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  • Need help for this syntax: "#define LEDs (char *) 0x0003010"

    - by Noge
    I'm doing programming of a softcore processor, Nios II from Altera, below is the code in one of the tutorial, I manage to get the code working by testing it on the hardware (DE2 board), however, I could not understand the code. #define Switches (volatile char *) 0x0003000 #define LEDs (char *) 0x0003010 void main() { while (1) *LEDs = *Switches; } What I know about #define is that, it is either used to define a constant, or a macro, but why in the above code, there are casting like, (char *) 0x0003010, in #define? why the 2 constants, Switches and LEDs act like a variable instead of a constant? Thanks in advance !

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  • Bash variable kills script execution

    - by Kyle Terry
    Sorry if this is better suited at serverfault, but I think it learns more towards the programming side of things. I have some code that's going into /etc/rc.local to detect what type of touch screen monitor is plugged in and changes out the xorg.conf before launching X. Here is a small snippet: CURRENT_MONITOR=`ls /dev/usb | grep 'egalax_touch\|quanta_touch'` case $CURRENT_MONITOR in '') CURRENT_MONITOR='none' ;; esac If one of those two touch screens is plugged in, it works just fine. If any other monitor is plugged in, it stops at the "CURRENT_MONITOR=ls /dev/usb | grep 'egalax_touch\|quanta_touch'." For testing I touched two files. One before creating CURRENT_MONITOR and one after CURRENT_MONITOR and only file touched before is created. I'm not a bash programmer so this might be something very obvious.

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  • make mongrel_rails (localhost:3000) visible to a virtual machine

    - by Max Williams
    I develop rails in ubuntu and i just set up a virtualbox windows xp virtual machine for IE testing. I'd like to be able to run mongrel_rails in ubuntu and then jump into the vm to check it out, so i can jump back, make a change, jump into the vm again, reload the page and test it, etc. Is this possible? In this sort of situation in the past i've had to set up an apache server on my dev machine and run mongrel under that, in order to get an externally visible (ie visible to my local network) ip address that i then paste into the address bar of IE in the vm. Is this really necessary? Is there a simpler way? Can i do something with my /etc/hosts or sites-available files to just make up some arbitrary network address which points to localhost:3000 in ubuntu? Or something? thanks, max

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  • Int PK inner join Vs Guid PK inner Join on SQL Server. Execution plan.

    - by bigb
    I just did some testing for Int PK join Vs Guid PK. Tables structure and number of records looking like that: Performance of CRUD operations using EF4 are pretty similar in both cases. As we know Int PK has better performance rather than strings. So SQL server execution plan with INNER JOINS are pretty different Here is an execution plan. As i understand according with execution plan from attached image Int join has better performance because it is taking less resources for Clustered index scan and it is go in two ways, am i right? May be some one may explain this execution plan in more details?

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  • Trying to make my leaflet map work on internet explorer

    - by user1270657
    I have been tearing my hair out of late trying to get my web map working on internet explorer. It's working flawlessly on every other major browser but none of the content will load in IE. Anyone out there who's good at browser testing that could help out? I know the leaflet javascript api, which I'm using for this project, supports IE in theory. In practice this isn't working out too well... Link to a live version of the web map: https://mywebspace.wisc.edu/axler/SLRE_Deep_Map/index2.html Let me know if there is anything else I could add that would help in deciphering this problem... Thanks!

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  • How to anchor with <option> tag in HTML?

    - by blub
    I'm trying to anchor a div with an option tag but it doesn't work, what´s wrong with my code? Here´s the anchor snippet <select> <option value="#b1">1 test</option> </select> <br /> <br /> <br /> <br /> <br /> <br /> <div id="b1">Testing!</div>

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  • How to keep Hibernate mapping use under control as requirements grow

    - by David Plumpton
    I've worked on a number of Java web apps where persistence is via Hibernate, and we start off with some central class (e.g. an insurance application) without any time being spent considering how to break things up into manageable chunks. Over time as features are added we add more mappings (rates, clients, addresses, etc.) and then amount of time spent saving and loading an insurance object and everything it connects to grows. In particular you get close to a go-live date and performance testing with larger amounts of data in each table is starting to demonstrate that it's all too slow. Obviously there are a number of ways that we could attempt to partition things up, e.g. map only the client classes for the client CRUD screens, etc., which would have been better to get in place earlier rather than trying to work it in at the end of the dev cycle. I'm just wondering if there are recommendations about ways to handle/mitigate this.

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  • Adding icon to gcc executable and opening in terminal.

    - by sfactor
    I made a program to connect to a device via Bluetooth and send the data to the web using pure C in gcc. I won't be able to implement any GUI portion in the code right now but I need to deploy it to test users for testing. I want to have the executable with an icon so that a user can click on the executable and the program starts in the terminal. How do I add an icon to the executable and start the program in the terminal? Sorry I failed to mention before that its in Ubuntu Linux

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  • Bash variable kills script execusion

    - by Kyle Terry
    Sorry if this is better suited at serverfault, but I think it learns more towards the programming side of things. I have some code that's going into /etc/rc.local to detect what type of touch screen monitor is plugged in and changes out the xorg.conf before launching X. Here is a small snippet: CURRENT_MONITOR=`ls /dev/usb | grep 'egalax_touch\|quanta_touch'` case $CURRENT_MONITOR in '') CURRENT_MONITOR='none' ;; esac If one of those two touch screens is plugged in, it works just fine. If any other monitor is plugged in, it stops at the "CURRENT_MONITOR=ls /dev/usb | grep 'egalax_touch\|quanta_touch'." For testing I touched two files. One before creating CURRENT_MONITOR and one after CURRENT_MONITOR and only file touched before is created. I'm not a bash programmer so this might be something very obvious.

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  • MVVM Light is too fast :)

    - by Hikari
    Hello, I have a simple WM7 Page with textbox. Futher, I assigned EventToCommand (RelayCommand) to this textbox, reacting to TextChanged event. For testing pourposes I made additional method TextBox_TextChanged in page's code behing. Both command and TextBox_TextChanged print a message box with the textbox content. Initial value of textbox is ABC. Then I press D and: 1) TextBox_TextChanged prints ABCD. 2) Command prints ABC. D is missing. Why commands is so fast???

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  • ActiveX doesn't show up in Browser

    - by Boller
    Hi, i'm trying to put an activeX object on an asp-webpage. it already worked good a week ago, but now the object isn't showing up anymore. already made a little asp testing-project....just an asp-page and a activex control, containing a button and a label. but when i call up the page in the browser, there is only a white area with a little icon in the upper left corner, showing a red dot, a green triangle and a blue rectangle.... what does that mean? object not found? object blocked by IE? or what exactly does this icon stand for? i always thoght that an missing object is represented by an empty area with a little red cross in it. =/

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  • penetration of web 2.0 features amongst users?

    - by user151841
    I have a survey web-app that is public facing. I want to set up automated testing with Selenium, but selenium can't capture javascript alerts that we're currently using on the site. I'm thinking about changing our user-facing error notifications to some web 2.0 javascript library so that it is accessible to Selenium. However, I'm not sure how many of our users would be able to experience them properly. How backwards-compatible do I need to be in the present day? I have collected a database of actual user-agent strings of our users. I asked here how I could group them into meaningful data about what browsers our users are actually using.

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  • Implications of Fulltext Search over many columns

    - by Alex
    Hello, I have a really wide table which includes separate columns for billing address, shipping address, primary address, names, aliases etc. (I can't normalize this table further, and that's not the question here anyways). I'm implementing SQL Server fulltext search, and I'm wondering whether I should limit the search ability to just the primary fields (primary address and names for example), or if I can extend the search ability across all columns without occurring too much of a performance or memory penalty. I've done some basic testing with 10,000 sample rows and it's quite fast but I don't have much experience with fulltext indexing, especially its dictionary internals, so I don't know if the index is going to grow over time, or if there is anything else to consider. Thoughts?

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  • UDF function with library dependencies on MySQL 5.1

    - by Fredrik
    I'm having a problem with a MySQL UDF function (mychem.sourceforge.net) that's dependent on a large library (openbabel.org) which is in turn plugin based. The problem is that the format plugins to openbabel doesn't seem to load in MySQL 5.1 and I suspect it might be due to the plugin_dir setting. I have set plugin_dir to /usr/lib/ which is the location for both libmychem.so and libopenbabel.so as well as the directory openbabel that contains the format plugins. Is there a way to turn off the plugin_dir restriction in MySQL (preferably without compiling MySQL from sources) so that I can test this hypothesis or do you have a different idea on what might cause the problem? All this is done on Ubuntu 10.04 (but I had the same kind of problems on 8.04, where I managed to get it working after a lot of steps that I unfortunately have forgotten...) I have turned off apparmor during testing and it doesn't help either.

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  • Sharepoint 2007 and <!DOCTYPE html>

    - by Kondor
    Greetings... I'm trying to get my Sharepoint 2007 site to render in Standards mode when browsing in IE. Since makes every browser that I might be worrying about do just that, I decided to use it. I've read here and there that Standards mode could cause unwanted behavior to some OOTB functionality and style (fly-outs, calendar items, etc...), but can't find a full list containing error reference and ways to correct it. So, I'm looking for any kind of info and guidance on the matter... Just trying to avoid endless clicking through my app and hopping that some one altruistic by nature has gone through testing hell already and is willing to share. Thanks...

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  • Why do MSTests Assert.AreEqual(1.0, double.NaN, 0.0) pass?

    - by Egil Hansen
    Short question, why do Assert.AreEqual(1.0, double.NaN, 0.0) pass when Assert.AreEqual(1.0, double.NaN) do not? Is it an error in MSTest or am I missing something here? Best regards, Egil. Update: Should probably add, that the reason behind my question is, that I have a bunch of unit tests that unfortunately passed due to the result of some linear algebraic matrix operation being NaN or (+/-)Infinity. The unit tests are fine, but since Assert.AreEqual on doubles with a delta will pass when actual or/and expected are NaN or Infinity, I was left to believe that the code I was testing was correct.

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  • Concerns with SoapUI Pro when Updating Web Services

    - by Plenoge
    This may unfortunately be a very open-ended question, but a coworker of mine has shared concerns about using SoapUI Pro as our automated regression testing tool primarily on the basis that seemingly trivial WSDL changes can cause headaches for the QA crew. My coworker's particularly concerned that if we update the WSDL, even with a name change, we'll need to touch and update each existing test. As I understand it SoapUI Pro offers a refactoring tool to handle this for you. What are your experiences with SoapUI Pro and updating your web services? Am I missing something?

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  • How to test a .net application against a proxy?

    - by Pierre-Alain Vigeant
    I need to support the use of proxy on our application that is using WCF connections. We do not have any proxy server on our network and I don't want to disrupt our corporate network by requesting a proxy installation. I was thinking of installing a proxy server on a local virtual machine and configurating Internet Explorer so that it will challenge that proxy. I don't know what proxy software to use (I don't want to install ISA server) and I don't know how to configure one. Does someone have any suggestion for a easy to use software that will require an authentication for any WCF services and do you have any guideline that would be helpful to know when testing a software against a proxy?

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  • Available options for hosting FTP server in .NET application

    - by duane
    I need to implement an FTP service inside my .NET application (running as a Windows Service) and have not had much luck finding good/current source code or vendors. Ideally it needs to be able to respond to the basic FTP Protocol and accept the data stream from an upload via a stream, enabling me to process the data as it is being received (think on the fly hashing). I need to be able to integrate it into my service because it will stack on top of our current code base with an existing custom TCP/IP communication protocol. I don't want to write (and then spend time debugging and performance testing) my own protocol, or implementation. I have already found plenty of ftp client implementations, I just need an acceptable server solution.

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  • Need help on nested loop of queries in php and mysql?

    - by mysqllearner
    Hi, I am trying to get do this: <?php $good_customer = 0; $q = mysql_query("SELECT user FROM users WHERE activated = '1'"); // this gives me about 40k users while($r = mysql_fetch_assoc($q)){ $money_spent = 0; $user = $r['user']; // Do queries on another 20 tables for($i = 1; $i<=20 ; $i++){ $tbl_name = 'data' . $i; $q2 = mysql_query("SELECT money_spent FROM $tbl_name WHERE user = '{$user}'"); while($r2 = mysql_fetch_assoc($q2)){ $money_spend += $r2['money_spent']; } if($money_spend > 1000000){ $good_customer += 1; } } } This is just an example. I am testing on localhost, for single user, it returns very fast. But when I try 1000, it takes forever, not even mentioned 40k users. Anyway to optimise/improve this code? EDIT: By the way, each of the others 20 tables has ~20 - 40k records

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  • How to generate msdn documentation from javascript? preferably using sandcastle

    - by melaos
    hi is there a tool that i can use to generated msdn type documentation? i recently just started playing with sandcastle and i found that there used to a tool called scriptdoc but it has been absorbed into aptana and i don't really want to use aptana studio. what i could find so far is jsdoc which is a perl script which extracts comments from javascript files but i'm still looking for a better fit. from my initial testing it seems that the xml generated from jsdoc doesn't match completed with sandcastle or maybe i'm missing something there... any help?

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  • Google App Engine - About how much quota does a single datastore put use?

    - by Spines
    The latency for a datastore put is about 150ms (http://code.google.com/status/appengine/detail/datastore/2010/03/11#ae-trust-detail-datastore-put-latency). About how much CPUTime is used by a single datastore put with data size of 100 bytes, into an entity that has only 2 columns, and no indexes? I plan to do some testing with this later today to figure it out, but if anyone already knows that would help me out :). Also, does anyone know about how much extra overhead in CPUTime doing this datastore put through the task queue would be? Note: This is kind of a follow up to this question: http://stackoverflow.com/questions/2421075/google-app-engine-how-reliable-are-the-logs.

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  • Is there a module that implements an efficient array type in Erlang?

    - by dsmith
    I have been looking for an array type with the following characteristics in Erlang. append(vector(), term()) O(1) nth(Idx, vector()) O(1) set(Idx, vector(), term()) O(1) insert(Idx, vector(), term()) O(N) remove(Idx, vector()) O(N) I normally use a tuple for this purpose, but the performance characteristics are not what I would want for large N. My testing shows the following performance characteristics... erlang:append_element/2 O(N). erlang:setelement/3 O(N). I have started on a module based on the clojure.lang.PersistentVector implementation, but if it's already been done I won't reinvent the wheel.

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  • Powershell equivilent of python's if __name__ == '__main__':

    - by Mark Mascolino
    I am really fond of python's capability to do things like this: if __name__ == '__main__': #setup testing code here #or setup a call a function with parameters and human format the output #etc... This is nice because I can treat a Python script file as something that can be called from the command line but it remains available for me to import its functions and classes into a separate python script file easily without triggering the default "run from the command line behavior". Does Powershell have a similar facility that I could exploit? And if it doesn't how should I be organizing my library of function files so that i can easily execute some of them while I am developing them?

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  • What exactly does it mean when $_FILES is empty?

    - by Mike
    I am working on an upload script and when testing my error checks, I attempted to upload a 17MB TIFF file. When I do this the $_FILES array is empty. The script works fine for what I need it to do, which is to upload JPEG files. My solution is to test if $_FILES is empty or not before continuing with the upload script. Can anybody explain why $_FILES is empty when a TIFF is attempted to be uploaded? Is my solution, to check if $_FILES is empty or not, an okay one?

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