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  • Boost::Serialization Mpi Sending array of user defined types

    - by Noman Javed
    I want to send my Array class using boost Mpi template class Array { private: int size; T* data; public: // constructors + other stuff }; Here T can be any built in type or user defined type. Suppose I have a class complex struct complex { std::vector real_imag; // contain two elements }; So the question is how can I send Array using Boost::Mpi + serialization. Thanks in anticipation Regards Noman

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  • Jruby rspec to be run parallely

    - by Priyank
    Hi. Is there something like Spork for Jruby too? We want to parallelize our specs to run faster and pre-load the classes while running the rake task; however we have not been able to do so. Since our project is considerable in size, specs take about 15 minutes to complete and this poses a serious challenge to quick turnaround. Any ideas are more than welcome. Cheers

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  • Is there a generic class to write structured Text Files?

    - by Burnsys
    I have several projects that need to write structured Textfiles, some with fixed size fields, other delimited by characters. Is there a .net class that could be used for that? I know there is a "Microsoft.VisualBasic.FileIO.TextFieldParser" that is useful for reading textfiles, i am actually searching for a ""Microsoft.VisualBasic.FileIO.TextFieldWriter" Related: http://stackoverflow.com/questions/34182/reading-text-files-using-net

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  • Pause-able download

    - by zubin71
    Hello, I have an Apache server running which hosts a php web application. Also, its provides provisions for downloading a file of size around 900MB from it. However, while testing the application I found out that its not possible to pause the downloads and resume them later on. Could someone help me? Is it an apache property I must change?

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  • How to configure the framesize using AudioUnit.framework on iOS

    - by Piperoman
    I have an audio app i need to capture mic samples to encode into mp3 with ffmpeg First configure the audio: /** * We need to specifie our format on which we want to work. * We use Linear PCM cause its uncompressed and we work on raw data. * for more informations check. * * We want 16 bits, 2 bytes (short bytes) per packet/frames at 8khz */ AudioStreamBasicDescription audioFormat; audioFormat.mSampleRate = SAMPLE_RATE; audioFormat.mFormatID = kAudioFormatLinearPCM; audioFormat.mFormatFlags = kAudioFormatFlagIsPacked | kAudioFormatFlagIsSignedInteger; audioFormat.mFramesPerPacket = 1; audioFormat.mChannelsPerFrame = 1; audioFormat.mBitsPerChannel = audioFormat.mChannelsPerFrame*sizeof(SInt16)*8; audioFormat.mBytesPerPacket = audioFormat.mChannelsPerFrame*sizeof(SInt16); audioFormat.mBytesPerFrame = audioFormat.mChannelsPerFrame*sizeof(SInt16); The recording callback is: static OSStatus recordingCallback(void *inRefCon, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList *ioData) { NSLog(@"Log record: %lu", inBusNumber); NSLog(@"Log record: %lu", inNumberFrames); NSLog(@"Log record: %lu", (UInt32)inTimeStamp); // the data gets rendered here AudioBuffer buffer; // a variable where we check the status OSStatus status; /** This is the reference to the object who owns the callback. */ AudioProcessor *audioProcessor = (__bridge AudioProcessor*) inRefCon; /** on this point we define the number of channels, which is mono for the iphone. the number of frames is usally 512 or 1024. */ buffer.mDataByteSize = inNumberFrames * sizeof(SInt16); // sample size buffer.mNumberChannels = 1; // one channel buffer.mData = malloc( inNumberFrames * sizeof(SInt16) ); // buffer size // we put our buffer into a bufferlist array for rendering AudioBufferList bufferList; bufferList.mNumberBuffers = 1; bufferList.mBuffers[0] = buffer; // render input and check for error status = AudioUnitRender([audioProcessor audioUnit], ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, &bufferList); [audioProcessor hasError:status:__FILE__:__LINE__]; // process the bufferlist in the audio processor [audioProcessor processBuffer:&bufferList]; // clean up the buffer free(bufferList.mBuffers[0].mData); //NSLog(@"RECORD"); return noErr; } With data: inBusNumber = 1 inNumberFrames = 1024 inTimeStamp = 80444304 // All the time same inTimeStamp, this is strange However, the framesize that i need to encode mp3 is 1152. How can i configure it? If i do buffering, that implies a delay, but i would like to avoid this because is a real time app. If i use this configuration, each buffer i get trash trailing samples, 1152 - 1024 = 128 bad samples. All samples are SInt16.

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  • False sense of security with `snprintf_s`

    - by xtofl
    MSVC's "secure" sprintf funcions have a template version that 'knows' the size of the target buffer. However, this code happily paints 567890 over the stack after the end of bytes... char bytes[5]; _snprintf_s( bytes, _TRUNCATE, "%s", "1234567890" ); Any idea what I do wrong, or is this a known bug? (I'm working in VS2005 - didn't test in 2008 or 2010)

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  • Positioning Text Triggered by a Function

    - by John
    Hello, I would like the text below classed with "logintocomment" to appear 30 px below the bottom of the table classed with "commentecho." Instead, with the CSS and code below, the text classed with "logintocomment" is appearing at the bottom of the browser window. Any idea how I can make it do what I want? Thanks in advance, John In index file: include "comments.php"; include "commentformonoff.php"; In the file comments.php: echo "<table class=\"commentecho\">"; The file: commentformonoff.php: <?php if (!isLoggedIn()) { if (isset($_POST['cmdlogin'])) { if (checkLogin($_POST['username'], $_POST['password'])) { show_commentbox($submissionid, $submission, $url, $submittor, $submissiondate, $countcomments, $dispurl); } else { echo "<div class='logintocomment'>Login to comment</div>"; } } else { echo "<div class='logintocomment'>Login to comment</div>"; } } else { show_commentbox($submissionid, $submission, $url, $submittor, $submissiondate, $countcomments, $dispurl); } ?> The CSS: table.commentecho { margin-top: 230px; margin-left: 30px; text-align: left; font-family: "Times New Roman", Times, serif; font-weight: normal; font-size: 15px; color: #000000; width: 600px; table-layout:fixed; background-color: #FFFFFF; border: 2px #FFFFFF; border-collapse: collapse; border-spacing: 2px; padding: 1px; text-decoration: none; vertical-align: text-bottom; margin-bottom: 30px; } table.commentecho td { border: 2px solid #fff; text-align: left; height: 18px; overflow:hidden; } table.commentecho td a{ padding: 2px; color: #000000; text-decoration: none; overflow:hidden; height: 18px; } table.commentecho td a:hover{ background-color: #FFFFFF; padding: 2px; color: #FF0000; text-decoration: none; overflow:hidden; height: 18px; } .logintocomment { margin-top: 30px; margin-left: 30px; width:250px; text-align: left; margin-bottom:3px; padding:0px; font-family:Arial, Helvetica, sans-serif; font-size: 20px; color:#000000; }

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  • How to have a transparent number on top of a winform?

    - by Joan Venge
    So I have a winform that has some winforms controls on it. But in the center of it, I want to show a transparent number on top of everything. Say 60 pixels size. I tried a label and even tried to create a custom control but the transparency didn't work. Any ideas how to do this? This number will change programmatically at runtime several times.

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  • outofmemory error for Windows 2008 server(64 bit) and JBOSS 5.0.1,64bit jvm

    - by Amar dhole
    Hi All, I have ear deployed in jboss 5.0.1, on windows 2008 which is 64 bit machine and we are using 64jvm, with this combination our VFS temp size increases a lot eventually all our physical hard drive space is used by replicating files. but if we change our JVm from 64 to 32 every thing looks ok. does any one one what is reason ?and possible solution as we want ot use 64bit jvm. Thanks

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  • Equivalent of valign=center for <p> with css

    - by Brian
    I have the following code on my page: <p align="justify" style="font-size:10pt;display:block;height:200px;vertical-align:middle;"> Content </p> I want the text to be vertically aligned in the center of the p tag, but vertical-align:middle doesn't seem to be doing the trick. Is there a way to do this?

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  • BigInteger.pow(BigInteger) ?

    - by PeterW
    I'm playing with numbers in Java, and want to see how big a number I can make. It is my understanding that BigInteger can hold a number of infinite size, so long as my computer has enough Memory to hold such a number, correct? My problem is that BigInteger.pow accepts only an int, not another BigInteger, which means I can only use a number up to 2,147,483,647 as the exponent. Is it possible to use the BigInteger class as such? BigInteger.pow(BigInteger) Thanks.

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  • How to increment counters based on a printed array

    - by Sam Liew
    I managed to developed a simple board of 5x5 using random numbers and array. Big achievement for someone like me! :) Now I have to increment the counters depending on the frequency of the numbers. If the value within 0-49 is printed..then nCounter++ If the value within 50-75 is printed..then pCounter++ something like that. The problem is that I don't know how to increase the counters based on the printed board. Here is the code: #include <stdio.h> #include <stdlib.h> #include <time.h> int main() { //Initialize Variables int randomNumber; int rows; int columns; int hdCounter =0; int hCounter = 0; int cCounter = 0; int pCounter = 0; int nCounter = 0; //Declare board size int board[5][5]; //size of board is 5 x 5 //Create the random number generator seed srand(time(NULL)); //Assign the random numbers from 1 - 25 into variable randomNumber //Create the rows for the board for ( rows = 1; rows <= 5 ; rows++ ) { //Create the colimns for the board for ( columns = 1; columns <= 5 ; columns++ ) { //Assign variable randomNumber into variable board randomNumber = rand() %100 + 1; board[rows][columns] = randomNumber; //print the board printf("%d\t", board[rows][columns]); //calculate the frequency of numbers on the printed board if (randomNumber >= 85 && randomNumber <= 100 ) hdCounter++; else if ( randomNumber >= 75 ) hCounter++; else if ( randomNumber >= 65 ) cCounter++; else if ( randomNumber >= 50 ) pCounter++; else if ( randomNumber >= 1 ) nCounter++; else continue; } //Newline after the end of 5th column. printf("\n\n"); } printf( "N \t P \t C \t H \t HD\n\n" ); printf("%d \t %d \t %d \t %d \t %d \t", nCounter, pCounter, cCounter, hCounter, hdCounter); }//end main I tried replacing randomNumber in the if-statement with board[rows][columns] but I seem to get the same undesired results.

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  • Tunning up Activity with dialog theme

    - by Gaks
    I need to launch a Dialog from home screen widget, so I created an Activity with android:theme="@android:style/Theme.Dialog" The problem is, that I would like make it look like standard dialog window ( buttons on the gray background, font and text size, paddings etc), like here: This is how my "dialog" Activity looks like: Is there some standard way (theme?) to make it look like standard system dialogs? Or do I have to imitate it in my own layout?

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  • How to get a ListView (or DataGrid) work with TextWrapping (WPF)

    - by Aks1
    I mean, i have one of this controls and text inside one of it's columns. Usually if user changes column size, it's just cutting text. If I'm trying to use template with textblock or textbox and set TextWrapping="Wrap" inside of the template - it's really doesn't change anything. What's the way out? *And yes, I searched before asking, and found similar questions on this site. But without answer ((( *

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  • Remove gap in wordpress posts in IE

    - by Martin Ingolf
    I'm using a modified version of Modern Clix by Rodrigo Galindez on my website, and I've encountered a problem with gaps on top of every one of my posts in IE. The gap is the size of my left-hand sidebar and doesn't appear in firefox. Ex.: http://martiningolf.dk/?page%5Fid=273 If anyone knows how to solve this problem, It'd make me happy.

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  • Add and Subtract 128 Bit Integers in C(++)

    - by Billy ONeal
    Hello :) I'm writing a compressor for a long stream of 128 bit numbers. I would like to store the numbers as differences -- storing only the difference between the numbers rather than the numbers themselves because I can pack the differences in fewer bytes because they are smaller. However, for compression then I need to subtract these 128 bit values, and for decompression I need to add these values. Maximum integer size for my compiler is 64 bits wide. Anyone have any ideas for doing this efficiently? Billy3

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  • Good Postgres graphical client for Windows

    - by alex
    The name pretty much says it all. Right now I'm using Squirrel - it crashes frequently and suffers from memory problems (I've tried increasing the heap size). I don't need anything particularly fancy or full-featured - just something that won't take up 2.4 GB of RAM to store a 1.5 million line, 8 column result set.

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  • drag to pan on an UserControl

    - by Matías
    Hello, I'm trying to build my own "PictureBox like" control adding some functionalities. For example, I want to be able to pan over a big image by simply clicking and dragging with the mouse. The problem seems to be on my OnMouseMove method. If I use the following code I get the drag speed and precision I want, but of course, when I release the mouse button and try to drag again the image is restored to its original position. using System.Drawing; using System.Windows.Forms; namespace Testing { public partial class ScrollablePictureBox : UserControl { private Image image; private bool centerImage; public Image Image { get { return image; } set { image = value; Invalidate(); } } public bool CenterImage { get { return centerImage; } set { centerImage = value; Invalidate(); } } public ScrollablePictureBox() { InitializeComponent(); SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer, true); Image = null; AutoScroll = true; AutoScrollMinSize = new Size(0, 0); } private Point clickPosition; private Point scrollPosition; protected override void OnMouseDown(MouseEventArgs e) { base.OnMouseDown(e); clickPosition.X = e.X; clickPosition.Y = e.Y; } protected override void OnMouseMove(MouseEventArgs e) { base.OnMouseMove(e); if (e.Button == MouseButtons.Left) { scrollPosition.X = clickPosition.X - e.X; scrollPosition.Y = clickPosition.Y - e.Y; AutoScrollPosition = scrollPosition; } } protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); e.Graphics.FillRectangle(new Pen(BackColor).Brush, 0, 0, e.ClipRectangle.Width, e.ClipRectangle.Height); if (Image == null) return; int centeredX = AutoScrollPosition.X; int centeredY = AutoScrollPosition.Y; if (CenterImage) { //Something not relevant } AutoScrollMinSize = new Size(Image.Width, Image.Height); e.Graphics.DrawImage(Image, new RectangleF(centeredX, centeredY, Image.Width, Image.Height)); } } } But if I modify my OnMouseMove method to look like this: protected override void OnMouseMove(MouseEventArgs e) { base.OnMouseMove(e); if (e.Button == MouseButtons.Left) { scrollPosition.X += clickPosition.X - e.X; scrollPosition.Y += clickPosition.Y - e.Y; AutoScrollPosition = scrollPosition; } } ... you will see that the dragging is not smooth as before, and sometimes behaves weird (like with lag or something). What am I doing wrong? I've also tried removing all "base" calls on a desperate movement to solve this issue, haha, but again, it didn't work. Thanks for your time.

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  • PostGreSQL load increasing over time, why?

    - by TravisO
    It's a CentOS server (I don't know the specs) and just before anybody states the obvious, keep in mind these mitigating factors: the server does a nightly VACUUM job all the tables are indexed it's pretty much read only (meaning the DBs are not increasing in size) the number of queries being ran has been the same every month Here's a graph of the server load:

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