Search Results

Search found 3184 results on 128 pages for 'beginning'.

Page 95/128 | < Previous Page | 91 92 93 94 95 96 97 98 99 100 101 102  | Next Page >

  • Differences between iPhone/iPod Simulator and Devices

    - by Allisone
    Hi, since I started iPhone/iPod Development I have come across some differences between how the simulator and how real device react. Maybe I will come across some other differences I will have to figure out as well, maybe other people haven't met these problems here (YET) and can profit from the knowledge, and maybe you know some problems/differences that you would have been happy to know about earlier before you spent several hours or days figuring out what the heck is going on. So here is what I came across. Simulator is not case sensitive, Devices are case sensitive. This means a default.png or Icon.png will work in simulator, but not on a device where they must be named Default.png and icon.png (if it's still not working read this answer) Simulator has different codecs to play audio and video If you use f.e. MPMoviePlayerController you might play certain video on the simulator while on the device it won't work (use Handbrake-presets-iPhone & iPod Touch to create playable videos for Simulator and Device). If you play audio with AudioServicesPlaySystemSound(&soundID) you might here the sound on simulator but not an a device. (use Audacity to open your soundfile, export as wav and run afconvert -f caff -d LEI16@44100 -c 1 audacity.wav output.caf in terminal) Also there is this flickering on second run problem which can be resolved with an playerViewCtrl.initialPlaybackTime = -1.0; either on the end of playing or before each beginning. Simulator is mostly much faster cause it doesn't simulate the hardware but uses Mac resources, therefore f.e. sio2 Apps (OpenGL,OpenAL,etc. framework) run much better on simulator, well everything that uses more resources will run visibly better in simulator than on device. I hope we can add some more to this.

    Read the article

  • Templates vs. coded HTML

    - by Alan Harris-Reid
    I have a web-app consisting of some html forms for maintaining some tables (SQlite, with CherryPy for web-server stuff). First I did it entirely 'the Python way', and generated html strings via. code, with common headers, footers, etc. defined as functions in a separate module. I also like the idea of templates, so I tried Jinja2, which I find quite developer-friendly. In the beginning I thought templates were the way to go, but that was when pages were simple. Once .css and .js files were introduced (not necessarily in the same folder as the .html files), and an ever-increasing number of {{...}} variables and {%...%} commands were introduced, things started getting messy at design-time, even though they looked great at run-time. Things got even more difficult when I needed additional javascript in the or sections. As far as I can see, the main advantages of using templates are: Non-dynamic elements of page can easily be viewed in browser during design. Except for {} placeholders, html is kept separate from python code. If your company has a web-page designer, they can still design without knowing Python. while some disadvantages are: {{}} delimiters visible when viewed at design-time in browser Associated .css and .js files have to be in same folder to see effects in browser at design-time. Data, variables, lists, etc., must be prepared in advanced and either declared globally or passed as parameters to render() function. So - when to use 'hard-coded' HTML, and when to use templates? I am not sure of the best way to go, so I would be interested to hear other developers' views. TIA, Alan

    Read the article

  • Animate multiple UIView in a cicle

    - by Giovanni
    Hi all, i'm creating a card game on iphone. My problem is that i want to animate the cards at the beginning of the game making the cards animate from a point to another point in a deck. I move my cards that are UIView, in afor cicle. this is what i do With this code, alla tha cards move together, i need to move the cards separately one after another CGPoint point; // Create the deck of playing cards for (int i = 0; i < 28; i++) { CardView *aCardView = [self.mazzo objectAtIndex:i]; point.x = -100; point.y = 200; aCardView.center = point; aCardView.zPosition = i; [self.viewGioco addSubview:aCardView]; [aCardView release]; //Here i call the method to position the card [aCardView positionCard]; } in the card view there are this methods -(void)positionCard{ [self performSelector:@selector(_positionCard) withObject:nil afterDelay:0.0]; } -(void)_positionCard{ [UIView beginAnimations:@"posizionacarta" context:nil]; [UIView setAnimationCurve:UIViewAnimationCurveEaseIn]; [UIView setAnimationDuration:0.3f]; CGPoint point; point.x = 280 + ((arc4random() % 2) - 1); point.y = 240 + ((arc4random() % 2) - 1); self.center = point; [UIView commitAnimations]; [self setNeedsLayout]; }

    Read the article

  • How to use jaxp 3 with jdk 1.6?

    - by Michal
    I'm trying to migrate application from jdk 1.5 to jdk 1.6 without introducing any changes visible to the end user. Application's output is an xml generated using jaxp which is a part of the jdk libraries. Since jaxp versions are different in jdk 1.5 and 1.6, the resulting xml looks different in each version. An example: DatatypeFatory.newInstance().newDuration(60) produces 'PT2H17M0.000S' in jdk 1.5 and 'P0Y0M0DT2H17M0.000S' in jdk 1.6. Both are correct, but i want to avoid any visible changes. Classes like DatatypeFactory have a mechanism which allows specifying which implementation should be used, but it relies on specifying full qualified class name. So theoretically i could download jaxp jars with the same version which is used in jdk 1.5 and let the application use them. Unfortunately the package and class names are the same in both versions, so i would have to somehow tell java to load classes from jar and not jdk. I was trying to put jaxp jars at the beginning of the classpath, but it didn't help. Is it possible to tell java to load classes from external jar and not jdk libraries? Can i solve this problem in any other way? Thanks in advance

    Read the article

  • c - strncpy issue

    - by Joe
    Hi there, I am getting segmentation fault when using strncpy and (pointer-to-struct)-(member) notation: I have simplified my code. I initialise a struct and set all of it's tokens to an empty string. Then a declare a pointer to a struct and assign the address of the struct to it. I pass the pointer to a function. I can print out the contents of the struct at the beginning of the function, but if I try to use the tp - mnemonic in a strncpy function, I get seg fault. Can anyone tell me what I am doing wrong? typedef struct tok { char* label; char* mnem; char* operand; }Tokens; Tokens* tokenise(Tokens* tp, char* line) { // This prints fine printf("Print this - %s\n", tp -> mnem); // This function gives me segmentation fault strncpy(tp -> mnem, line, 4); return tp; } int main() { char* line = "This is a line"; Tokens tokens; tokens.label = ""; tokens.mnem = "load"; tokens.operand = ""; Tokens* tp = &tokens; tp = tokenise(tp, line); return 0; } I have used printf statements to confirm that the code definitely stops executing at the strncpy function. Can anyone tell me where I am going wrong? Many thanks Joe

    Read the article

  • Line Text with Nav Bar in HTML

    - by Eric
    I have a navbar right under the title to the site, but I want to be line up the first and last items in the navbar with the beginning and end of the Title. I don't have a live preview, but I attached an image. I can get it to line up in one browser, but when I open it in the other, its off again. Is there an easy way to line the text up so it works for everything? thank you HTML: <body onload="play()"> <div class="heading">UPRISING</div> <div class="container_12"> <div id="topnav" align="center"> <ul id="list-nav"> <li><a href="home.html">HOME</a></li> <li><a href="about.html">ABOUT</a></li> <li><a href="trailer.html">TRAILER</a></li> <li><a href="stills.html">STILLS</a></li> <li><a href="news.html">NEWS</a></li> <li><a href="contact.html">CONTACT</a></li> <!-- <li><a href="distribution.html">DISTRIBUTION</a></li> --> </ul> </div> <!-- START OF CONTAINER --> <div class="trailer"> <img id="imgHolder" /> </div> </div> <!-- END OF CONTAINER 12 --> CSS: #topnav li { margin-right: 110px; } #topnav li:nth-last-child(1) { margin-right: 0px; }

    Read the article

  • Where to put external archives to configure running in Eclipse?

    - by Buggieboy
    As a Java/Eclipse noob coming from a Visual Studio .NET background, I'm trying to understand how to set up my run/debug environment in the Eclipse IDE so I can start stepping through code. I have built my application with separate src and bin hierarchies for each library project, and each project has its own jar. For example, in a Windows environment, I have something like: c:\myapp\myapp_main\src\com\mycorp\myapp\main ...and a parallel "bin" tree like this: c:\myapp\myapp_main\bin\com\mycorp\myapp\main Other supporting projects are, similarly: **c:\myapp\myapp_util\src\com\mycorp\myapp\uti**l (and a parallel "bin" tree.) ... etc. So, I end up with, e.g., myapp_util.jar in the ...\myapp_util\bin... path and then add that as an external archive to my myapp_main project. I also use utilities like gluegen-rt.jar, which I add ad external dependencies to the projects requiring them. I have been able to run outside of the Eclipse environment, by copying all my project jars, gluegen-rt DLL, etc., into a "lib" subfolder of some directory and executing something like: java -Djava.library.path=lib -DfullScreen=false -cp lib/gluegen-rt.jar;lib/myapp_main.jar;lib/myapp_util.jar; com.mycorp.myapp.Main When I first pressed F11 to debug, however, I got a message about something like /com/sun/../glugen... not being found by the class loader. So, to debug, or even just run, in Ecplipse, I tried setting up my VM arguments in the Galileo Debug - (Run/Debug) Configurations to be the command line above, beginning at "-Djava.libary.path...". I've put a lib subdirectory - just like the above with all jars and the native gluegen DLL - in various places, such as beneath the folder that my main jar is built in and as a subfolder of my Ecplipse starting workspace folder, but now Eclipse can't find the main class: java.lang.NoClassDefFoundError: com.mycorp.myapp.Main Although the Classpath says that it is using the "default classpath", whatever that is. Bottom line, how do I assemble the constituent files of a multi-project application so that I can run or debug in Ecplipse?

    Read the article

  • Create variable names using a loop in Java?

    - by SeerUK
    Hi, first time poster, long time reader so be gentle with me :) See the following code which works to generate me timestamps for the beginning and end of every month in a financial year. int year = 2010; // Financial year runs from Sept-Aug so earlyMonths are those where year = FY-1 and lateMonths are those where year = FY int[] earlyMonths = {8, 9, 10, 11}; // Sept to Dec int earlyYear = year -1; for (int i : earlyMonths) { month = i; Calendar cal = Calendar.getInstance(); cal.clear(); cal.set(earlyYear,month,1,0,0,0); Long start = cal.getTimeInMillis(); cal.clear(); cal.set(earlyYear,month,1); lastDayofMonth = cal.getActualMaximum(GregorianCalendar.DAY_OF_MONTH); cal.set(earlyYear,month,lastDayofMonth,23,59,59); Long end = cal.getTimeInMillis(); } int[] lateMonths = {0, 1, 2, 3, 4, 5, 6, 7}; // Jan to Aug for (int i : lateMonths) { month = i; Calendar cal = Calendar.getInstance(); cal.clear(); cal.set(year,month,1,0,0,0); Long start = cal.getTimeInMillis(); cal.clear(); cal.set(year,month,1); lastDayofMonth = cal.getActualMaximum(GregorianCalendar.DAY_OF_MONTH); cal.set(year,month,lastDayofMonth,23,59,59); Long end = cal.getTimeInMillis(); } So far so good, but in order to use these results I need these timestamps to be output to variables named by month (to be used in a prepared statement later in the code. e.g. SeptStart = sometimestamp, SeptEnd = some timestamp etc etc. I don't know if it is possible to declare new variables based on the results of each loop. Any ideas?

    Read the article

  • First-chance exception at std::set dectructor

    - by bartek
    Hi, I have a strange exception at my class destructor: First-chance exception reading location 0x00000 class DispLst{ // For fast instance existance test std::set< std::string > instances; [...] DispLst::~DispLst(){ this->clean(); DeleteCriticalSection( &instancesGuard ); } <---- here instances destructor raises exception Call stack: X.exe!std::_Tree,std::allocator ,std::less,std::allocator ,std::allocator,std::allocator ,0 ::begin() Line 556 + 0xc bytes C++ X.exe!std::_Tree,std::allocator ,std::less,std::allocator ,std::allocator,std::allocator ,0 ::_Tidy() Line 1421 + 0x64 bytes C++ X.exe!std::_Tree,std::allocator ,std::less,std::allocator ,std::allocator,std::allocator ,0 ::~_Tree,std::allocator ,std::less,std::allocator ,std::allocator,std::allocator ,0 () Line 541 C++ X.exe!std::set,std::allocator ,std::less,std::allocator ,std::allocator,std::allocator ::~set,std::allocator ,std::less,std::allocator ,std::allocator,std::allocator () + 0x2b bytes C++ X.exe!DispLst::~DispLst() Line 82 + 0xf bytes C++ The exact place of error in xtree: void _Tidy() { // free all storage erase(begin(), end()); <------------------- HERE this->_Alptr.destroy(&_Left(_Myhead)); this->_Alptr.destroy(&_Parent(_Myhead)); this->_Alptr.destroy(&_Right(_Myhead)); this->_Alnod.deallocate(_Myhead, 1); _Myhead = 0, _Mysize = 0; } iterator begin() { // return iterator for beginning of mutable sequence return (_TREE_ITERATOR(_Lmost())); <---------------- HERE } What is going on ? I'm using Visual Studio 2008.

    Read the article

  • Parsing a blackberry .ipd file

    - by galaxywatcher
    I recently lost my Blackberry. When I discovered it was gone very shortly afterwards and called it, the sim card had already been removed. I ain't seeing that Blackberry again. Ok. I am out $300, but at least my data is backed up. I had an older working Blackberry fortunately and I got a new sim card and proceeded to restore my data using Blackberry Desktop Manager. 7000+ emails, hundreds of autotext entries, sms messages, calendar events, all backing up. Looking good. Lo and behold! My Address Book contacts refuse to back up? I try advanced, and it is greyed out as an option to restore. Far more frustrating than losing my bberry in the first place is wrangling with software that defies human logic. Ok, now I guess I will have to enter all 327 names by hand. That is, if I can read the .ipd file. I have tried the free version of ABC Amber Blackberry editor, but when I open the .ipd file, the contacts just do not show up. I am beginning to feel like the gods are conspiring against me. Then I found this: http://jabide.com/2009/03/parse-blackberry-ipd-files/ He posted a perl script that claims to extract the files. I copied and pasted the code and it did list all the different databases in my .ipd file, I was elated that a cool solution like this was published. I followed the instructions and garbled data with some discernible ascii was sent to standard output unlike a .csv file like he said it would. This is enough to make a grown man cry. Does anyone out there have a solution to extract my address book contacts from an .ipd file?

    Read the article

  • Hyperlink regex including http(s):// not working in C#

    - by Rory Fitzpatrick
    I think this is sufficiently different from similar questions to warrant a new one. I have the following regex to match the beginning hyperlink tags in HTML, including the http(s):// part in order to avoid mailto: links <a[^>]*?href=[""'](?<href>\\b(https?)://[^\[\]""]+?)[""'][^>]*?> When I run this through Nregex (with escaping removed) it matches correctly for the following test cases: <a href="http://www.bbc.co.uk"> <a href="http://bbc.co.uk"> <a href="https://www.bbc.co.uk"> <a href="mailto:[email protected]"> However when I run this in my C# code it fails. Here is the matching code: public static IEnumerable<string> GetUrls(this string input, string matchPattern) { var matches = Regex.Matches(input, matchPattern, RegexOptions.Compiled | RegexOptions.IgnoreCase); foreach (Match match in matches) { yield return match.Groups["href"].Value; } } And my tests: @"<a href=""https://www.bbc.co.uk"">bbc</a>".GetUrls(StringExtensions.HtmlUrlRegexPattern).Count().ShouldEqual(1); @"<a href=""mailto:[email protected]"">bbc</a>".GetUrls(StringExtensions.HtmlUrlRegexPattern).Count().ShouldEqual(0); The problem seems to be in the \\b(https?):// part which I added, removing this passes the normal URL test but fails the mailto: test. Anyone shed any light?

    Read the article

  • Should this even be a has_many :through association?

    - by GoodGets
    A Post belongs_to a User, and a User has_many Posts. A Post also belongs_to a Topic, and a Topic has_many Posts. class User < ActiveRecord::Base has_many :posts end class Topic < ActiveRecord::Base has_many :posts end class Post < ActiveRecord::Base belongs_to :user belongs_to :topic end Well, that's pretty simple and very easy to set up, but when I display a Topic, I not only want all of the Posts for that Topic, but also the user_name and the user_photo of the User that made that Post. However, those attributes are stored in the User model and not tied to the Topic. So how would I go about setting that up? Maybe it can already be called since the Post model has two foreign keys, one for the User and one for the Topic? Or, maybe this is some sort of "one-way" has_many through assiociation. Like the Post would be the join model, and a Topic would has_many :users, :through = :posts. But the reverse of this is not true. Like a User does NOT has_many :topics. So would this even need to be has_many :though association? I guess I'm just a little confused on what the controller would look like to call both the Post and the User of that Post for a give Topic. Edit: Seriously, thank you to all that weighed in. I chose tal's answer because I used his code for my controller; however, I could have just as easily chosen either j.'s or tim's instead. Thank you both as well. This was so damn simple to implement, and I think today marks the day that I'm beginning to fall in love with rails.

    Read the article

  • x86_64 Assembly Command Line Arguments

    - by Brandon oubiub
    I'm new to assembly, and I just got familiar with the call stack, so bare with me. To get the command line arguments in x86_64 on Mac OS X, I can do the following: _main: sub rsp, 8 ; 16 bit stack alignment mov rax, 0 mov rdi, format mov rsi, [rsp + 32] call _printf Where format is "%s". rsi gets set to argv[0]. So, from this, I drew out what (I think) the stack looks like initially: top of stack <- rsp after alignment return address <- rsp at beginning (aligned rsp + 8) [something] <- rsp + 16 argc <- rsp + 24 argv[0] <- rsp + 32 argv[1] <- rsp + 40 ... ... bottom of stack And so on. Sorry if that's hard to read. I'm wondering what [something] is. After a few tests, I find that it is usually just 0. However, occasionally, it is some (seemingly) random number. EDIT: Also, could you tell me if the rest of my stack drawing is correct?

    Read the article

  • Process Close does not close a process when performed in a SetTimer label

    - by NbdNnm
    The script below creates a child process to perform FileExist() separately from the main script so that it avoids halting the script when an unknown network path is passed. However, the command, Process close, does not close the given process despite its ErrorLevel indicates it succeeded to close. Task Manager shows the child process still exists. FileExistTimeout() ; this checks if the necessary parameters are passed ; this checks if the given path exists by creating a child process with the given timeout PathToCheck := "\\1.2.3.4\test" msgbox, 64, Test Result, % FileExistTimeout(PathToCheck) "`n" ErrorLevel FileExistTimeout(strPath="", nTimeout=1000, strSwitch="/fe") { global strParam1 = %1% strParam2 = %2% ; if the function is used to check the script parameters if (strPath="") { if (strParam2 = strSwitch) && strParam1 ; this means the function is placed at the beginning of the script. ExitApp % (FileExist(strParam1) != "") + 1 ; Return 1 or 2. Return } ; create a child process to check the path tooltip, RunWait is performing.... SetTimer, FileExistTimeout, % -1 * nTimeout RunWait "%A_AhkPath%" "%A_ScriptFullPath%" "%strPath%" "%strSwitch%",,, nPID SetTimer, FileExistTimeout, Off ; Disable the timer (if it hasn't fired already). tooltip ; ErrorLevel contains the exit code of the process (from RunWait). if ErrorLevel = 2 ; found return true else if ErrorLevel = 1 ; not found return return ; timeout FileExistTimeout: Process Close, %nPID% ; Timed out - terminate the process. tooltip, % "Process Closed: " ErrorLevel "`n" "Used Pid: " nPID,,, 2 return }

    Read the article

  • PHP Streaming CSV always adds UTF-8 BOM

    - by Mustafa Ashurex
    The following code gets a 'report line' as an array and uses fputcsv to tranform it into CSV. Everything is working great except for the fact that regardless of the charset I use, it is putting a UTF-8 bom at the beginning of the file. This is exceptionally annoying because A) I am specifying iso and B) We have lots of users using tools that show the UTF-8 bom as characters of garbage. I have even tried writing the results to a string, stripping the UTF-8 BOM and then echo'ing it out and still get it. Is it possible that the issue resides with Apache? If I change the fopen to a local file it writes it just fine without the UTF-8 BOM. header("Content-type: text/csv; charset=iso-8859-1"); header("Cache-Control: no-store, no-cache"); header("Content-Disposition: attachment; filename=\"report.csv\""); $outstream = fopen("php://output",'w'); for($i = 0; $i < $report-rowCount; $i++) { fputcsv($outstream, $report-getTaxMatrixLineValues($i), ',', '"'); } fclose($outstream); exit;

    Read the article

  • cakephp secure link using html helper link method..

    - by Aaron
    What's the best way in cakephp to extend the html-link function so that I can tell it to output a secure(https) link? Right now, I've added my own secure_link function to app_helpers that's basically a copy of the link function but adding a https to the beginning. But it seems like there should be a better way of overriding the html-link method so that I can specify a secure option. http://groups.google.com/group/cake-php/browse%5Fthread/thread/e801b31cd3db809a I also started a thread on the google groups and someone suggested doing something like $html->link('my account', array('base' => 'https://', 'controller' => 'users')); but I couldn't get that working. Just to add, this is what is outputted when I have the above code. <a href="/users/index/base:https:/">my account</a> I think there's a bug in the cake/libs/router.php on line 850. There's a keyword 'bare' and I think it should be 'base' Though changing it to base doesn't seem to fix it. From what I gather, it's telling it to exclude those keys that are passed in so that they don't get included as parameters. But I'm puzzled as to why it's a 'bare' keyword and the only reason I can come up with is that it's a type.

    Read the article

  • WPF ValidationRule Validate when the control is loaded

    - by PaN1C_Showt1Me
    Hi ! I have a control with this validation <MyPicker.SelectedItem> <Binding Path="Person.Value" Mode="TwoWay" UpdateSourceTrigger="PropertyChanged" NotifyOnValidationError="True"> <Binding.ValidationRules> <rules:MyValidationRule ValidationType="notnull"/> </Binding.ValidationRules> </Binding> </MyPicker.SelectedItem> This is the Validation Class: class MyValidationRule : ValidationRule { private string _validationType; public string ValidationType { get { return _validationType; } set { _validationType = value; } } public override ValidationResult Validate(object value, CultureInfo cultureInfo) { ValidationResult trueResult = new ValidationResult(true, null); switch (_validationType.ToLower()) { case "notnull": return value == null ? new ValidationResult(false, "EMPTY FIELD") : trueResult; default: return trueResult; } } } Question: When the property is changed, then the Validate( ) method is called which is correct. But to call this method at the very beginning when the MyControl is created? I need to prove immediate after initialize if the there's a null value in the control (and display a validation error)

    Read the article

  • C++ Beginner - Trouble using classes inside of classes

    - by Francisco P.
    Hello, I am working on a college project, where I have to implement a simple Scrabble game. I have a player class (containing a Score and the player's hand, in the form of a std::string, and a score class (containing a name and numeric (int) score). One of Player's member-functions is Score getScore(), which returns a Score object for that player. However, I get the following error on compile time: player.h(27) : error C2146: syntax error : missing ';' before identifier 'getScore' player.h(27) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int player.h(27) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int player.h(27) : warning C4183: 'getScore': missing return type; assumed to be a member function returning 'int' player.h(35) : error C2146: syntax error : missing ';' before identifier '_score' player.h(35) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int player.h(35) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int Here's lines 27 and 35, respectively: Score getScore(); //defined as public (...) Score _score; //defined as private I get that the compiler is having trouble recognizing Score as a valid type... But why? I have correctly included Score.h at the beginning of player.h: #include "Score.h" #include "Deck.h" #include <string> I have a default constructor for Score defined in Score.h: Score(); //score.h //score.cpp Score::Score() { _name = ""; _points = 0; } Any input would be appreciated! Thanks for your time, Francisco EDIT: As requested, score.h and player.h: http://pastebin.com/3JzXP36i http://pastebin.com/y7sGVZ4A

    Read the article

  • SQL Server Clustered Index: (Physical) Data Page Order

    - by scherand
    I am struggling understanding what a clustered index in SQL Server 2005 is. I read the MSDN article Clustered Index Structures (among other things) but I am still unsure if I understand it correctly. The (main) question is: what happens if I insert a row (with a "low" key) into a table with a clustered index? The above mentioned MSDN article states: The pages in the data chain and the rows in them are ordered on the value of the clustered index key. And Using Clustered Indexes for example states: For example, if a record is added to the table that is close to the beginning of the sequentially ordered list, any records in the table after that record will need to shift to allow the record to be inserted. Does this mean that if I insert a row with a very "low" key into a table that already contains a gazillion rows literally all rows are physically shifted on disk? I cannot believe that. This would take ages, no? Or is it rather (as I suspect) that there are two scenarios depending on how "full" the first data page is. A) If the page has enough free space to accommodate the record it is placed into the existing data page and data might be (physically) reordered within that page. B) If the page does not have enough free space for the record a new data page would be created (anywhere on the disk!) and "linked" to the front of the leaf level of the B-Tree? This would then mean the "physical order" of the data is restricted to the "page level" (i.e. within a data page) but not to the pages residing on consecutive blocks on the physical hard drive. The data pages are then just linked together in the correct order. Or formulated in an alternative way: if SQL Server needs to read the first N rows of a table that has a clustered index it can read data pages sequentially (following the links) but these pages are not (necessarily) block wise in sequence on disk (so the disk head has to move "randomly"). How close am I? :)

    Read the article

  • Development environment for ASP.NET with EpiServer

    - by Binary255
    At our company we are going to develop more for the Windows platform than we have done up until now. As this scale of Windows development is new to us it would be nice with some feedback from experienced developers. Requirements we have: 5 developers from the beginning. 15 developers a year from now. All developers should be able to develop at the same time. Be able to develop solution for ASP.NET and EpiServer 5. Our idea: A shared server which developers use for development through Terminal Services. SQL Server Express. Start with some free express edition of Visual Studio, upgrade to a commercial version if we need the additional features. Use IIS and not the web server built into Visual Studio. Questions: Are we on the right track? In terms of license costs the above should be cheapest, right? What do you think about multiple developers doing development using a shared TS-server? Do you know of any company which has a similar development environment? Are we going to miss some features of the full Visual Studio version immediately? Is using Express version a bad choice? Is IIS the best choice? If use IIS the developers may use the same port for deployment. If we use the built in web server each one has to set their own port as we're sharing a machine. Comment answer: We are thinking about a shared server as it will most likely decrease the license costs. So it's purely a cost issue. We are using CVS for version control. Our situation is that we develop on Mac and Linux, that's why buying 1 server license + Visual Studio licenses seems to be a cost effective way of starting this type of development.

    Read the article

  • Why use SQL database?

    - by martinthenext
    I'm not quite sure stackoverflow is a place for such a general question, but let's give it a try. Being exposed to the need of storing application data somewhere, I've always used MySQL or sqlite, just because it's always done like that. As it seems like the whole world is using these databases, most of all software products, frameworks, etc. It is rather hard for a beginning developer like me to ask a question - why? Ok, say we have some object-oriented logic in our application, and objects are related to each other somehow. We need to map this logic to the storage logic, so we need relations between database objects too. This leads us to using relational database and I'm ok with that - to put it simple, our database rows sometimes will need to have references to other tables' rows. But why do use SQL language for interaction with such a database? SQL query is a text message. I can understand this is cool for actually understanding what it does, but isn't it silly to use text table and column names for a part of application that no one ever seen after deploynment? If you had to write a data storage from scratch, you would have never used this kind of solution. Personally, I would have used some 'compiled db query' bytecode, that would be assembled once inside a client application and passed to the database. And it surely would name tables and colons by id numbers, not ascii-strings. In the case of changes in table structure those byte queries could be recompiled according to new db schema, stored in XML or something like that. What are the problems of my idea? Is there any reason for me not to write it myself and to use SQL database instead?

    Read the article

  • C: lseek() related question.

    - by Andrei Ciobanu
    I want to write some bogus text in a file ("helloworld" text in a file called helloworld), but not starting from the beginning. I was thinking to lseek() function. If I use the following code: #include <unistd.h> #include <fcntl.h> #include <sys/stat.h> #include <sys/types.h> #include <stdlib.h> #include <stdio.h> #define fname "helloworld" #define buf_size 16 int main(){ char buffer[buf_size]; int fildes, nbytes; off_t ret; fildes = open(fname, O_CREAT | O_TRUNC | O_WRONLY, S_IRUSR | S_IWUSR); if(fildes < 0){ printf("\nCannot create file + trunc file.\n"); } //modify offset if((ret = lseek(fildes, (off_t) 10, SEEK_END)) < (off_t) 0){ fprintf(stdout, "\nCannot modify offset.\n"); } printf("ret = %d\n", (int)ret); if(write(fildes, fname, buf_size) < 0){ fprintf(stdout, "\nWrite failed.\n"); } close(fildes); return (0); } , it compiles well and it runs without any apparent errors. Still if i : cat helloworld The output is not what I expected, but: helloworld Can Where is "Can" comming from, and where are my empty spaces ? Should i expect for "zeros" instead of spaces ? If i try to open helloworld with gedit, an error occurs, complaining that the file character encoding is unknown.

    Read the article

  • yet another question about migrating to Java

    - by aloneguid
    Hi, There are plenty similar questions, but maybe responses to this one will save a developer's life :) I want to migrate to Java. The reasons are very clear: all the .NET vacancies are client and windows oriented (Silverlight developer, ASP.NET developer, WPF developer etc.) and none of them are any interest to me. I worked with .NET since it's beginning as our company decided to invest in .NET having C++ stack and all the natual problems, so I was just blindly following and actually enjoyed it as the products were mostly server oriented with mixed C++/C# code. Today I have beforementioned problem - can't find an inspiring job. I'd rather kill myself than start working on a Silverlight or WPF project. Searching Java vacancies shows promising results, however they all require a huge java-related technology stack and experience. The question is is there any chance to find a job quickly and without dramatic salary drop (I know that Java guys are usually better paid, so there must be a kind of a credit) and if not, how must time and effort does it take to migrate (my .NET knowledge mostly includes server-oriented technologies like NHibernate, WCF, threading, sockets, ASP.NET web services, Enterprise Library, NInject etc etc etc, and (still) some C++ leftovers). Thanks!

    Read the article

  • Adding libraries to a project in xcode - symbols not found

    - by kudorgyozo
    I am trying to make an iphone app in xcode that uses pjsip. The problem is I don't know how to link the libraries. I have the ARM version of the libraries in this folder in mac os x. /Users/kudorgyozo/pjsip_iphone In Xcode: I have specified the library and header search paths like this: for includes: /Users/kudorgyozo/pjsip_iphone/pjlib/include /Users/kudorgyozo/pjsip_iphone/pjlib-util/include /Users/kudorgyozo/pjsip_iphone/pjmedia/include /Users/kudorgyozo/pjsip_iphone/pjnath/include /Users/kudorgyozo/pjsip_iphone/pjsip/include for libraries: /Users/kudorgyozo/pjsip_iphone/pjlib/lib /Users/kudorgyozo/pjsip_iphone/pjlib-util/lib /Users/kudorgyozo/pjsip_iphone/pjmedia/lib /Users/kudorgyozo/pjsip_iphone/pjnath/lib /Users/kudorgyozo/pjsip_iphone/pjsip/lib and then using the "Other linker flags" : -lpj-arm-apple-darwin9 -lpjlib-util-arm-apple-darwin9 -lpjmedia-arm-apple-darwin9 -lpjmedia-audiodev-arm-apple-darwin9 -lpjmedia-codec-arm-apple-darwin9 -lpjsdp-arm-apple-darwin9 -lpjnath-arm-apple-darwin9 -lpjsip-arm-apple-darwin9 -lpjsip-simple-arm-apple-darwin9 -lpjsip-ua-arm-apple-darwin9 -lpjsua-arm-apple-darwin9 Is this OK like this? Because it gives me symbol(s) not found errors. I think no symbol is found from the "included" libraries. I don't know what is wrong i'm just beginning to understand how building an app works under linux based systems i've only done programming in C# before.

    Read the article

  • nginx with passenger

    - by Luc
    Hello, I'm trying to move from Apache + Passenger to Nginx + passenger on my Ubuntu Lucid Lynx box. When I install passenger, sudo gem install passenger and cd /var/lib/gems/1.9.1/gems/passenger-2.2.14/bin sudo ./passenger-install-nginx-module everything is fine (no error). Nginx is downloaded / compiled and installed at the same time (when selecting the first option during passenger installation). By default it is installed in /opt/nginx. I end up with the configuration file /opt/nginx/conf/nginx.conf (this conf file was automatically updated with passenger config). The thing I do not understand is that I also have the configuration file /etc/nginx/nginx.conf... what is the purpose of this one when it seems that the conf file in /opt/... is the main one ? When I run /etc/init.d/nginx start, it starts correclty saying that /etc/nginx/nginx.conf is ok... Does it mean that it does not check the other conf file ? I have updated /etc/init.d/nginx script and add /opt/nginx/sbin at the beginning of the PATH and it seems the correct conf file is taken into account. It seems like I have 2 nginx installations where I only relied on passenger to install it... Thanks a lot for your help, I am kind of lost here :) Luc

    Read the article

< Previous Page | 91 92 93 94 95 96 97 98 99 100 101 102  | Next Page >