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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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• 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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• C++ priority queue structure userd ?

  - by John Retallack

  While searching for some functions in C++ STL documentation I read that push and pop for priority queues needs constant time. "Constant (in the priority_queue). Although notice that push_heap operates in logarithmic time." My question is what kind of data structure is used to mantain a priority queue with O(1) for push and pop ?

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• how to check some assembly is present in client and register that if not.

  - by Jimmy

  hi there, what i wana know is that how can i use assembly that is register in GAC in my C# application. Detail: What i wana achieved is that 1) Check ABC assembly that is register in my client machine or not from my windows application 2) If not then register that assemble in GAC of client from my windows application 3) And use this assembly and perform some functions Remember that that ABC assemble is my assembly having some of my function.

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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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• 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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• 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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• mySQL query: How to insert with UNION?

  - by Industrial

  Hi everybody, I am kind of new to mySQL:s union functions, at least when doing inserts with them. I have gotten the following to work based upon a example found on the net: INSERT INTO tableOne(a, b) SELECT a, $var FROM tableOne WHERE b = $var2 UNION ALL SELECT $var,$var Ok, nothing strange about that. But what happens when I want to insert a third value into the database that has nothing to do with the logic of the Select being done? Like : INSERT INTO tableOne(a, b, c ) How could that be done?

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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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• What is the best way to write class template in C?

  - by Taras

  I need to write AVL-tree with generic type in C. The best way I know is to use [ void* ] and to write some functions for creating, copying, assignment and destruction. Please, tell me some better way.

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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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• 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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• Accessing PCI Device from user space programs

  - by crissangel

  I have a device which would be interface with my processor through pcie. I have written driver for it using the existing pci file operations. Now my problem is how do I access it from user space programs? PCI File operations do not have IOCTL support and hence I cant make an ioctl call unlike other char devices. I cannot use pci_config_read_byte etc. functions as they are meant for kernel space(included in linux/pci.h).

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• Any benefits of using Windows Communication Foundation/ Web Services vs. a simple .aspx page for s

  - by Clay Nichols

  I'm working on a VB6 app that will do some very simple communication with a web server (passing value and getting back an anwer. Low bandwith and infrequent use). Someone suggested using WCF or Web Services. I'm wondering what the advantages are vs. just posting to an ASPX page like: Myserver.com/Functions.ASP?FunctionName=GetValue?UserName=BubbGump and returning some simple, easy to parse text, like one value per line.

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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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• What can you do in C without "std" includes? Are they part of "C," or just libraries?

  - by Chris Cooper

  I apologize if this is a subjective or repeated question. It's sort of awkward to search for, so I wasn't sure what terms to include. What I'd like to know is what the basic foundation tools/functions are in C when you don't include standard libraries like stdio and stdlib. What could I do if there's no printf(), fopen(), etc? Also, are those libraries technically part of the "C" language, or are they just very useful and effectively essential libraries?

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• Replace an Array with an Array

  - by Dane Man

  I have and NSMutableArray and I want to replace it with another, but if I try to do it like this... firstArray = secondArray; ...then it seems to erase the entire firstArray and I get this error message.. Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[NSCFArray objectAtIndex:]: index (0) beyond bounds (0)' ...and the bounds should be (6) not (0). Is there a correct way to replace the array? PS: I already checked the secondArray and it functions fine.

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• Can I concatenate multiple MySQL rows into one field?

  - by Dean

  Using MySQL, I can do something like select hobbies from peoples_hobbies where person_id = 5; and get: shopping fishing coding but instead I just want 1 row, 1 col: shopping, fishing, coding The reason is that I'm selecting multiple values from multiple tables, and after all the joins I've got a lot more rows than I'd like. I've looked for a function on MySQL Doc and it doesn't look like the CONCAT or CONCAT_WS functions accept result sets, so does anyone here know how to do this?

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• Howto obtain Per-Interface statistics on windows

  - by Canacourse

  I am trying to find the most used Network card on windows 200 or XP. I planned to obtain the number of packets sent trough each NIC to determine the main NIC. I thought IP Helper might give me this information but also it looks like the functions in IP helper only give stats for all interfaces. I know this can be done. Any ideas? Many Thanks...

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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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• 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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• How can I control standard out of C++ routines wrapped with SWIG and exposed in Python?

  - by cmdev

  Is it possible to control the standard streams of C++ code in python? So the code is wrapped with SWIG and then exposed to python where I call its functions. I am getting all kinds of unwanted messages coming from C++ code and I want to suppress them either by not using the stream or by redirecting it to a bit bucket.

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• How to access CRM 4.0 settings programmatically?

  - by Shaamaan

  Some of the plugins I wrote (re)calculate various prices, and I used Math.Round to keep results accurate with the default 2 digit setting in CRM. But I figured... what if a user decides to set his CRM to use a different precision? So, I need to access the CRM settings programmatically, so that my functions can work with whatever setting the user chooses. How would I go about accessing the General (and, possibly, other) CRM settings from my code?

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• Suggestions/pointers for Post/Get to an .ASP (or .ASPX) page from a desktop app

  - by Clay Nichols

  I'm planning to have a desktop app interact with some .ASP or .ASPX pages on a server. I've only done a little bit with .asp pages and I'm thinking I'd just Post or Get a URL with some variables: MySite.com/Functions.asp?FunctionName=?Paramater1=somevalue?Parameter2=... I'm wondering if there is any better way to go about this? Am I missing something? Is there perhaps a better way to go about this?

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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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