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  • Syntax proposition

    - by Knowing me knowing you
    I wonder if syntax as follows would be helpful in your opinion as a code readability improvent and self-commenting of code: std::map<std::string name, std::vector<int> scores> myMap; In this example it clearly says and no other comment is needed, what for we are using myMap variable. Looking forward to your opinions.

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  • do I need to close an audio Clip?

    - by Michael
    have an application that processes real-time data and is supposed to beep when a certain event occurs. The triggering event can occur multiple times per second, and if the beep is already playing when another event triggers the code is just supposed to ignore it (as opposed to interrupting the current beep and starting a new one). Here is the basic code: Clip clickClip public void prepareProcess() { super.prepareProcess(); clickClip = null; try { clipFile = new File("C:/WINDOWS/Media/CHIMES.wav"); ais = AudioSystem.getAudioInputStream(clipFile); clickClip = AudioSystem.getClip(); clickClip.open(ais); fileIsLoaded = true; } catch (Exception ex) { clickClip = null; fileIsLoaded = false; } } public void playSound() { if (fileIsLoaded) { if ((clickClip==null) || (!clickClip.isRunning())) { try { clickClip.setFramePosition(0); clickClip.start(); } catch (Exception ex) { System.out.println("Cannot play click noise"); ex.printStackTrace(); } } } The prepareProcess method gets run once in the beginning, and the playSound method is called every time a triggering event occurs. My question is: do I need to close the clickClip object? I know I could add an actionListener to monitor for a Stop event, but since the event occurs so frequently I'm worried the extra processing is going to slow down the real-time data collection. The code seems to run fine, but my worry is memory leaks. The code above is based on an example I found while searching the net, but the example used an actionListener to close the Clip specifically "to eliminate memory leaks that would occur when the stop method wasn't implemented". My program is intended to run for hours so any memory leaks I have will cause problems. I'll be honest: I have no idea how to verify whether or not I've got a problem. I'm using Netbeans, and running the memory profiler just gave me a huge list of things that I don't know how to read. This is supposed to be the simple part of the program, and I'm spending hours on it. Any help would be greatly appreciated! Michael

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  • Alternative to before </body> tag inline Javascript

    - by Mohammad
    I know inline Javascript is frowned upon and with the new on-the-fly Javascript compressors that check for idle/unused function usage and omit the unused code, it seems good practice to have all your Javascript in an external file. My question is, in situations like FOUC (flash of unstyled content) which usually require little snippets of code right before the closing </body> tag, is there a JQuery resolution that would serve the same purpose, but from a remote Javascript file linked in the <head> of the document?

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  • PHP Verification Codes CAPTCHA

    - by Juddling
    I run a game website so I have many users logged in and they can do certain things once every two minutes. I have a CAPTCHA system in places, and for some things it will always ask for a code, and for other things, it will ask once every 10 minutes. I have had some players use the auto submit feature on Opera, and my CAPTCHA system does stop them. My question is, how can I minimise the amount of times I am asking for a code, but still stop people using this auto-submit?

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  • javascript scoping in for loop

    - by user121196
    consider the following javascript code, console.log always prints "focus 1" where 2 is the input length. how should I rewrite the code to prints the looping variable i correctly for (var i = 0; i < inputs.length; i++) { var curIndex = i; inputs[i].addListener('focus', function(thisfield, evt){ console.log('focus '+curIndex); }); }

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  • require 'rubygems'

    - by demas
    I have seen many samples of Ruby code with this line (for example, http://www.sinatrarb.com/). What is purpose of this require? # require 'rubygems' require 'sinatra' get '/hi' do "Hello world!" end In all cases the code works without this line.

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  • READING WEBSITE CONTENTS JAVA

    - by Sahil Manchanda
    IM DEVELOPING AN ANDROID APPLICATION WHERE in a website i PROGRAMMATICALLY submit data into search box and retrieve results by JAVA. i get the data by using URLConnect JAVA. i get the source code ie html code...... Urlconnection a = .connect to host getinputstream read data i use these functions now if the site has content like: sahil 3/5 patel chowk 965955 since these details will be inside html tags i want to extract this information . any idea

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  • ATL and types from scrrun.dll

    - by MaxFX
    Hello. I have interface in ATL project which must contains member with parameter of Scripting::IDictionary** but in MIDL file with description of my interface it's not possible because Scripting library is not presented in default library. I always have scrrun.tlb and trying to use it in MIDL but it's not work Code is here: midl-code

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  • C# tableadapter add/update/delete

    - by ChrisMuench
    I'm using the table adapter in C# where visual studio generates the code for you. I have inserts and updates working just fine using the following code. However when trying to delete using the .update it gives me the following error. Update requires a valid DeleteCommand when passed DataRow collection with deleted rows. this.workersTableAdapter.Update(this.nursery_dbDataSet_workers.workers);

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  • cmake source and out-of-source navigation

    - by idimba
    Hi, cmake advises to use out-of-source builds. While in general I like the idea I find it not comfortable to navigate from out-of-source sub directory to the corresponding source directory. I frequently need the code to perform some actions with code (e.g. grep, svn command etc.). Is there an easy way in shell to navigate from out-of-source sub directory to the corresponding source directory? Thanks Dima

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  • testing a shellcode...

    - by kmitnick
    hey folks, I have this piece of code to test a shellcode but I don't understand it so can anyone explain it to me??? forget about the assembly shellcode, what i want to understand is the C code char shellcode[] = "..."; int main(int argc, char **argv) { int (*func)(); func = (int (*)()) shellcode; (int)(*func)(); } I mean everything, what is the empty () ,please explain it as if you are explaining it to a beginner thnx all

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  • Issue using Visual Studio 2010 compiled C++ DLL in Windows 2000

    - by Jon Tackabury
    I have a very simple DLL written in unmanaged C++ that I access from my application. I recently switch to Visual Studio 2010, and the DLL went from 55k down to 35k with no code changes, and now it will no longer load in Windows 2000. I didn't change any code or compiler settings. I have my defines setup for 0x0500, which should include Windows 2000 support. Has anyone else run into this, or have any ideas of what I can do?

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  • Why I cannot copy install.wim from Windows 7 ISO to USB (in linux env)

    - by fastreload
    I need to make a USB bootable disk of Windows 7 ISO. My USB is formatted to NTFS, ISO is not corrupt. I can copy install.wim elsewhere but I cannot copy it to USB. I even tried rsync. rsync error sources/install.wim rsync: writefd_unbuffered failed to write 4 bytes to socket [sender]: Broken pipe (32) rsync: write failed on "/media/52E866F5450158A4/sources/install.wim": Input/output error (5) rsync error: error in file IO (code 11) at receiver.c(322) [receiver=3.0.8] Stat for windows.vim File: `X15-65732 (2)/sources/install.wim' Size: 2188587580 Blocks: 4274600 IO Block: 4096 regular file Device: 801h/2049d Inode: 671984 Links: 1 Access: (0664/-rw-rw-r--) Uid: ( 1000/ umur) Gid: ( 1000/ umur) Access: 2011-10-17 22:59:54.754619736 +0300 Modify: 2009-07-14 12:26:40.000000000 +0300 Change: 2011-10-17 22:55:47.327358410 +0300 fdisk -l Disk /dev/sdd: 8103 MB, 8103395328 bytes 196 heads, 32 sectors/track, 2523 cylinders, total 15826944 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xc3072e18 Device Boot Start End Blocks Id System /dev/sdd1 * 32 15826943 7913456 7 HPFS/NTFS/exFAT hdparm -I /dev/sdd: SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ATA device, with non-removable media Model Number: UF?F?A????U]r???U u??tF?f?`~ Serial Number: ?@??~| Firmware Revision: ????V? Media Serial Num: $I?vnladip raititnot baelErrrol aoidgn Media Manufacturer: o eparitgns syetmiM Standards: Used: unknown (minor revision code 0x0c75) Supported: 12 8 6 Likely used: 12 Configuration: Logical max current cylinders 17218 0 heads 0 0 sectors/track 128 0 -- Logical/Physical Sector size: 512 bytes device size with M = 1024*1024: 0 MBytes device size with M = 1000*1000: 0 MBytes cache/buffer size = unknown Capabilities: IORDY(may be)(cannot be disabled) Queue depth: 11 Standby timer values: spec'd by Vendor R/W multiple sector transfer: Max = 0 Current = ? Recommended acoustic management value: 254, current value: 62 DMA: not supported PIO: unknown * reserved 69[0] * reserved 69[1] * reserved 69[3] * reserved 69[4] * reserved 69[7] Security: Master password revision code = 60253 not supported not enabled not locked not frozen not expired: security count not supported: enhanced erase 71112min for SECURITY ERASE UNIT. 172min for ENHANCED SECURITY ERASE UNIT. Integrity word not set (found 0xaa55, expected 0x80a5)

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  • Does mprotect flush the instruction cache on ARM Linux?

    - by Adam Goode
    I am writing a JIT on ARM Linux that executes an instruction set that contains self-modifying code. The instruction set does not have any cache flush instructions (similar to x86 in that respect). If I write out some code to a page and then call mprotect on that page, is that sufficient to invalidate the instruction cache? Or do I also need to use the cacheflush syscall on those pages?

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  • Rails: how can I access the request object outside a helper or controller?

    - by rlandster
    In my application_helper.rb file I have a function like this: def internal_request? server_name = request.env['SERVER_NAME'] [plus more code...] end This function is needed in controllers, model, and views. So, I put this code in a utility function file in the lib/ directory. However, this did not work: I got complaints about request not being defined. How can I access the request object in a file in the lib/ directory?

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  • Does Apple approve a kind of mark-up language for AppStore?

    - by Eonil
    AppStore now rejects applications made with non-Apple like languages. (with modified contract) However, is it allowed using declarative mark-up language formed with XML? (like XHTML, but different schema) The declarative mark-up is a code too, but not a script or logic code. Just a passive, static data, but forms some layout and part of an application logic.

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  • Coding without Grock. Is it wrong?

    - by OldCurmudgeon
    Should a professional programmer allow themselves to write code without completely understanding the requirements? In my 30+ years as a programmer I must have written many thousands of lines of code without completely understanding what is required of me at the time. In most cases the results were rubbish that should have been discarded. Every other industry that employs professionals has systems to root out such behavior. Ours does not. Is this right?

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  • Upload a file to a web server in cocoa

    - by Cam
    Hello, I was wondering the best way to upload file to a web server in cocoa. I cant seem to get my curl code to work even though it works when run from terminal. curl code: system(@"curl -T /file.txt http://webserevertouploadto.com") Thanks for any help

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  • Debugging InProc COM Dll

    - by Tony
    I have a project in VC++ 6.0 where there is an exe and a InProc COM Dll. I want to be able to place a breakpoint somewhere in the InProc COM DLL, but VC++ won't allow me to set a breakpoint. I have the source code for this DLL, however I cannot figure out how I can place a breakpoint in the code and the debug it? Can someone help me.

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  • How to fix javascript and raphaeljs memory leak?

    - by luc
    Hello all, I have the following code using RapahelJs running in IE. This code cause a memory leak and I don't know what is wrong. Does anybody can help me and give some advices in the usage of raphaeljs and memory leaks. for (i=0; i<2000; i++) { var r = paper.rect(100, 100, 30, 30); r.remove(); r = null; } Thanks in advance

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  • Drawing a Dragons curve in Python

    - by Connor Franzoni
    I am trying to work out how to draw the dragons curve, with pythons turtle using the An L-System or Lindenmayer system. I no the code is something like the Dragon curve; initial state = ‘F’, replacement rule – replace ‘F’ with ‘F+F-F’, number of replacements = 8, length = 5, angle = 60 But have no idea how to put that into code.

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  • Shake to open view modally

    - by Vivas
    Hi, I have my 'shake' working fine (using motionEnded), based off of Apple's GLPaint code. When the user shakes the device (running 3.0 and up) I want to open a view controller modally using presentModalViewController. In my appdelegate I have the notification (as per the GLPaint sample code): [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(shakeToOpenHiddenScreen) name:@"shake" object:nil]; In my shakeToOpenHiddenScreen I just want to open view 'x' modally but I don't think that my appdelegate will respond to presentModalViewController. Is there a way around this?

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  • Help needed regarding CLCorelocation

    - by yogendra singh
    Hello everybody, i am developing a GPS application in which i needs to track the speed of the device/iphone ,i am using the CLCorelocation API's Locate me referral code provided by Apple my problem is that the LocationManager does not updates the current latitude and longitudes thus i am unable to calculate the distance as well as the speed of the device/iphone. Any kinds of suggestions/code will be highly appreciated please suggest me if i can do something with the Mapkit framework introduced in the sdk 3.0. thanks in advance

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