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  • Why the static data members have to be defined outside the class separately in C++ (unlike Java)?

    - by iammilind
    class A { static int foo () {} // ok static int x; // <--- needed to be defined separately in .cpp file }; I don't see a need of having A::x defined separately in a .cpp file (or same file for templates). Why can't be A::x declared and defined at the same time? Has it been forbidden for historical reasons? My main question is, will it affect any functionality if static data members were declared/defined at the same time (same as Java) ?

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  • Why don't we have an "unofficial" software center with all the PPAs?

    - by balki
    Many questions are answered simply with add this repository and install. I understand that Ubuntu developers cannot quickly verify all packages and make them available in official repositories. But is there an unofficial main repository or software center where developers can register their PPAs? Adding individual repositories is a pain and the update also takes longer as it has to check all the PPAs. Like we have alternative markets for android, it would be great if there are any popular alternative software sources that we can reasonably trust.

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  • Step by step guide to partition an external HDD in two file formats

    - by Mysterio
    I just purchased an external HDD (1TB) which I want to partition with two different file formats - NTFS and FAT32 (this partition is for my PS3 backups). At the moment it's a giant 943mb NTFS partition and at the end of the operation I want it to be like: 643 MB NTFS partition (as my main partition) 300 MB FAT32 partition (to house my PS3 backups) Please can someone help me out? Thanks in advance.

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  • How I Built My First Paid Website

    I have been a web master or a website administrator for around a year or so, initially I built two sites which were entirely made using a free domain registrar and a free web host. The free things are always got at the cost of quality. It applied here as well, the main problem I faced with free web host was that their server up time was very low, most of the times the server was down and another problem was server overload, since lots of websites were built on a single server, the load on the server was very...

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  • Selecting the Right Employee Management System

    Employees form the core asset of any company and the main factors in determining a company's success or growth. This makes it very important to invest in effective and well planned employee management system. Proper management of employee is determinant to the company as their contribution often decides the value of the company.

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  • An Unstoppable Force!

    - by TammyBednar
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Building a high-availability database platform presents unique challenges. Combining servers, storage, networking, OS, firmware, and database is complicated and raises important concerns: Will coordination between multiple SME’s delay deployment? Will it be reliable? Will it scale? Will routine maintenance consume precious IT-staff time? Ultimately, will it work? Enter the Oracle Database Appliance, a complete package of software, server, storage, and networking that’s engineered for simplicity. It saves time and money by simplifying deployment, maintenance, and support of database workloads. Plus, it’s based on Intel Xeon processors to ensure a high level of performance and scalability. Take a look at this video to compare Heather and Ted’s approach to building a server for their Oracle database! http://www.youtube.com/watch?v=os4RDVclWS8 If you missed the “Compare Database Platforms: Build vs. Buy” webcast or want to listen again to find out how Jeff Schulte - Vice President at Yodlee uses Oracle Database Appliance.

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  • Term for a single C++ endpoint/object file

    - by Qix
    I have heard several terms for a C++ "Codepoint" (which is what I've heard used the most often), or a .cpp file that is compiled into an object file. For instance, .cpp files can include other .cpp files (or any other file, really, so long as it compiles), but during compilation, there is really only one 'main' code file that is used/generated. I know there is a widely accepted term, I just can't recall what it is. What is the accepted term for the final .c/.cpp file used to generate an object file?

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  • Selecting The Right Employee Management System

    Employees form the core asset of any company and the main factors in determining a company?s success or growth. This makes it very important to invest in effective and well planned employee managemen... [Author: Alan Smith - Computers and Internet - June 04, 2010]

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  • JavaOne Session Report - Java ME SDK 3.2

    - by Janice J. Heiss
    Oracle Product Manager for Java ME SDK, Sungmoon Cho, presented a session, "Developing Java Mobile and Embedded Applications with Java ME SDK 3.2,” wherein he covered the basic new features of the Java ME Platform SDK 3.2, a state-of-the-art toolbox for developing mobile and embedded applications. The session began with a summary of the four main components of Java ME SDK. A device emulator allows developers to quickly run and test applications before commercialization. It supports CLDC/MIDP CLDC/IMP.NG and CLC/AGUI. A development environment assists writing, running debugging and deploying and enables on-device debugging. Samples provide developers with useful codes and frameworks. IDE Plugins – NetBeans and Eclipse – equip developers with CPU Profiler, Memory Monitor, Network Monitor, and Device Selector. This means that manual integration is no longer necessary. Cho then talked about the Java ME SDK’s on-device tooling architecture: * Java ME SDK provides an architecture ideal for on-device-debugging.* Device Manager plays the central role by managing different devices whether it is the emulator or a device that Oracle provides or recommends or a third party device as long as the devices have a Java Runtime that supports the protocol that is designated.* The Emulator provides an accurate emulation, since it uses the same code base used in Oracle’s Java ME runtime.* The Universal Emulator Interface (UEI) makes it easy for IDEs to detect the platform.He then focused on the Java ME SDK release highlights, which include: * Implementation and support for the new Oracle® Java Wireless Client 3.2 runtime and the Oracle® Java ME Embedded runtime. A full emulation for the runtime is provided.* Support for JSR 228, the Information Module Profile-Next Generation API (IMP-NG). This is a new profile for embedded devices. * A new Custom Device Skin Creator.* An Eclipse plugin for CLDC/MIDP.* Profiling, Network monitoring, and Memory monitoring are now integrated with the NetBeans profiling tools.* Java ME SDK Update CenterCho summarized the main features: IDE Integration (NetBeans and Eclipse) enables developers to write, run, profile, and debug their applications on their favorite IDE. CPU ProfilerThis enables developers to more quickly detect the hot spot and where CPU time is being used. They can double click the method to jump directly into the source code.Memory Monitor Developers can monitor objects and memory usage in real time.Debugger on the Emulator and DeviceDevelopers can run their applications step by step, and inspect the variables to pinpoint the problem. The debugging can take place either on the emulator or the device.Embedded Application DevelopmentIMP-NG, Device Access, Logging, and AMS API Support are now available.On-Device ToolingConnect your device to your computer, and run and debug the application right on your device.Custom Device Skin CreatorDefine your own device and test on an environment that is closest to your target device. The informative session concluded with a demo that showed more concretely how to apply the new features in Java ME SDK 3.2.

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  • W: Duplicate sources.list entry : You may want to run apt-get update to correct these problems [closed]

    - by Peter Schriver
    Possible Duplicate: W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages W: Duplicate sources.list entry http://us.archive.ubuntu.com/ubuntu/ quantal-updates/multiverse i386 Packages (/var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_quantal-updates_multiverse_binary-i386_Packages) W: You may want to run apt-get update to correct these problems I keep getting this message and sudo apt-get update doesn't fix it. I am running 64-bit 12.10. Is there a way to correct this problem?

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  • 3 tips for SQL Azure connection perfection

    - by Richard Mitchell
    One of my main annoyances when dealing with SQL Azure is of course the occasional connection problems that communicating to a cloud database entails. If you're used to programming against a locally hosted SQL Server box this can be quite a change and annoying like you wouldn't believe. So after hitting the problem again in http://cloudservices.red-gate.com  I thought I'd write a little post to remind myself how I've got it working, I don't say it's right but at least "it works on my machine" Tip...(read more)

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  • Android - Force Close - Null Pointer on Canvas?

    - by user22241
    Please bear with me. I have a very odd problem. Basically, my app so far, has 3 activities (a main splash screen, an 'options/menu' screen and the main app). If I follow the very specific steps oulined below, I get a 'null pointer exception' in the 2nd activity) and the app force closes...... Here are the steps: Start the app (a game based on Surfaceview), tap through to the third activity so the game is running, then hit the home key so the game is paused and put to the background, the activity/app is ended through DDMS in the SDK then restarted on the device (all OK so far), now if I hit the back key on the device twice in quick succession, it happens. All other sequence of events is fine, even to the point of pressing the back key, waiting for the previous activity to show, then hitting back again - all OK. Only when the back key is pressed twice in quick succession following all the above steps does the problem occur. I'm assuming that the canvas isn't ready as it's showing as 'null' when this happens, but I'm not sure why this is happening as surely it's happening when I'm trying to go back to activity 1, but the logcat shows the error in activity 2. if I stop the activity running my 'doDraw' method (which referenced the canvas), then all is OK - so I can safely assume it is the canvas causing the problem. Also, if I skip my first activity (which is a very basic full-screen button which just displays a splashscreen and waits for the user to tap the screen), and make my 2nd activity the launch activity, again, it is OK. this is the part of the code that I think is probably relevant: @Override public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) { vheight = this.getHeight(); vwidth = this.getWidth(); } @Override public void surfaceCreated(SurfaceHolder holder) { vheight = this.getHeight(); vwidth = this.getWidth(); this.viewWidth = vwidth; this.viewHeight = vheight; if (runthread==false){ if (preThread.getState()==Thread.State.TERMINATED){ preThread = new OptionsThread(thisholder, thiscontext, thishandler); } preThread.setRunning(true); preThread.start();} } @Override public void surfaceDestroyed(SurfaceHolder holder) { preThread.setRunning(false); //Stop the loop boolean retry = true; //Stop the thread while (retry) { try { preThread.join(); retry = false; } catch (InterruptedException e) { } } Thank you all for any help you can offer

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  • GLSL per pixel lighting with custom light type

    - by Justin
    Ok, I am having a big problem here. I just got into GLSL yesterday, so the code will be terrible, I'm sure. Basically, I am attempting to make a light that can be passed into the fragment shader (for learning purposes). I have four input values: one for the position of the light, one for the color, one for the distance it can travel, and one for the intensity. I want to find the distance between the light and the fragment, then calculate the color from there. The code I have gives me a simply gorgeous ring of light that get's twisted and widened as the matrix is modified. I love the results, but it is not even close to what I am after. I want the light to be moved with all of the vertices, so it is always in the same place in relation to the objects. I can easily take it from there, but getting that to work seems to be impossible with my current structure. Can somebody give me a few pointers (pun not intended)? Vertex shader: attribute vec4 position; attribute vec4 color; attribute vec2 textureCoordinates; varying vec4 colorVarying; varying vec2 texturePosition; varying vec4 fposition; varying vec4 lightPosition; varying float lightDistance; varying float lightIntensity; varying vec4 lightColor; void main() { vec4 ECposition = gl_ModelViewMatrix * gl_Vertex; vec3 tnorm = normalize(vec3 (gl_NormalMatrix * gl_Normal)); fposition = ftransform(); gl_Position = fposition; gl_TexCoord[0] = gl_MultiTexCoord0; fposition = ECposition; lightPosition = vec4(0.0, 0.0, 5.0, 0.0) * gl_ModelViewMatrix * gl_Vertex; lightDistance = 5.0; lightIntensity = 1.0; lightColor = vec4(0.2, 0.2, 0.2, 1.0); } Fragment shader: varying vec4 colorVarying; varying vec2 texturePosition; varying vec4 fposition; varying vec4 lightPosition; varying float lightDistance; varying float lightIntensity; varying vec4 lightColor; uniform sampler2D texture; void main() { float l_distance = sqrt((gl_FragCoord.x * lightPosition.x) + (gl_FragCoord.y * lightPosition.y) + (gl_FragCoord.z * lightPosition.z)); float l_value = lightIntensity / (l_distance / lightDistance); vec4 l_color = vec4(l_value * lightColor.r, l_value * lightColor.g, l_value * lightColor.b, l_value * lightColor.a); vec4 color; color = texture2D(texture, gl_TexCoord[0].st); gl_FragColor = l_color * color; //gl_FragColor = fposition; }

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  • What is the recommended way to output values to FBO targets? (OpenGL 3.3 + GLSL 330)

    - by datSilencer
    I'll begin by apologizing for any dumb assumptions you might find in the code below since I'm still pretty much green when it comes to OpenGL programming. I'm currently trying to implement deferred shading by using FBO's and their associated targets (textures in my case). I have a simple (I think :P) geometry+fragment shader program and I'd like to write its Fragment Shader stage output to three different render targets (previously bound by a call to glDrawBuffers()), like so: #version 330 in vec3 WorldPos0; in vec2 TexCoord0; in vec3 Normal0; in vec3 Tangent0; layout(location = 0) out vec3 WorldPos; layout(location = 1) out vec3 Diffuse; layout(location = 2) out vec3 Normal; uniform sampler2D gColorMap; uniform sampler2D gNormalMap; vec3 CalcBumpedNormal() { vec3 Normal = normalize(Normal0); vec3 Tangent = normalize(Tangent0); Tangent = normalize(Tangent - dot(Tangent, Normal) * Normal); vec3 Bitangent = cross(Tangent, Normal); vec3 BumpMapNormal = texture(gNormalMap, TexCoord0).xyz; BumpMapNormal = 2 * BumpMapNormal - vec3(1.0, 1.0, -1.0); vec3 NewNormal; mat3 TBN = mat3(Tangent, Bitangent, Normal); NewNormal = TBN * BumpMapNormal; NewNormal = normalize(NewNormal); return NewNormal; } void main() { WorldPos = WorldPos0; Diffuse = texture(gColorMap, TexCoord0).xyz; Normal = CalcBumpedNormal(); } If my render target textures are configured as: RT1:(GL_RGB32F, GL_RGB, GL_FLOAT, GL_TEXTURE0, GL_COLOR_ATTACHMENT0) RT2:(GL_RGB32F, GL_RGB, GL_FLOAT, GL_TEXTURE1, GL_COLOR_ATTACHMENT1) RT3:(GL_RGB32F, GL_RGB, GL_FLOAT, GL_TEXTURE2, GL_COLOR_ATTACHMENT2) And assuming that each texture has an internal format capable of contaning the incoming data, will the fragment shader write the corresponding values to the expected texture targets? On a related note, do the textures need to be bound to the OpenGL context when they are Multiple Render Targets? From some Googling, I think there are two other ways to output to MRTs: 1: Output each component to gl_FragData[n]. Some forum posts say this method is deprecated. However, looking at the latest OpenGL 3.3 and 4.0 specifications at opengl.org, the core profiles still mention this approach. 2: Use a typed output array variable for the expected type. In this case, I think it would be something like this: out vec3 [3] output; void main() { output[0] = WorldPos0; output[1] = texture(gColorMap, TexCoord0).xyz; output[2] = CalcBumpedNormal(); } So which is then the recommended approach? Is there a recommended approach at all if I plan to code on top of OpenGL 3.3? Thanks for your time and help!

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  • cannot install cinnimon 2.xx

    - by user207587
    Fetched 841 kB in 28s (29.3 kB/s) W: GPG error: http://packages.mate-desktop.org raring Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 68980A0EA10B4DE8 W: Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/raring/main/binary-i386/Packages 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead. userx@bw:~$ How do I fix that? How do I add a PUBKEY to get needed files to complete install of Cinnamon?

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  • The Smart Way to Buy Cheap Printer Cartridges

    If you think you';re spending too much on printer ink, you';re not alone. The main question ink jet printer owners constantly ask themselves is "where can I get cheap printer cartridges?" This is unde... [Author: Kathryn Dawson - Computers and Internet - May 19, 2010]

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  • Outsource SEO - A Strong Business Case

    Outsourcing became quite popular in the 1990's as companies raced to reduce costs by moving non-essential functions out of the corporate cost structure. One of the main methods for doing this was to outsource. The basic business case to move any function to a subcontract was quite simple. Subcontractors that focus only on one thing have probably developed a deeper technical understanding of the process and are more effective. Economies of scale allow the outsourcer to provide the same (or higher quality) service at a lower price.

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  • A completely free and open programming language

    - by XGouchet
    With Oracle vs Google trial, it seems that Java is not entirely Open and free (as free software) as I expected. Although there exists completely free/open JVM, it's hard to know what is a copyright infringement with Java, and what is not. So I'd like to know if there is a completely Open and free language with open and free IDE (Eclipse-like) out there, Object Oriented if possible, and able to make window-based applications for the main OSs (Linux, Mac, Windows).

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  • Vital Stages of Web Development

    When it comes to web designing and development simpler is better. The main purpose a website is to give your business a face value, increase your profits, and enhance your client base. Web site acts a bridge between your business in the physical world and on the Internet. So to safeguard your online identity, below are a few points to be kept in while designing a website.

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  • Kaspersky crée son propre système d'exploitation sécurisé, pour protéger les systèmes critiques des attaques sophistiquées

    Kaspersky crée son propre système d'exploitation sécurisé Pour protéger les systèmes critiques des attaques sophistiquées Devant la complexité sans précédent des dernières cyberattaques massives, Kaspersky Labs décide de prendre les choses en main et propose son propre OS sécurisé. La compagnie engage son expertise et son expérience en matière de sécurité pour concevoir et déployer un système d'exploitation sécurisé pour des systèmes jugés d'une « importance capitale ». Ceci étant dans le but de fournir une couche supplémentaire de protection contre malwares et autres attaques intelligentes. [IMG]http://idelways.developpez.com/news/images/kaspersky-lab.jpg[/IMG]

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  • Search Engine Optimizing

    Search Engine Optimization is a process by which a web site is improved so that it can be more easily found by search engines, rank higher and be found by its target audience. The main components to SEO are: keyword analysis, content analysis, title and meta tags, relevant link building, search engine submission, and maintenance. Below are steps in the process.

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