle of the screen by default but I can't find how to move its position. Any suggestion??

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• 64-bit integers in Cython

  - by Homayoon

  I'm trying to interface a C++ library (pHash) with Python using Cython, but I have trouble with some of the types. The library functions use "unsigned long long" and I can't find a way to declare variables and parameters with this type. I searched for a list of the types that I can use with cdef but I found nothing. Can anyone point me to such a list (if it exists) or otherwise suggest a way to use 64 bit types in Cython? Thanks.

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• Help a newbie with a PHP Function

  - by danit

  I want to use this function: http://www.frankmacdonald.co.uk/php/post-to-wordpress-with-php.html Its used to post to Wordpress using XMLRPC, can anyone give me the basics for using this function and maybe a brief over view? I want to learn how functions work and how to use them.

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• Is a Multi-DAL Approach the way to go here?

  - by Krisc

  Working on the data access / model layer in this little MVC2 project and trying to think things out to future projects. I have a database with some basic tables and I have classes in the model layer that represent them. I obviously need something to connect the two. The easiest is to provide some sort of 'provider' that can run operations on the database and return objects. But this is for a website that would potentially be used "a lot" (I know, very general) so I want to cache results from the data layer and keep the cache updated as new data is generated. This question deals with how best to approach this problem of dual DALS. One that returns cached data when possible and goes to the data layer when there is a cache miss. But more importantly, how to integrate the core provider (thing that goes into database) with the caching layer so that it too can rely on cached objects rather than creating new ones. Right now I have the following interfaces: IDataProvider is used to reach the database. It doesn't concern itself with the meaning of the objects it produces, but simply the way to produce them. interface IDataProvider{ // Select, Update, Create, et cetera access IEnumerable<Entry> GetEntries(); Entry GetEntryById(int id); } IDataManager is a layer that sits on top of the IDataProvider layer and manages the cache interface IDataManager : IDataProvider{ void ClearCache(); } Note that in practice the IDataManager implementation will have useful helper functions to add objects to their related cache stores. (In the future I may define other functions on the interface) I guess what I am looking for is the best way to approach a loop back from the IDataProvider implementations so that they can access the cache. Or a different approach entirely may be in order? I am not very interested in 3rd party products at the moment as I am interested in the design of these things much more than this specific implementation. Edit: I realize the title may be a bit misleading. I apologize for that... not sure what to call this question.

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• C#: Can you detect whether or not the current execution context is within `lock (this)`?

  - by John Gietzen

  If I have an object that I would like to force to be accessed from within a lock, like so: var obj = new MyObject(); lock (obj) { obj.AddOne(); obj.RemoveOne(); } Is it possible, from within the AddOne and RemoveOne functions to detect whether the current execution context is within a lock? Something like: Monitor.AreWeCurrentlyEnteredInto(this)

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• looking for a javascript engine

  - by c0f33.alex

  i'm looking for a js engine to that I can (easily) expose C/C++ functions, classes etc. The API should allow changing exposed values from within C++ (by storing some kind of pointer or reference to an object inside js or so...). I've considered using google's v8 but I'm new to it and don't know whether it will satisfy my requirements. Can someone tell me whether I should stick to v8 or try something else?

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• Change Target of Edge in BGL

  - by Sunny

  If my BGL graph contain edge from node x to node y, and I want to change the target of this edge, so that now it's pointing from x to z, how it can be done? Are there any functions in BGL for that?

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• Automate OCX wrapper from C++ to C++ using visual studio

  - by zitronic

  I am developing an OCX with some DISP_FUNCTION_ID defined. How could I automatically generate a wrapper for it to be used in an MFC C++ Dialog so it can be autoregenerated when I add functions to my OCX? Regards

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• Why isn't the Type class in the System.Reflection namespace?

  - by Arc

  Everything about Type is reflective in nature. Is it because Type is used more often than the rest of the classes in System.Reflection? Or because it functions more like a system class than a reflection class? In short, I've always wondered what the motivation behind the location of System.Type was.

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• Using Mercurial (HG) programmatically from C#/.NET

  - by Maxim Z.

  What's the best way to approach using Mercurial (HG) programmatically from C#? I will be creating HG repositories, committing, and using other default HG functions. Are there are open-source .NET libraries that would allow me to do this? Thanks in advance.

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• Cross platform millisecond timer lasting more than 49 days?

  - by Cetra

  Hey guys, I'm going to be developing a small dedicated server in C/C++ that will require uptime of forever. I've been looking into some time functions as millisecond timing is required for calculations. I have 2 problems that I'm facing: Using a 32bit integer to store the number of milliseconds since the operation began will wrap around at about the 49 days mark resetting to zero. There doesn't seem to be any standard system calls for getting elapsed milliseconds that are platform independant What should I do to resolve both these issues?

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• yes another question about Interfaces?

  - by sam

  Hi Guys, I started commercial programming lately, I am used to functions, then now I always questions about interfaces.. Do you provide me with some links and book names, that can explain deeply why using interfaces? is interfaces required for small projects?? I am using C#. thanks

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• Converting a selected date from a datetimepicker into my query, along with subtracting a day

  - by MyHeadHurts

  I am currently using this to get yesterdays date, however i need to do something similar where the user will use a javascript datetimepicker in my asp.net page and i will then use the date they select instead of just yesterdays date Declare @dayselection int set @dayselection = CONVERT(int,DateAdd(year, @YearToGet - Year(getdate() + 1), DateAdd(day, DateDiff(day, 1, @dayToGet), 1) , DateAdd(month, DateDiff(month, 0, @monthToGet), 0) ) but it isnt working i keep getting syntax errors I want the day and year functions to stay the same i just need help with the month part. I need to convert the selected date into an int

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• Are there any LIDIL documentation?

  - by Eskat0n

  As a part of my univercity work I have to write a program in LIDIL and describe its operators and functions but I can't find any documentation on this language. Naturally I've tried to google but nothing found on the first 40 pages of search results so I gave up. SO is my last hope. Any trace of info about LIDIL is fine for me.

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• Appending javascript code piece to end of the body tag

  - by uzay95

  I am looking for a way to insert javascript code block to end of ASP.NET page. Page.ClientScript.RegisterClientScriptBlock(typeof(Page), "showVideo", sScript, true); is appending to body but js codes are always requesting some js files didn't load or some functions are below of the script. How can i append scripts that i generated dynamically to the bottom of body? Thanks for your help.

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• What are the elements of a team development suite?

  - by mhempey

  For small-to-large teams developing software together, what tools are used to form a comprehensive team development framework? Specifically, I'm looking for a comprehensive list of all the individual functions involved (e.g. source control, bug management, testing tools, project management), not specific product recommendations. I'm also not restricting the list to a particular methodology (e.g. Scrum).

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