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  • Testing sample code in python modules

    - by Andrew Walker
    I'm in the process of writing a python module that includes some samples. These samples aren't unit-tests, and they are too long and complex to be doctests. I'm interested in best practices for automatically checking that these samples run. My current project layout is pretty standard, except that there is an extra top level makefile that has build, install, unittest, coverage and profile targets, that delegate responsibility to setup.py and nose as required. projectname/ Makefile README setup.py samples/ foo-sample foobar-sample projectname/ __init__.py foo.py bar.py tests/ test-foo.py test-bar.py I've considered adding a sampletest module, or adding nose.tools.istest decorators to the entry-point functions of the samples, but for a small number of samples, these solutions sound a bit ugly. This question is similar to http://stackoverflow.com/questions/301365/automatically-unit-test-example-code, but I assume python best practices will differ from C#

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  • What alternatives are there to Google App Engine?

    - by Chris Marasti-Georg
    What alternatives are there to GAE, given that I already have a good bit of code working that I would like to keep. In other words, I'm digging python. However, my use case is more of a low number of requests, higher CPU usage type use case, and I'm worried that I may not be able to stay with App Engine forever. I have heard a lot of people talking about Amazon Web Services and other sorts of cloud providers, but I am having a hard time seeing where most of these other offerings provide the range of services (data querying, user authentication, automatic scaling) that App Engine provides. What are my options here?

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  • Haskell's type system treats a numerical value as function?

    - by Long
    After playing around with haskell a bit I stumbled over this function: Prelude Data.Maclaurin> :t ((+) . ($) . (+)) ((+) . ($) . (+)) :: (Num a) => a -> (a -> a) -> a -> a (Data.Maclaurin is exported by the package vector-space.) So it takes a Num, a function, another Num and ultimately returns a Num. What magic makes the following work? Prelude Data.Maclaurin> ((+) . ($) . (+)) 1 2 3 6 2 is obviously not a function (a-a) or did I miss out on something?

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  • Finding specific pixel colors of a BitmapImage

    - by Andrew Shepherd
    I have a WPF BitmapImage which I loaded from a .JPG file, as follows: this.m_image1.Source = new BitmapImage(new Uri(path)); I want to query as to what the colour is at specific points. For example, what is the RGB value at pixel (65,32)? How do I go about this? I was taking this approach: ImageSource ims = m_image1.Source; BitmapImage bitmapImage = (BitmapImage)ims; int height = bitmapImage.PixelHeight; int width = bitmapImage.PixelWidth; int nStride = (bitmapImage.PixelWidth * bitmapImage.Format.BitsPerPixel + 7) / 8; byte[] pixelByteArray = new byte[bitmapImage.PixelHeight * nStride]; bitmapImage.CopyPixels(pixelByteArray, nStride, 0); Though I will confess there's a bit of monkey-see, monkey do going on with this code. Anyway, is there a straightforward way to process this array of bytes to convert to RGB values?

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  • C or C++ to write a compiler?

    - by H.Josef
    I want to write a compiler for a custom markup language, I want to get optimum performance and I also want to have a good scalable design. Multi-paradigm programming language (C++) is more suitable to implement modern design patterns, but I think that will degrade performance a little bit (think of RTTI for example) which more or less might make C a better choice. I wonder what is the best language (C, C++ or even objective C) if someone wants to create a modern compiler (in the sense of complying to modern software engineering principles as a software) that is fast, efficient, and well designed.

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  • Implementing a pager for asp.net's DataList/Repeater

    - by emre
    I have a DataList showing the results, and a Repeater that is supposed to be the pager. I decided to use the page number by redirecting with a QueryString parameter, so it will also be bookmarkable ... My problem is mainly in the UI actually. If I put DIV's with their onclick calling a JS function that does window.location = url + pagenumber , then somehow I have to deal with QueryString operations via JS which is a bit messy. If I use LinkButton objects within the ItemTemplate, then the Redirecting happens only when the linkbutton is clicked while whole div has cursor: pointer , you what I mean. What would be the best approach to this? Thanks in advance. Note: I really want to spend the time and effort implementing my own server-side paging. I think its more fun than reading 3rd party manuals.

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  • PHP5 what's wrong with my syntax?

    - by myxospsm
    Hey, I've never developed before and I'm a bit puzzled, what is wrong with my syntax here? private static $instance; //holder of Mongo_Wrapper public $connected = true; private $mongo = null; // The mongo connection affiliation private $database = null; // The database we are working on with this function: public function mongo_connect($db_name) { if (! self::connected) { $this->mongo = new Mongo; //TODO: error handle this whole sharade: throw new Kohana_Database_Exception('Cant connect', NULL, 503); $this->connected = true; } $this->database = $this->mongo->$db_name; //set the database we are working on return $connected; } I'm sorry, wmd-editor is giving me hell posting the code. Thank you!

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  • What is C's analogy to LabVIEW's Event Structure?

    - by SiegeX
    One programming construct I use quite a bit in LabVIEW is the Event Structure. This gives me the benefit of not having to needlessly waste CPU cycles via polling but only perform actions when an event I'm interested in is generated. As an experienced LabVIEW programmer with a decent understanding of C, I'm curious how one would go about emulating LabVIEW's event structure in C; preferably under Linux. A small code sample (like the one in the link above) illustrating how this might be done would be much appreciated. Also, if there already exists 3rd party libraries (for Linux) to add this event framework to C, that would be nice to know as well. Thanks.

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  • In javascript, error says 'is null or not an object'. When trying to use .change() code to hide form

    - by codemonkey613
    I'm getting a javascript error. URL: http://bit.ly/dfjvmT It has to do with this section of code: /* * Activate jQuery */ $(document).ready(function() { /* * Show hidden field when 'Other' selected from dropdown */ $.listHidden = { '6' : $('.referrer_other') }; $('#referrer_select').change(function() { // hide all $.each($.listHidden, function() { this.hide(); }); // show current $.listHidden[$(this).val()].slideDown(250); }).change(); }); The code works like this. The form has a dropdown asking "How did you find us?" If the user selects 'other', which is an <option> with value=6, a text input field .referrer_other becomes visible. Javascript is currently reporting that: '$.listHidden[...] is null or not an object'. It's an error that appears in IE. I found this code on the internet somewhere. Is there a way to fix it, or should I look for something else? Thanks

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  • Is it worth learning Perl 6?

    - by Andres
    I have the opportunity to take a two day class on Perl 6 with the Rakudo Compiler. I don't want to start a religious war, but is it worth my time? Is there any reason to believe that Perl 6 will be practical in the real world within the next two years? Does anyone currently use it effectively? Update I took the class and learned a lot. However, after day 1, my mind was a bit overwhelmed. There are tons of cool ideas in perl 6, and it will be neat to see what filters up to other languages. Overall the experience was a positive use of my time, though I wasn't able to absorb as much on the second day. If it were a three day class it would have been unproductive just because there is a limit to how much you can process in a short amount of time.

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  • CMS Preventing Bad HTML Insertion by Client?

    - by Jascha
    I'm building a small CMS in PHP for a client and something I've noticed that comes up fairly often is a client will enter a bit of HTML in a field without closing his/her tag. I'm wondering if there is some parsing technique to prevent bad HTML from rendering my whole output page in italics because the user forgot to add a closing </i> tag. I'm not worried about XSS or malicious html, just a forgotten tag here and there as it's the client who is managing the content. Forgive me if this is a duplicate question, I did some searching, but could not find an appropriate answer. -J

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  • Graphviz DOT arrange Nodes in circles, layout too "compact"

    - by Ivo Wetzel
    I'm halfway there please see the edit OK here's my problem, I'm generating a graph of a python module, including all the files with their functions/methods/classes. I want to arrange it so, that nodes gather in circles around their parent nodes, currently everything is on one gargantuan horizontal row, which makes the thing 50k pixels wide and also let's the svg converter fail(only renders about the half of the graph). I went trough the docs(http://www.graphviz.org/doc/info/attrs.html) but couldn't find anything that seems to do the trick. So the question is: Is there a simple way to do this or do I have to layout the whole thing by myself? :/ EDIT: Thanks to Andrews comment I've got the right layout, the only problem now is that it's a bit to "compact"... so the question now is, how to fix this?

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  • CodePlex Daily Summary for Saturday, March 05, 2011

    CodePlex Daily Summary for Saturday, March 05, 2011Popular ReleasesXsltDb - DotNetNuke Module Builder: 02.00.66: Using XsltDb As User Controladding XsltDb configurations to skin, to your controls, ... Page level output cachingAlso takes into account current user current language see mdo:setup-putput-cache. Performance optimizations......for large configurations or large outputAutoLoL: AutoLoL v1.6.4: It is now possible to run the clicker anyway when it can't detect the Masteries Window Fixed a critical bug in the open file dialog Removed the resize button Some UI changes 3D camera movement is now more intuitive (Trackball rotation) When an error occurs on the clicker it will attempt to focus AutoLoLYAF.NET (aka Yet Another Forum.NET): v1.9.5.5 RTW: YAF v1.9.5.5 RTM (Date: 3/4/2011 Rev: 4742) Official Discussion Thread here: http://forum.yetanotherforum.net/yaf_postsm47149_v1-9-5-5-RTW--Date-3-4-2011-Rev-4742.aspx Changes in v1.9.5.5 Rev. #4661 - Added "Copy" function to forum administration -- Now instead of having to manually re-enter all the access masks, etc, you can just duplicate an existing forum and modify after the fact. Rev. #4642 - New Setting to Enable/Disable Last Unread posts links Rev. #4641 - Added Arabic Language t...youtubeFisher: YouTubeFisher v3.0 Beta: Adding support for more video formats including the Super HD (e.g. http://www.youtube.com/watch?v=MrrHs2bnHPA) Minor change related to the video title due to change in YouTube pageSnippet Designer: Snippet Designer 1.3.1: Snippet Designer 1.3.1 for Visual Studio 2010This is a bug fix release. Change logFixed bug where Snippet Designer would fail if you had the most recent Productivity Power Tools installed Fixed bug where "Export as Snippet" was failing in non-english locales Fixed bug where opening a new .snippet file would fail in non-english localesChiave File Encryption: Chiave 1.0: Final Relase for Chave 1.0 Stable: Application for file encryption and decryption using 512 Bit rijndael encyrption algorithm with simple to use UI. Its written in C# and compiled in .Net version 3.5. It incorporates features of Windows 7 like Jumplists, Taskbar progress and Aero Glass. Now with added support to Windows XP! Change Log from 0.9.2 to 1.0: ==================== Added: > Added Icon Overlay for Windows 7 Taskbar Icon. >Added Thumbnail Toolbar buttons to make the navigation easier...ASP.NET: Sprite and Image Optimization Preview 3: The ASP.NET Sprite and Image Optimization framework is designed to decrease the amount of time required to request and display a page from a web server by performing a variety of optimizations on the page’s images. This is the third preview of the feature and works with ASP.NET Web Forms 4, ASP.NET MVC 3, and ASP.NET Web Pages (Razor) projects. The binaries are also available via NuGet: AspNetSprites-Core AspNetSprites-WebFormsControl AspNetSprites-MvcAndRazorHelper It includes the foll...Document.Editor: 2011.9: Whats new for Document.Editor 2011.9: New Templates System New Plug-in System New Replace dialog New reset settings Minor Bug Fix's, improvements and speed upsTortoiseHg: TortoiseHg 2.0: TortoiseHg 2.0 is a complete rewrite of TortoiseHg 1.1, switching from PyGtk to PyQtSandcastle Help File Builder: SHFB v1.9.2.0 Release: This release supports the Sandcastle June 2010 Release (v2.6.10621.1). It includes full support for generating, installing, and removing MS Help Viewer files. This new release is compiled under .NET 4.0, supports Visual Studio 2010 solutions and projects as documentation sources, and adds support for projects targeting the Silverlight Framework. NOTE: The included help file and the online help have not been completely updated to reflect all changes in this release. A refresh will be issue...Network Monitor Open Source Parsers: Microsoft Network Monitor Parsers 3.4.2554: The Network Monitor Parsers packages contain parsers for more than 400 network protocols, including RFC based public protocols and protocols for Microsoft products defined in the Microsoft Open Specifications for Windows and SQL Server. NetworkMonitor_Parsers.msi is the base parser package which defines parsers for commonly used public protocols and protocols for Microsoft Windows. In this release, we have added 4 new protocol parsers and updated 79 existing parsers in the NetworkMonitor_Pa...Image Resizer for Windows: Image Resizer 3 Preview 1: Prepare to have your minds blown. This is the first preview of what will eventually become 39613. There are still a lot of rough edges and plenty of areas still under construction, but for your basic needs, it should be relativly stable. Note: You will need the .NET Framework 4 installed to use this version. Below is a status report of where this release is in terms of the overall goal for version 3. If you're feeling a bit technically ambitious and want to check out some of the features th...JSON Toolkit: JSON Toolkit 1.1: updated GetAllJsonObjects() method and GetAllProperties() methods to JsonObject and Properties propertiesFacebook Graph Toolkit: Facebook Graph Toolkit 1.0: Refer to http://computerbeacon.net for Documentation and Tutorial New features:added FQL support added Expires property to Api object added support for publishing to a user's friend / Facebook Page added support for posting and removing comments on posts added support for adding and removing likes on posts and comments added static methods for Page class added support for Iframe Application Tab of Facebook Page added support for obtaining the user's country, locale and age in If...ASP.NET MVC Project Awesome, jQuery Ajax helpers (controls): 1.7.1: A rich set of helpers (controls) that you can use to build highly responsive and interactive Ajax-enabled Web applications. These helpers include Autocomplete, AjaxDropdown, Lookup, Confirm Dialog, Popup Form, Popup and Pager small improvements for some helpers and AjaxDropdown has Data like the Lookup except it's value gets reset and list refilled if any element from data gets changedManaged Extensibility Framework: MEF 2 Preview 3: This release aims .net 4.0 and Silverlight 4.0. Accordingly, there are two solutions files. The assemblies are named System.ComponentModel.Composition.Codeplex.dll as a way to avoid clashing with the version shipped with the 4th version of the framework. Introduced CompositionOptions to container instantiation CompositionOptions.DisableSilentRejection makes MEF throw an exception on composition errors. Useful for diagnostics Support for open generics Support for attribute-less registr...PHPExcel: PHPExcel 1.7.6 Production: DonationsDonate via PayPal via PayPal. If you want to, we can also add your name / company on our Donation Acknowledgements page. PEAR channelWe now also have a full PEAR channel! Here's how to use it: New installation: pear channel-discover pear.pearplex.net pear install pearplex/PHPExcel Or if you've already installed PHPExcel before: pear upgrade pearplex/PHPExcel The official page can be found at http://pearplex.net. Want to contribute?Please refer the Contribute page.WPF Application Framework (WAF): WPF Application Framework (WAF) 2.0.0.4: Version: 2.0.0.4 (Milestone 4): This release contains the source code of the WPF Application Framework (WAF) and the sample applications. Requirements .NET Framework 4.0 (The package contains a solution file for Visual Studio 2010) The unit test projects require Visual Studio 2010 Professional Remark The sample applications are using Microsoft’s IoC container MEF. However, the WPF Application Framework (WAF) doesn’t force you to use the same IoC container in your application. You can use ...VidCoder: 0.8.2: Updated auto-naming to handle seconds and frames ranges as well. Deprecated the {chapters} token for auto-naming in favor of {range}. Allowing file drag to preview window and enabling main window shortcut keys to work no matter what window is focused. Added option in config to enable giving custom names to audio tracks. (Note that these names will only show up certain players like iTunes or on the iPod. Players that support custom track names normally may not show them.) Added tooltips ...SQL Server Compact Toolbox: Standalone version 2.0 for SQL Server Compact 4.0: Download the Visual Studio add-in for SQL Server Compact 4.0 and 3.5 from here Standalone version of (most of) the same functionality as the add-in, for SQL Server Compact 4.0. Useful for anyone not having Visual Studio Professional or higher installed. Requires .NET 4.0. Any feedback much appreciated.New Projects.Deploy - Enterprise .NET Application Deployment Solution: .Deploy is a .NET based enterprise application deployment solution focused around .NET applications. .Deploy automates the repetitive task of pushing/deploying applications in a controlled, auditable, and verifiable way.AAEngine: A 2D game engine for XNA.ANKASTS: ankastsAutomator: Automator is a GUI tool that is intended to manage and run hierarchical structure of actions (Tasks). Something similar to NAnt but targeted for a far wider audience. Automator is developed in C# and WPF.BANews: ???????????????????,??SQL+Server2008,C#,asp.net????,??????Jquery?CSS+DIV??。??????,?????????????,????????,??????,??。Cloud BookShelf: Cloud BookShelf ?OData Client for Objective-C(http://odataobjc.codeplex.com/)????、Azure??????????????iOS??????????。CodingBlog: codingblogDNN Module Samples: There are some sample DNN modules in this projectEITEST: It is the Test Projecteuler 11: euler 11euler 52 problem: euler 52 problemfastspweb - Access SPWeb through cache: This an engine for caching SPSite and SPWeb objects on SharePoint. Because SharePoint dont alllow multithreaded access to these objects, the access is done through a threadpoolGSP420 2011 Spring Course Project: Course project game engine for DeVry Spring 2011 GSP420 class.IE Library for Small Basic: This library extend Small Basic to allows you to access web site using by Internet Explorer from Small Basic program. ???????? Small Basic ????、Small Basic ??? Internet Explorer ???? Web ???????????????????。InfoStrat Motion Framework: InfoStrat Motion Framework enables you to easily use motion tracking in your WPF applications with depth sensors such as Kinect and PrimeSensor.JSC.Mobile: Mobile(IPhone) WebApp with offline capabilities to administrate your car milagesMSSQL Db Generation From and To .NET Assemblies(Dlls): MSSQL DbGenerator works with an existing MSSQL Db and codes all structers of it into a .NET Assembly(DbAssembly) --of course with the exception of data within. More than that it has the ability to read any previously created DbAssembly and generates MSSQL db from scratchMVP Summit Events WP7: An application to learn of the best gatherings and events at the Microsoft MVP Summit in 2011. We are open sourcing the application to give some knowledge around how to develop a Windows Phone 7 application consuming OData with the MVVM pattern.NAntMenu: NAntMenu Shell Extension is a Windows Shell Extension allowing you to run NAnt build scripts directly from within Windows Explorer.NGem: another attempt to create package management in .net/c++ environmentNOrder: A basic sorting algorithm library developed in C#, providing users the flexibility to choose how to sort data.Orchard CulturePicker Module: Module for Orchard, that allows users to pick a preferred culture, instead of using a default site culture.Orchard Html Field Module: Html Field for the Orchard ProjectP9876: p9876 is not p1234SharePoint 2010 File Migrating tool (console program): Copy files and sub folders from file system to SharePoint 2010 document librarySilverlightTube: Silverlight Media End Work Project to recreate a You Tube looking websiteSITEYONETIM: Site ve Apartman YönetimiSITEYONETIMWEB: siteyonetimwebSteel: Steel is a puzzle game for Windows Phone 7 made with the XNA framework.WikiVB: A Wikipedia API wrapper library written in VB.NET. Can be used with languages like C#, F# and other .NET programming languages.

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  • Print "1 followed by googolplex number of zeros" [closed]

    - by Rajan
    Assuming we are not concerned about running time of the program (which is practically infinite for human mortals), we want to print out in base 10, the exact value of 10^(googolplex), one digit at a time (mostly zeros). Describe an algorithm (which can be coded on current day computers), or write a program to do this. Since we cannot practically check the output, so we will rely on collective opinion on the correctness of the program. NOTE : I do not know the solution, or whether a solution exists or not. The problem is my own invention. To those readers who think this is not a CS question... kindly reconsider. This is difficult and bit theoretical but definitely CS.

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  • ffmpeg 0.5 flv to wav conversion creates wav files that other programs won't open.

    - by superrebel
    Hi, I am using the following command to convert FLV files to audio files to feed into julian, a speech to text program. cat ./jon2.flv | ffmpeg -i - -vn -acodec pcm_s16le -ar 16000 -ac 1 -f wav - | cat - > jon2.wav The cat's are there for debugging purposes as the final use will be a running program that will pipe FLV into ffmpeg's stdin and the stdout going to julian. The resulting wave files are identified by "file" as: jon3.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono 16000 Hz VLC (based on ffmpeg) plays the file, but no other tools will open/see the data. They show empty wav files or won't open/play. For example Sound Booth from CS4. Has anyone else had similar problems? Julian requires wav files 16bit mono at 16000 Hz. Julian does seem to read the file, but doesn't seem to go through the entire file (may be unrelated). Thanks, -rr

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  • WordPress: Problem with the shortcode regex

    - by peroyomas
    This is the regular expression used for "shortcodes" in WordPress (one for the whole tag, other for the attributes). return '(.?)\[('.$tagregexp.')\b(.*?)(?:(\/))?\](?:(.+?)\[\/\2\])?(.?)'; $pattern = '/(\w+)\s*=\s*"([^"]*)"(?:\s|$)|(\w+)\s*=\s*\'([^\']*)\'(?:\s|$)|(\w+)\s*=\s*([^\s\'"]+)(?:\s|$)|"([^"]*)"(?:\s|$)|(\S+)(?:\s|$)/'; It parses stuff like [foo bar="baz"]content[/foo] or [foo /] In the WordPress trac they say it's a bit flawed, but my main problem is that it don't support shortcodes inside the attributes, like in [foo bar="[baz /]"]content[/foo] because the regex stops the main shortcode at the first appearance of a closing bracket, so in the example it renders [foo bar="[baz /] and "]content[/foo] shows as it is. Is there any way to change the regex so it bypass any ocurrence of [ with ] and its content when occurs between the opening tag or self-closing tag?

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  • Theory of Computation - Showing that a language is regular..

    - by Tony
    I'm reviewing some notes for my course on Theory of Computation and I'm a little bit stuck on showing the following statement and I was hoping somebody could help me out with an explanation :) Let A be a regular language. The language B = {ab | a exists in A and b does not exist in A*} Why is B a regular language? Some points are obvious to me. If b is simply a constant string, this is trivial. Since we know a is in A and b is a string, regular languages are closed under union, so unioning the language that accepts these two strings is obviously regular. I'm not sure that b is constant, however. Maybe it is, and if so, then this isn't really an issue. I'm having a hard time making sense of it. Thanks!

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  • Using jQuery to listen for an AJAX load that is not loaded using jQuery.AJAX

    - by rich
    Okay, have a bit of a tricky one (for me anyway, i'm pretty rubbish at jQuery/JavaScript). I'm pulling in data using standard AJAX (ie, NOT using a framework like jQuery or whatnot... there is a reason for it) However, I then need to load up a jQuery script as soon as the page has been loaded in. So, here is the question, how do I bind the script once the DOM has been updated? I have been using Ariel Fleser's listen plugin (http://flesler.blogspot.com/2007/10/jquerylisten.html) for picking up on events such as clicks which works a treat, but I can't see how this can be used to listen for a load event. Any ideas? I'm pretty stumped on this one!!

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  • 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.

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  • Opencart Installation and Display Errors

    - by jpoles1
    Hello, I need a bit of help installing a copy of Opencart onto my Godaddy hosting. I have had one major problem and that was, after during and after the install, none of the styles or images where appearing. I was able to completely fix the admin panel, but I am now running into problems with the frontend. I was able to fix the styles by editing a couple lines in the index.php file: define('HTTP_SERVER', 'http://' . $_SERVER['HTTP_HOST'] .'/opencart/'); define('HTTP_IMAGE', 'http://jpoles1.com/image/'); Now the problem is that unless you are on the base url http://jpoles1.com/opencart/, none of the database functionality works. For example the brands dropdown on the left will only be populated on the root page. Am I going about this problem the wrong way? What should I do to fix this problem? -- Thanks, Jordan

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  • UART speed possibly wrong

    - by Mike
    My brain is fried, so I thought I would pass this one to the community. When sending 1 character to my embedded system, it consistently thinks it receives 2 characters. The first received character seems to map to the transmitted character (in some unkown way) and the second received character is always 0xff Here is what I observed: Tx char (in hex) Rx character (in hex), I left out the second byte (always ff) 31 9D 32 9B 33 99 61 3D 62 3B 63 39 64 37 65 35 41 7D 42 7B 43 79 I have check my clocks and them seem to be ok. The only diff between this non working version and the previous version is that i am now using a RS485 chip. I have traced the signal all the way up to the MCU and it looks fine (confirmed the bit value on the rx pin)

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  • ::LookupAccountSid API Extremely Slow When Targeting x64 Platform (Windows 7)

    - by Chris
    During our application startup, we are making a call to ::LookupAccountSid(). When I build targeting the x86 architecture, this call is nearly instantaneous. However, when I target x64 (debug or release), the call generally takes over 40s to complete. Since this is occurring during application startup, the result is fairly unpleasant as it will appear to the user that the application is not launching. I am running Windows 7 Professional 64-bit on a Dell Studio XPS 16 (Intel Core i7 Q 720). Our application is a native Windows application written in C++. My compiler options (CCOPTS) and linker options (LINKOPTS) are as follows: CCOPTS = "/nologo /Gz /W3 /EHs /c /DWIN32 /D_MBCS /Ob1 /vmg /vmv /Zi /MD /DNDEBUG /DDV_BUILD_DLL /DIV_BUILD_DLL /DDVASSERT_EXCEPTION /Zc:wchar_t-" LINKOPTS = "/manifest:no /nologo /machine:X64 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /DEBUG /subsystem:windows /DLL" Any help would be greatly appreciated :D

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  • Segmentation fault in strcpy

    - by Alien01
    consider the program below char str[5]; strcpy(str,"Hello12345678"); printf("%s",str); When run this program gives segmentation fault. But when strcpy is replaced with following, program runs fine. strcpy(str,"Hello1234567"); So question is it should crash when trying to copy to str any other string of more than 5 chars length. So why it is not crashing for "Hello1234567" and only crashing for "Hello12345678" ie of string with length 13 or more than 13. This program was run on 32 bit machine .

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  • AudioQueue recording as float

    - by niklassaers
    Hi guys, I would like to have the result from my recording as a float in the range [0.0, 1.0], alternatively [-1.0, 1.0] because of a bit of math I want to do on it. When I set my recordingformat to be in float, like this: mRecordFormat.mFormatFlags = kLinearPCMFormatFlagIsFloat; I get: Error: AudioQueueNewInput failed ('fmt?') Does this mean the hardware doesn't support recording to floats? If not, how do I set it to record in floats? If so, are there any processor-friendly ways I can convert a signed integer array to a float array? Cheers Nik

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  • database datatype size

    - by yeeen
    Just to clarify by specifying sth like VARCHAR(45) means it can take up to max 45 characters? I rmb I heard from someone a few years ago that the number in the parathesis doesn't refer to the no of characters, then the person tried to explain to me sth quite complicated which i don't understand n forgot alr. And what is the difference btn CHAR and VARCHAR? I did search ard a bit and see that CHAR gives u the max of the size of the column and it is better to use it if ur data has a fix size and use VARCHAR if ur data size varies. But if it gives u the max of the size of the column of all the data of this col, isn't it better to use it when ur data size varies? Esp if u don't know how big is ur data size gg to be. VARCHAR needs to specify the size (CHAR don't really need right?), isn't it more troublesome?

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