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• How do I specify MSBuild to execute command-line calls in ascii not unicode

  - by Ben L

  I'm attempting to target VC7.1 (visual studio 2003 sp1) from Visual Studio 2010. I'm so close to setting it to work. But when I build, I get this error. 1------ Build started: Project: AnExample, Configuration: Release Win32 ------ 1 Microsoft (R) 32-bit C/C++ Standard Compiler Version 13.10.6030 for 80x86 1 Copyright (C) Microsoft Corporation 1984-2002. All rights reserved. 1 1 cl ÿ_/ 1 1cl : Command line warning D4024: unrecognized source file type 'ÿ_/', object file assumed 1 Microsoft (R) Incremental Linker Version 7.10.6030 1 Copyright (C) Microsoft Corporation. All rights reserved. 1 1 /out:.exe 1 ¦/ 1LINK : fatal error LNK1181: cannot open input file ' ¦/.obj' I know this is unsupported but I thought I'd give it a go. Does anyone know how to force the output from msbuild to be ascii or if this is the problem? There were some errors like this years ago related to the DDK acorrding to some other forums. Thanks.

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• In Rails: How can I turn off caching for a particular activerecord database table?

  - by pmneve

  I have an associative table (scripts_runs) (has_many, through) that carries a status column ('started', 'ready to parse', 'completed' ). The started and ready to parse states are signaled by 'flag' files from distributed executions of the scripts pickedup periodically (20 seconds). The completed status is written directly to the associative table by the parser when it is done. With short scripts the complete status is written before the ready to parse flag file is picked up. Because the row from the table is cached, the complete status is not seen by the observer for the flag files and gets overwritten by the ready to parse status. This is not good. I need the status to be updated in the database in the correct sequence so an Ajax periodic query can inform the user of the status of each script and when the run ( consisting of one to many scripts ) is completed. Can I force the ScriptRun.find(:id) to always go to the database? If so how? If not, why not???

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• Initialization of std::vector<unsigned int> with a list of consecutive unsigned integers

  - by Thomas

  I want to use a special method to initialize a std::vector<unsigned int> which is described in a C++ book I use as a reference (the German book 'Der C++ Programmer' by Ulrich Breymann, in case that matters). In that book is a section on sequence types of the STL, referring in particular to list, vector and deque. In this section he writes that there are two special constructors of such sequence types, namely, if Xrefers to such a type, X(n, t) // creates a sequence with n copies of t X(i, j) // creates a sequence from the elements of the interval [i, j) I want to use the second one for an interval of unsigned int, that is std::vector<unsigned int> l(1U, 10U); to get a list initialized with {1,2,...,9}. What I get, however, is a vector with one unsigned int with value 10 :-| Does the second variant exist, and if yes, how do I force that it is called?

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• Detecting syllables in a word

  - by user50705

  I need to find a fairly efficient way to detect syllables in a word. E.g., invisible - in-vi-sib-le There are some syllabification rules that could be used: V CV VC CVC CCV CCCV CVCC *where V is a vowel and C is a consonant. e.g., pronunciation (5 Pro-nun-ci-a-tion; CV-CVC-CV-V-CVC) I've tried few methods, among which were using regex (which helps only if you want to count syllables) or hard coded rule definition (a brute force approach which proves to be very inefficient) and finally using a finite state automata (which did not result with anything useful). The purpose of my application is to create a dictionary of all syllables in a given language. This dictionary will later be used for spell checking applications (using Bayesian classifiers) and text to speech synthesis. I would appreciate if one could give me tips on an alternate way to solve this problem besides my previous approaches. I work in Java, but any tip in C/C++, C#, Python, Perl... would work for me.

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• How can I make a steady automata in JavaScript?

  - by RobertWHurst

  I'm working on a JavaScript game and I've got an automata system controlling game time and sprite animation as well as giving a hand to the path finding system for timing and such. My problem is on slow browsers the JavaScript loop I'm using for counting the time is not very accurate. It tends to jump around a lot. I there a way to force the loop to run consistently at 30 fps? The automata can drop frames if it needs to catch up so if the solution requires dropping frames that's ok.

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• Do i *have* to use ObservableCollection in Silverlight WCF client?

  - by Simon_Weaver

  When accessing Silverlight in WCF you get proxies generated with ObservableCollection Thats fine when you're databinding, but a little clumsy when you're just calling a method. For instance the following service method : [OperationContract] public SearchOrdersMsgOut SearchOrders(ShippingStatusType[] shippingStatuses, string[] orderId) { } gets generated with ObservableCollection. What! They're just parameters. Why would I ever want to 'observe' them? I'm fine if I have to do this - but it seems like there should be a way to force simple array structures when I know I'm never databinding - especially on input messages. I'd much rather do this : searchCriteria.PaymentStatus = new [] { PaymentStatusType.PaymentFailed, PaymentStatusType.Unpaid }; than this : searchCriteria.PaymentStatus = new ObservableCollection<PaymentStatusType> { PaymentStatusType.PaymentFailed, PaymentStatusType.Unpaid }; Is there a way? PS. I do actually use a SearchCriteria object for my search criteria - but I simplified for this example wondering if parameters were handled differently.

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• Cannot select/edit TineMCE-generated table

  - by Rakward

  I'm currently using TinyMCE edit in my drupal-website, problem is that beneath the editor, some of the table is sticking out. If I remove the height set by javascript with firebug, it looks fine, even after resizing. So I want to remove the height with JS, I've put this function at the end of my page: $('table#edit-body_tbl').removeAttr('style'); However nothing happens. I test the function in firebug's console, it works perfectly. Basically, the problem is the JS works, but it wont do anything if I simply load it at the end of the page, even in the document.ready function. The TineMCE script is loaded before my script so I should be able to select/edit/delete elements generated by it no? Does anybody know why or how I can force the page to really load my function in the end(currently it is right in front of the -tag)? Other functions in the script work, except this thing ...

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• Internet Explorer visual element stacking issue

  - by Michael

  Gday All, I know this issue is well known, however I have searched high and low for a solution to no avail. I have created a menu system using nested ordered lists where the menu functionality is controlled by CSS and Jquery. The menu works perfectly in FF, Chrome, Opera and Epiphany. However in IE 6/7/8 my popup menu is being displayed underneath a table. See the image below. The very top box is a div element containing my menu system. I am working with legacy code that uses tables for display so the next box and the "ts found. Try a different subcate" text is in a "td" element of a table. I have tried to force the table to have a lower z-index but this does not work. Any insights into why this is only present in IE would be appreciated. Cheers, Michael

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• Custom Validation on jquery validate plugin, need to count element in a multiple select

  - by 0plus1

  I have a multiple select, and I need to force the user to choose maximum two options, nothing more. I'm trying this: jQuery.validator.addMethod("morethantwo", function(value, element) { var foo = []; $(element+' :selected').each(function(i, selected){ foo[i] = $(selected).text(); alert(foo[i]); }); return true; },"Max two options." ); The problem is that I get a: uncaught exception: Syntax error, unrecognized expression: [object HTMLSelectElement] error. While if I do this: $(element).each(function(i, selected){ foo[i] = $(selected).text(); alert(foo[i]); }); It works but I get all the options in the select. Why is that? Is this the correct road to walk? Are there better ways to do this kind of check? Thank you very much!

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• Algorithm to aggregate values from child tree nodes

  - by user222164

  I have objects in a tree structure, I would like to aggregate status information from children nodes and update parent node with aggregated status. Lets say node A has children B1, B2, and B1 has C1, C2, C3 as children. Each of the nodes have a status attribute. Now if C1, C2, C3 are all complete then I would like to mark B1 as completed. And if C4, C5,C6,C7 are complete make B2 as complete. When B1 and B2 are both complete mark A as complete. I can go through these nodes in brute force method and make updates, could someone suggest an efficient algorithm to do it. A { B1 { C1, C2, C3}, B2 { C4, C5, C6, C7} }

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• All possible values of int from the smallest to the largest, using Java.

  - by Totophil

  Write a program to print out all possible values of int data type from the smallest to the largest, using Java. Some notable solutions as of 8th of May 2009, 10:44 GMT: 1) Daniel Lew was the first to post correctly working code. 2) Kris has provided the simplest solution for the given problem. 3) Tom Hawtin - tackline, came up arguably with the most elegant solution. 4) mmyers pointed out that printing is likely to become a bottleneck and can be improved through buffering. 5) Jay's brute force approach is notable since, besides defying the core point of programming, the resulting source code takes about 128 GB and will blow compiler limits. As a side note I believe that the answers do demonstrate that it could be a good interview question, as long as the emphasis is not on the ability to remember trivia about the data type overflow and its implications (that can be easily spotted during unit testing), or the way of obtaining MAX and MIN limits (can easily be looked up in the documentation) but rather on the analysis of various ways of dealing with the problem.

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• HTTP Content-type header for cached files

  - by Brian

  Hello, Using Apache with mod_rewrite, when I load a .css or .js file and view the HTTP headers, the Content-type is only set correctly the first time I load it - subsequent refreshes are missing Content-type altogether and it's creating some problems for me. I can get around this by appending a random query string value to the end of each filename, eg. http://www.site.com/script.js?12345 However, I don't want to have to do that, since caching is good and all I want is for the Content-type to be present. I've tried using a RewriteRule to force the type but still didn't solve the problem. Any ideas? Thanks, Brian

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• Is there a config option in PHP to prevent undefined constants from being interpreted as strings?

  - by mrbinky3000

  This is from the php manual: http://us.php.net/manual/en/language.constants.syntax.php If you use an undefined constant, PHP assumes that you mean the name of the constant itself, just as if you called it as a string (CONSTANT vs "CONSTANT"). An error of level E_NOTICE will be issued when this happens. I really don't like this behavior. If I have failed to define a required constant, I would rather the script fail so that I am forced define it. Is there any way to force PHP to crash the script if it tries to use an undefined constant? For example. Both of these scripts do the same thing. <?php define('DEBUG',1); if (DEBUG) echo('Yo!'); ?> and <?php if(DEBUG) echo('Yo!'); ?> I would rather the second script DIE and declare that it tried to use an undefined constant DEBUG.

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• Within a category, "Seach all posts" checkbox, how to?

  - by benoror

  Hi, I have set up my routes so I can search all posts with: /posts/search/foobar or search inside a category /posts/category/1/search/foobar It works pretty well, when someone is browsing an specific category it does search just posts that belongs to that category. When inside a category, I want to place a checkbox to "Search all the posts" My search form: <% form_for :posts, :url => {:controller => :posts, :action => :index} do |f| %> Search: <%= f.text_field :search %> <% if params[:cat] %> <%= f.check_box :ignore_cat, '1', false %> Search all the posts? <% end %> <%= f.submit 'Go' %> <% end %> How can I force to change the route?

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• Event Tracking

  - by DRapp

  I want to understand event cycles. I have a form with a grid and textboxes. It has a grid, bound to DataTable, and textboxes bound to same table too. I'm trying to debug something and need to know how to identify ALL events fired in the form to see what may solve an issue for me. Anyhow, unless I explicitly subclass every class on my form, and override / attach to every event to my own event handlers, how can I get / listen to all events being fired during a certain action... Such as changing a "Selected" road in a DataGridView. It obviously updates its own "CurrentRow"... I need to know what / how to maybe FORCE a re-loading of SAME CurrentRow. Reason: during a form level "Edit Mode", and I change the content in another "Textbox" control, and reject changes, I need it to simulate the current "Record" is reloaded to go back to its original values.

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• flash video covering JQueryUI model dialog

  - by user200295

  I have a site with a flash SWF on the home page. I have a login dialog that is displayed using the jquery ui modal. The modal dialog is being covered by the SWF movie when it opens. I tried setting the z-index etc but nothing seems to stop the SWF from covering the log in. Is there any way to force the SWF movie to the background? The SWF uses src="support/AC_RunActiveContent.js" if that helps isolate the version.

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• How to center an R plot

  - by ConnorG

  I'm working on visualizing a matrix in R (almost exactly like http://reference.wolfram.com/mathematica/ref/MatrixPlot.html), and I've been using image(<matrix>,axes=FALSE) to draw the picture. However, I noticed that with the y-axis turned off, the plot isn't centered--the space is still there for the axis ticks + label. I can finagle some centering with par(oma=c(0,0,0,2.5)) but this seems inefficient and error-prone (if my matrix were to change dimensions/become non-square). Is there a better way to force the graphic to center? The right hand margin is significantly smaller than the left.

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• Memory-Mapped Files & Transparent Persistence of Java Objects

  - by geeko

  Greeting All, I want to achieve transparent persistence of Java objects through memory-mapped files (utilize the OS paging/swapping mechanism). My problem is: how can I move a Java object to my memory-mapped block ? Plus, how can I force a new object instance to reside in such blocks ? As you all know, a memory-mapped block can be seen as a byte array, and what I am really asking here is how to overlap the address space of Java objects with the one of such arrays ? If Java does not allow me for this, what cross-platform & garbage-collecting OO language would you advise me to use ? Thank you all in advance.

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• Yield In VB.NET

  - by MagicKat

  C# has the keyword called yield. VB.NET lacks this keyword. I am curious how some of the VB programmers have gotten around the lack of this keyword. Do you implement your own iterator class? Or do you try and code to avoid the need of an iterator? The yield keyword does force the compiler to do some coding behind the scenes. http://blogs.msdn.com/oldnewthing/archive/2008/08/12/8849519.aspx is a good example of that.

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• Session ID Rotation - does it enhance security?

  - by dound

  (I think) I understand why session IDs should be rotated when the user logs in - this is one important step to prevent session fixation. However, is there any advantage to randomly/periodically rotating session IDs? This seems to only provide a false sense of security in my opinion. Assuming session IDs are not vulnerable to brute-force guessing and you only transmit the session ID in a cookie (not as part of URLs), then an attacker will have to access your cookie (most likely by snooping on your traffic) to get your session ID. Thus if the attacker gets one session ID, they'll probably be able to sniff the rotated session ID too - and thus randomly rotating has not enhanced security.

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• How does the Garbage Collector decide when to kill objects held by WeakReferences?

  - by Kennet Belenky

  I have an object, which I believe is held only by a WeakReference. I've traced its reference holders using SOS and SOSEX, and both confirm that this is the case (I'm not an SOS expert, so I could be wrong on this point). The standard explanation of WeakReferences is that the GC ignores them when doing its sweeps. Nonetheless, my object survives an invocation to GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced). Is it possible for an object that is only referenced with a WeakReference to survive that collection? Is there an even more thorough collection that I can force? Or, should I re-visit my belief that the only references to the object are weak?

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• How to load a page with its default values after a postback

  - by Shrage Smilowitz

  I'm creating user controls that i will put into an update panel and make them visible only when required using triggers. Once visible it will float in a dialog box so it has a close button which will just hide the control on client side. The controls have multiple post back states, like a wizard, i'm using a multi view control to accomplish that. My problem is that once the user is at step number two in the control, if the user closes the dialog, than opens the dialog again, (note that the control is made visible on the server and reloaded by updating the updatepanel) the second step will still be displayed. The reason is . because whenever there is a postback the control will load its state using the viewstate, even if EnableViewState is false it will still load it using the LoadControlState method. so my quesion is how can i force a user control to load fresh with its default values without any postback data.

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• Django DecimalField returns "None" instead of empty value

  - by Ed

  Is there a way to force django to display nothing instead of "None" for a Decimal Field that's been left blank? In my template, I show a list of all the values for a particular field. Each value is hyperlinked to a page that displays the results of a query filtered on that value. But because there are some entries with null value, my list includes actual DecimalField entries and "None" for all those that are empty. When a user clicks on None, django throws a validation error because you cannot query a DecimalField using a string. I could write if statements checking all instances of decimal fields for Nones and skipping them, but that is far from an elegant solution. Any advice? This is one part of the code, though there are other templates that derive the None value in slightly different manners: {% for item in choices %} <a href={% url app_views.field_choice item %}>{{ item }}</a><br> {% endfor %}

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• Secure login on your domain with Google App Engine

  - by mhost

  Hi, We are starting a very large web based service project. We are trying to decide what hosting environment to use. We would really like to use Google App Engine for scalability reasons and to eliminate the need to deal with servers ourselves. Secure logins/registrations is very important to us, as well as using our own domain. Our target audience is not very computer savvy. For this reason, we don't want to have the users have to sign up with OpenID as this can't be done within our site. We also do not want to force our customers to sign up with Google. As far as I can see, I am out of luck. I am hoping to have a definite answer to this question. Can I have an encrypted login to our site accessed via our domain, without having to send the customers to another site for the login (OpenID/Google). Thanks.

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• Java - binary compatibility of abstract class & subclasses

  - by thSoft

  In Java, I define an abstract class with both concrete and abstract methods in it, and it has to be subclassed independently by third-party developers. Just to be sure: are there any changes I could make to the abstract class that are source compatible with their classes but not binary compatible? In other words: after they have compiled their subclasses, could I change the abstract class - apart from e.g. adding an abstract method to it or removing a protected method from it that is called by subclasses, which are of course source incompatible - in a way that could force them to recompile their subclasses?

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