Search Results

Search found 9215 results on 369 pages for 'double pointers'.

Page 200/369 | < Previous Page | 196 197 198 199 200 201 202 203 204 205 206 207  | Next Page >

• Problem with implementing removeAll for List of custom object

  - by Jay

  Hello everyone, I have a scenario in my code where I need to compare two Lists and remove from the first list, objects which are present in the second list. Akin to how the "removeAll" object works for List. Since my List is created on a custom object, the removeAll method won't work for me. I have tried various methods to make this work: - implemented equals() and hashCode for the custom object comprising the list - implemented the Comparable Interface for the custom object - implemented the Comparator Interface for the custom object I've even tried using the Apache Common's CollectionUtils and ListUtils methods (subtract, intersect, removeAll). None seem to work. I understand I will perhaps need to write some custom removal code. But not sure how to go about doing that. Any pointers helping me move in the right direction will be really appreciated. Thanks, Jay

  Read the article

• What's the best way to create a Windows Mobile application with multiple screens in C#

  - by Joseph Earl

  I am creating a Windows Mobile Application in C# and Visual Studio 2008. The application will have 5-6 main 'screens'. There will also be bar (/area) with information (e.g. a title, whether the app is busy, etc) above the screens, and a toolbar (or similar control) below the screens with 5-6 buttons (with images) to change the active screen (i.e. the screens will share the top bar and toolbar) What is the best way to implement this? Use multiple forms, and just include the toolbar and top-bar in each Use a single form and something like the Tab control (but customised) to contain the screens Something else? Keeping in mind a) memory usage and b) time to switch screens. Thanks in advance. Any links, pointers etc are much appreciated.

  Read the article

• Handler invocation speed: Objective-C vs virtual functions

  - by Kerido

  I heard that calling a handler (delegate, etc.) in Objective-C can be even faster than calling a virtual function in C++. Is it really correct? If so, how can that be? AFAIK, virtual functions are not that slow to call. At least, this is my understanding of what happens when a virtual function is called: Compute the index of the function pointer location in vtbl. Obtain the pointer to vtbl. Dereference the pointer and obtain the beginning of the array of function pointers. Offset (in pointer scale) the beginning of the array with the index value obtained on step 1. Issue a call instruction. Unfortunately, I don't know Objective-C so it's hard for me to compare performance. But at least, the mechanism of a virtual function call doesn't look that slow, right? How can something other than static function call be faster?

  Read the article

• How to configure Linux to open files by extension?

  - by Gregory MOUSSAT

  The various Linux's desktops open files according to their mime type. This is a very nice feature but I also need to open them by extension (as with Windows). For instance, I want to open every xxxxx.vnc files with a specific program when I double-click on them. I use xfce but I don't think it differs from Gnome or KDE because all of them use the same configuration files (defaults.list and mimeapps.list). If possible the settings are user specific, not system wide. I've found some very poor informations about that, and all are system wide, so may be wiped out by some updates.

  Read the article

• Arbitrary Key Remapping on a Mac

  - by Mason

  I bought a cheap Chinese replacement keyboard for my late 2007 MBP. The close square/curly bracket key actually sends a left control signal to the Mac. So I'm trying to remap my backslash/pipe key to be close square/curly bracket but I can't find the key remapping software to do it. Double Command and KeyRemap4Macbook can't do arbitrary key remaps and uControl/fkeys don't work on Snow Leopard. Anyone have ideas? I have no problem editing text config files if necessary.

  Read the article

• Objective C message dispatch mechanism

  - by Dolphin

  I am just staring to play around with Objective C (writing toy iPhone apps) and I am curious about the underlying mechanism used to dispatch messages. I have a good understanding of how virtual functions in C++ are generally implemented and what the costs are relative to a static or non-virtual method call, but I don't have any background with Obj-C to know how messages are sent. Browsing around I found this loose benchmark and it mentions IMP cached messages being faster than virtual function calls, which are in turn faster than a standard message send. I am not trying to optimize anything, just get deeper understanding of how exactly the messages get dispatched. How are Obj-C messages dispatched? How do Instance Method Pointers get cached and can you (in general) tell by reading the code if a message will get cached? Are class methods essentially the same as a C function (or static class method in C++), or is there something more to them? I know some of these questions may be 'implementation dependent' but there is only one implementation that really counts.

  Read the article

• Cannot run setups from a mapped network drive on Windows 7

  - by Dimitri C.

  I'm trying to run an application setup by double-clicking the setup.exe from within Windows Explorer. The file is located on a mapped network drive, and I'm using Windows 7. This results in the following error message: The specified path does not exist. Check the path, and then try again. The workaround I found is to copy the installer to the main hard drive (c:) and run it from there; however, this is rather inconvenient. The same action did work on Windows 2000, Windows XP and Windows Vista. I have the impression that the problem only occurs with installers, as everything seemed to work fine with regular exe's. Is there anyone who can explain this odd behavior?

  Read the article

• Boost bind function

  - by Gokul

  Hi, I have a abstract base class A and a set of 10 derived classes. The infix operator is overloaded in all of the derived classes class A{ void printNode( std::ostream& os ) { this->printNode_p(); } void printNode_p( std::ostream& os ) { os << (*this); } }; There is a container which stores the base class pointers. I want to use boost::bind function to call the overloaded infix operator in each of its derived class. I have written like this std::vector<A*> m_args .... std::ostream os; for_each( m_args.begin(), m_args.end(), bind(&A::printNode, _1, os) ); What is the problem with this code? Thanks, Gokul.

  Read the article

• Installing perforce visual client on linux

  - by Manish

  I am from Mac background trying my hand at installing perforce client visual(P4V) on my linux box.For this I download the correct version here and untar the files. Then I cd to the directory ~/Desktop/p4v-2012-blah-blah/bin I also say chmod +x p4* After this i try running p4v (by double clicking) but I dont see anything .The file type is shown as a "text executable" but i dont know why it is not running. On mac i had done the same thing -just clicked on p4v and the client would show up(where I filled the server address and everything )But not sure what is going wrong here.Can someone give me directions? FWIW i did check out this link .

  Read the article

• Executing local script/command on remote server

  - by Ian McGrath

  I have a command that I want to run on machine B from machine A. If I run the command on machine B locally, it works fine. Here is the command: for n in `find /data1/ -name 'ini*.ext'` ; do echo cp $n "`dirname $n `/` basename $n .ext`"; done From machine A, I issue this command ssh user@machineB for n in `find /data1/ -name 'ini*jsem'` ; do echo cp $n "`dirname $n `/` basename $n .jsem`"; done But I get error syntax error near unexpected token do What is wrong? I think it has something to do with double quotes, single quotes, semi colon because executing command ssh user@machineB ls works fine. So not issue of authentication or something else. Thanks

  Read the article

• How to automate a build for a Visual FoxPro project?

  - by jpierson

  I'm interested in figuring out how to automate a build from Visual FoxPro similar to how we can build .NET projects from the command line using MSBuild. It seems that it is possible to pass command line arguments to VFP.exe which may include the ability to specify some initial startup prg that runs however it is unclear how well starting up the IDE will work from non-interactive accounts such as the Network Service on Windows which is likely where an automated build would run. Has anybody attempt this before or read about anybody attempting to script a VFP build like this? I would be grateful for any pointers that may lead me to a solution.

  Read the article

• Best practices for fixed-width processing in .NET

  - by jmgant

  I'm working a .NET web service that will be processing a text file with a relatively long, multilevel record format. Each record in the file represents a different entity; the record contains multiple sub-types. (The same record format is currently being processed by a COBOL job, if that gives you a better picture of what we're looking at). I've created a class structure (a DATA DIVISION if you will) to hold the input data. My question is, what best practices have you found for processing large, complex fixed-width files in .NET? My general approach will be to read the entire line into a string and then parse the data from the string into the classes I've created. But I'm not sure whether I'll get better results working with the characters in the string as an array, or with the string itself. I guess that's the specific question, string vs. char[], but I would appreciate any other pointers anyone has. Thanks.

  Read the article

• virt-viewer slower than virt-manager when viewing

  - by map7

  I've got a thin client server in which I have a few VM's for users under KVM which I manage through virt-manager. What I've noticed is if I start a VM guest on a thin client using the command 'virt-viewer ' then the guest is painfully slow to move around. However if on the same thin client I start the same guest VM through virt-manager it's fast. What are the differences here? Can I start a VM without having the user load up virt-manager and double click on their VM? Should I be looking at using splice in virt-viewer instead of VNC which is what I currently use?

  Read the article

• How to find out memory layout of your data structure implementation on Linux 64bit machine

  - by ajay

  In this article, http://cacm.acm.org/magazines/2010/7/95061-youre-doing-it-wrong/fulltext the author talks about the memory layouts of 2 data structures - The Binary Heap and the B-Heap and compares how one has better memory layout than the other. http://deliveryimages.acm.org/10.1145/1790000/1785434/figs/f5.jpg http://deliveryimages.acm.org/10.1145/1790000/1785434/figs/f6.jpg I want to get hands on experience on this. I have an implementation of a N-Ary Tree and I want to find out the memory layout of my data structure. What is the best way to come up with a memory layout like the one in the article? Secondly, I think it is easier to identify the memory layout if it is an array based implementation. If the implementation of a Tree uses pointers then what Tools do we have or what kind of approach is required to map it's memory layout? Thanks!

  Read the article

• Mobile phone - configuration via SMS

  - by vpdn

  In Germany, mobile carriers often provide a simple way to configure your mobile phone for MMS and GPRS: After keying in your phone number and device model on the carrier's website, you get a "configuration sms" sent to you. I'm trying to understand how that works from a technical standpoint. I have scanned through 3GPP TS 03.40 (http://www.3gpp.org/ftp/Specs/html-info/0340.htm), but haven't been able to find much. Also, the fact that one has to provide the phone model indicates that it is a provider specific thing and not standardized? Does anyone have any pointers for me? Also I'd be interested how the "internet-enabling" process looks like in other countries. Anyone care to share?

  Read the article

• dll woes c# noob

  - by Chin

  Hi, I'm a bit of a visual studio noob. I have just restarted a project in which I am using NHibernate. The project worked fine last time I used it but now is giving the following error. System.IO.FileLoadException: Could not load file or assembly 'Iesi.Collections, Version=1.0.0.3, Culture=neutral, PublicKeyToken=aa95f207798dfdb4' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) at NHibernate.Cfg.Configuration.Reset() at NHibernate.Cfg.Configuration..ctor(SettingsFactory settingsFactory) at NHibernate.Cfg.Configuration..ctor() at Luther.Dao.Repositories.Session.NHibernateHelper..cctor() in NHibernateHelper.cs: line 18 I notice the current reference to the iesi dll ia at 1.0.1.0. What is the best way to get this up and running again? Try and find the appropriate version of the dll or sort out the manifest file? Any pointers much appreciated.

  Read the article

• Automatically Snapshoting AWS instances (or other back up strategy)

  - by user1172468

  I just realized that my aws instance count has risen into the double digits. I'm currently backing portions of my folders and dbs and moving them off to a backup instance. What I think I should be doing is taking a snapshot of the instances (automatically) and persisting them on S3 so I have a running 7 day collection of daily backups. There is a question asking the same thing here, however the answers don't go into depth. So the closest answer seems to be: use a cron job to snapshot the instance. So do I run the cron job on the instance itself? or do I have a micro instance to run these snapshots? Could I get an example script or the command for say a linux flavor? what software must I have installed to get this to run? Thanks.

  Read the article

• Localize Currency for iPhone

  - by Meltemi

  I would like my iPhone app to allow the input, display and storage of currency amounts using the appropriate symbol ($, €, £, ¥, etc) for the user. Would NSNumberFormatter do everything I need? What happens when a user switches their locale and these amounts (dollars, yen, etc.) are stored as NSDecimalNumbers. I assume, to be safe, it's necessary to somehow capture the locale at the time of entry and then the currency symbol and store them in my instance along with the NSDecimalNumber ivar so they can be unwrapped and displayed appropriately down the road should the user changed their locale since the time when the item was created? Sorry, I have little localization experience so hoping for a couple quick pointers before diving in. Lastly, any insight on how to you handle this kind of input given the limitations of the iPhone's keyboards?

  Read the article

• esxi VM will not connect to virual switch

  - by NitroxDM

  I have a exsi box with a VM (Windows 2003) that will not connect to any of the switches. The switch shows the VM connected but I can not ping anything on the network. I have double checked the VM's IP. No dice. There are a ton of messages in the log: [DATE 'VmMisc' NNNNN warning] Failed to validate VM IP address: unknown Update: There are 3 other VMs. Each vSwitch has 56 ports. I can ping from one nic to the other. Each vSwitch shows that the new VM is connect. VMware ESX Server 3i V 3.5.9 Build 123629 Update 2: Out of the blue it just started working. I didn't change anything. I think it has something to do with RRAS.

  Read the article

• Fine control over zoom and aspect ratio in VLC player

  - by ashh

  In VLC Player (v1.01), how do I zoom video and control aspect ratio with fine control, as is possible with Media Player Classic Home Cinema (MPCHC)? The standard zoom appears to only support double, normal, quarter size etc, not useful to me at all. An example: I play an older music video file that is in 4:3 aspect ratio. In MPCHC I can use the number pad to zoom in small increments until I have removed the left and right letterbox bars and the video fills the whole screen. I can also stretch and move the video in small increments until I am happy with the aspect ratio and position. I could continue using MPCHC, but I have two displays and really like VLC feature enabling full-screen video on the main screen and the VLC interface (menus etc) on the second. I have not found a way to do this on MPCHC, if anyone knows I'd also be interested to hear.

  Read the article

• SSIS DSN Not Showing as ODBC Data Source

  - by user1114330

  I have been following the directions here: http://social.msdn.microsoft.com/Forums/en-US/sqlintegrationservices/thread/05ccd778-b78c-4a83-a10a-c4ae412cc6e4 And ran into a problem where my System DSN is not showing up as a ODBC provider. I found this which seemed promising: http://support.microsoft.com/kb/2000277 I was not able to delete the key but followed but I did what was suggested: "If unable to delete the key, double-click the key and erase the Data value entered. Once done, the value should read ' (value not set) '" However, after following the instructions my System DSN still does not appear as an option. The USER DSN however does show...has shown but does not work as I get a permissions error. Any ideas?

  Read the article

• How to make Excel's "Auto Fit Row Height" feature actually auto fit the row height?

  - by DanM

  For every generation of Excel I can remember (including 2010, which I'm using now), Excel's "Auto Size Row" features sometimes fails to actually auto size a row when the cell contains wrapped text. When it works properly, all the text is revealed and there is no additional space below the last line of text. When it fails, it adds extra space below the text. To make matters worse, what you see is not always what you get, i.e., text that appeared okay on screen gets cut off when it's printed. You also get different sizing depending on whether you are zoomed in/out or at actual size. Simple test case: Why is there a one-line gap after the text in cell A1 but in A2? (I double-checked that I applied Auto Fit Row Height to both rows. Zoom level is 100%.) Is there any known remedy for this without resorting to manually adjusting the row heights (which is not practical for more than a handful of rows)?

  Read the article

• Intel VT-x disappeared after upgrading to Windows 8

  - by StepTNT

  I've upgraded to Windows 8 some weeks ago (MSDNAA!) and today, while I was trying to run a VM, I've noticed that VT-x is disabled. Now, Hyper-V works without problems, as I've tried emulating Win7 and WP8; but VirtualBox says that VT-x is disabled and it can't run my VM. Just to double check, I've run Securable by GRC and the Intel utility and both says that I've got VT-x off. Here comes the problem: VT-x is ON in my BIOS, and it worked flawlessly before upgrading to Windows 8! Any kind of suggestion? EDIT: My CPU supports VT-x: http://ark.intel.com/products/52219

  Read the article

• Enter key on Mac OS X renames files instead of launching

  - by Matt

  On my Mac when I hit the "enter" key on a file on my desktop or in the finder, it enters the "rename file" mode. 1) How do you actually "launch" or "open" (i.e. double click) the file with only the keyboard? In Windows, the Enter key does this. 2) Is there a way to map the Enter key to do this in Mac instead of rename? Honestly, it makes little sense to me. I mean, how often do you rename something? Once, maybe. How often do you open something? Lots and lots of times.

  Read the article

• UI Automation / Retrieve File Extension / C#

  - by AP

  Dear all, I am tasked with a project that requires me to retreieve a specific file from a folder where I can only get an X and Y on the screen. While in XP I managed to use the fact that windows explorer is in essence a list view, and used the WM_HITTEST message to obtain information about the file, in Windows 7, this is not the case. To solve this problem, I am using UI Automation, which is a great tool for such things, only problem is that in the case, the windows handle I am looking at belongs to the desktop, and the desktop might have several files with the same name but with different extensions (and windows is configured to "hide extensions of known file types") UI automation does not return the extension back to me. I have tried many things, but I cannot find any robust solution which would give me 100% success. Has anyone tried this? successfully? Would appreciate any pointers. Many thanks,

  Read the article

< Previous Page | 196 197 198 199 200 201 202 203 204 205 206 207  | Next Page >