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  • Where can I find a description of the old British Standard structured flow charts?

    - by Steve314
    Some professional organisation defined these in, IIRC, the early 80s as similar to the more well known flow charts, but "structured". Instead of having arbitrary "goto" arrows, they had the equivalent of loops etc. They were standardized, and I vaguely remember studying them briefly at O Level. Of course they were about as useful as the well-known chocolate teapot, but I'd still like to be able to find a reference guide for them if possible - for roughly the same reason I was looking for a reference for standard Basic a while back. Google tells me - well, nothing really. They may as well never have existed. Which is probably nearly (and perhaps completely) true - I certainly never heard of them anywhere else except when I was at school. There's a chance that they may even be my computer science teachers little joke.

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  • Copy hashtable to another hashtable using c++

    - by zengr
    I am starting with c++ and need to know, what should be the approach to copy one hashtable to another hashtable in C++? We can easily do this in java using: HashMap copyOfOriginal=new HashMap(original); But what about C++? How should I go about it? UPDATE Well, I am doing it at a very basic level,perhaps the java example was a wrong one to give. This is what I am trying to implement using C++: I have this hash array and each element of the array point to the head of a linked list. Which has it's individual nodes (data and next pointer). And now, I need to copy the complete hash array and the linked list each node is pointing to.

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  • Using recursion to find paths in a 2D array

    - by rikkit
    Hi, I'm working on a project for my A level. It involves finding the maximum flow of a network, and I'm using javascript. I have a 2D array, with values in the array representing a distance between the two points. An example of the array: 0 2 2 0 0 0 1 2 0 0 0 2 0 0 0 0 I think I need to use a recursive technique to find a path; below is some pseudocode, assuming that the array is 4x4. a is (0,0), b is (3,3). function search(a,b) from a to b if element(i,j) != 0 then store value of element search(j,3) I was wondering if that was the right construction for a depth first search. Thanks for any help.

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  • spring.net application scope repository object on loadbalanced application

    - by Bert Vandamme
    Hi, We have an application running on a loadbalanced environment, let say webserver A and B. The loadbalancing is on the HTTP level, so the loadbalancer directs each user request to one of both webservers. The scope of the repositories in the application is managed by the spring.net container, and the application relies on data that can be cached by the repository (performance reasons). In this case we can never be sure that the cached data in the repositories on both webservers is the same. Is there mechanism in spring.net that can manage this kind problem? Or is there another common approach for this kind of thing? Any ideas? Thx, Bert

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  • How to implement didReceiveMemoryWarning ?

    - by hib
    Hello all , I have developed a simple location aware iPhone application which is functionally working very well to our expectations except in the low memory condition of the phone . In low memory condition of the phone my app just got crashes and If I increases the phone memory by freeing up some space it again start working well without any crash . when I do some googling on the problem I found that in the low memory conditions the os will send didReceiveMemoryWarning to all the controllers in the current hierarchy so that each one of them should implement didReceiveMemoryWarning method and also set nil to iboutlet for the view that is currently not visible . I have also read somewhere that if the view for that controller is not visible the method setView with nil parameter will be called and if there are some outlet variables attached to view there will be problem in removing them. So with all these fundas what is the best to handle low level memory condition raised by the Iphone by implementing the didReceiveMemoryWarning and viewDidUnload methods. Please give a proper example or link if possible for the solution of the above problem . thanks.

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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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  • parse Linq To Xml with attribute nodes

    - by Manoj
    I am having xml with following structure <ruleDefinition appId="3" customerId = "acf"> <node alias="element1" id="1" name="department"> <node alias="element2" id="101" name="mike" /> <node alias="element2" id="102" name="ricky" /> <node alias="element2" id="103" name="jim" /> </node> </ruleDefinition> Here nodes are differentiated using alias and not with node tag. As you can see top level node element1 has same node name "node" as element2. I want to parse this XML based on attribute alias. What should be the Linq-To-Xml code (using C#)to acheive this?

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  • Boolean Expression Evaluation in Java

    - by Trilok
    Hey everyone, Is there a relatively simpler (when compared with writing a parser) way to evaluate boolean expressions in Java? I do not want to use the JEP library. I have a String expression something like: (x 4 || x < 8 && p 6) [ I will replace the variables with values. Is there a way by which I can evaluate this expression? The problem is, this can be any level deep. So, writing a parser would be really complex. Thanks

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  • What technical skills needed for algorithmic trading, HFT, etc?

    - by alchemical
    I'm interested in getting into developing trading systems, black box, HFT, etc. My primary experience is with C# and .Net (7 years). I've also done some sockets programming. I have some experience in finance working on analysis applications (2 years). My goal is to move into developing automated trading systems for a hedge fund, bank, etc. Is there any way to learn the skills needed for this without somehow getting the job first? I've looked at the open source tradelink, IB interactive brokerage, etc. I'm playing around with this framework, and may hook it up and do some paper trading. However, I'm not sure if this has much relationship with how a well-funded entity would be conducting a high-level automated trading operation. I.e. would the tools and frameworks they prefer be a totally different skill-set? Also wondering if I need to learn C++ and/or Java for these types of apps.

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  • Visual Studio 2008 "Publish" option generates some empty folders

    - by Kevin Pang
    When I right click an ASP.NET MVC solution and select the "Publish" option, the final output it generates contains several empty top-level folders. For instance, the "Service References" folder that gets automatically added when you add a service reference to a web app is generated without any files in it. Why are these folders generated at all if there's no content in them? Is there a way to let Visual Studio know to not bother publishing them? This isn't a big deal since it doesn't really affect the app (and before deploying I can always delete the empty folders), but it's a little annoying.

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  • Which Android phone to use for development...?

    - by Nikos
    Hi, I'm planning to port a couple of games from iPhone/Windows Mobile to the Android platform. The games are written in C++ so I plan to use the NDK with a thin java wrapper. I'm new to the Android platform and need some advice on which phone to buy for development. I suspect like Windows Mobile there is a level of fragmentation with different phones supporting different features (keyboard/ rotation/ screen size/ capacitive touch screen/ etc). What are the best device(s) for development on the Android platform...? They also have to be available in the UK/Europe. Thank you in advance. Nikos.

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  • How do I insert into a unique key into a table?

    - by Ben McCormack
    I want to insert data into a table where I don't know the next unique key that I need. I'm not sure how to format my INSERT query so that the value of the Key field is 1 greater than the maximum value for the key in the table. I know this is a hack, but I'm just running a quick test against a database and need to make sure I always send over a Unique key. Here's the SQL I have so far: INSERT INTO [CMS2000].[dbo].[aDataTypesTest] ([KeyFld] ,[Int1]) VALUES ((SELECT Max([KeyFld]) FROM [dbo].[aDataTypesTest]) + 1 ,1) which errors out with: Msg 1046, Level 15, State 1, Line 5 Subqueries are not allowed in this context. Only scalar expressions are allowed. I'm not able to modify the underlying database table. What do I need to do to ensure a unique insert in my INSERT SQL code?

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  • Recommendations on SharePoint site permission model

    - by Sachin
    Hi All, I have a SharePoint site which contains a root site and site collection in it. Now there are some sites that inherits permissions from their parent site and some site has their own permission module. Now a user from owner group of root site browses site collection but there are few site which doesn't allow user to view the content of it. Now what I want is general recommendation on when creating a new site in SharePoint what is best possible approach to set site permission. In what case we can inherits permissions from parent site..? In what case we can we us unique permission for a site..? If a site has unique permission set then is it possible to creat a group at root level which has access to all site collection irrespective of site permission model? I want a general recommendation based on above scenario. Any help will be appriciable. Thanks Sachin

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  • Trouble setting a default controller in MVC 2 RC Area

    - by mannish
    This should be simple, but alas... I've set up an Admin area within my MVC 2 project (single project areas). I've created a couple controllers and their respective view folders. In the AreaRegistration.RegisterArea method, I've specified that I want the default controller to be "Dashboard": public override void RegisterArea(AreaRegistrationContext context) { context.MapRoute( "Admin_default", "Admin/{controller}/{action}/{id}", new { controller = "Dashboard", action = "Index", id = "" }, new string[] { "Admin" } ); } If I navigate to url/Admin/Dashboard, the index comes up just fine. What I want, though, is to allow the user to go to url/Admin/ and see the same thing. When I do this, however, I get "The resource cannot be found". I'm just getting my feet wet with MVC 2's Area implementation, and I don't think I'm doing anything overly complicated... Anyone had the same problem? Do I need to specify a separate route, perhaps at the root, non-area level?

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  • How to avoid the "divide by zero" error in SQL?

    - by Henrik Staun Poulsen
    I hate this error message: Msg 8134, Level 16, State 1, Line 1 Divide by zero error encountered. What is the best way to write SQL code, so that I will never see this error message again? I mean, I could add a where clause so that my divisor is never zero. Or I could add a case statement, so that there is a special treatment for zero. Is the best way to use a NullIf clause? Is there better way, or how can this be enforced?

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  • NLog not logging messages on XP SP3 with .NET 3.5 Client Profile

    - by oltman
    I'm writing a program that is targeting the .NET 3.5 Client Profile and using NLog. I configure my logger programmatically on start up (no config file.) It works perfectly on Vista and Windows 7, but when running on a fresh install of XP SP3 with the .NET Client Profile installed, it will not log any of the variables in the layout string. For example, with the layout string set to: target.Layout = "MESSAGE: ${longdate}|${level}|${message}"; It will log "MESSAGE: | | |" Again, this only happens on XP SP3, and the logger is set to throw exceptions. Any ideas what may be causing this?

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  • Diff tool to align shuffled lines

    - by Ken Bloom
    Suppose I have two documents that are identical except the lines are shuffled. Is there a tool that can show me which lines in document A correspond to which lines on document B by drawing lines to connect them (kinda like Cairo does for machine translation word alignments)? What if the files have some level of differing lines (I don't want to figure out which lines are similar to each other -- if there isn't an exact match for a line, then that line has no match.) Note: I am not looking to sort the files and compare them, rather I am looking to get a visualization of how far out of order the files are relative to each other, and which particular regions tend to move together, and which tend to be shuffled.

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  • How to scan the wireless devices which exist on the network

    - by amexn
    Now my team working in a network project using windows application c#. How to scan the wireless devices which exist on the network.The functionality is exactly the same thing that you see in the existing windows utilities within the windows operating system. I'm sure you experienced when you plug a wireless laptop card in, it brings up a window that shows you all of the access points it detects for connecting to. How to capture this information listed below MAC Address IP Address SSID Channel Timestamp Cipher type Encryption level Signal Strength Did i use Kismet or NetStumbler. Please suggest good library/code

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  • ORA-22835 using JPA (Buffer too small)

    - by Kenneth
    I am trying to persist an Entity with a @Lob annotated String field. The content of that fiels if bigger than the 40k buffer size limit. The first problem I had was related to the setString method used internally by the JPA implementation (Hibernate in my case) and the Oracle JDBC Driver. This problem was solved adding <property name="hibernate.connection.SetBigStringTryClob" value="true"/> to my persistence.xml file. Then, the error changed to a ORA-22835 error (the buffer is too small). ¿Is there any way that JPA solves this problem without going to a low-level implementation? ¿Any suggestions?

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  • Daubechies-4 Transform in MATLAB

    - by Myx
    Hello: I have a 4x4 matrix which I wish to decompose into 4 frequency bands (LL, HL, LH, HH where L=low, H=high) by using a one-level Daubechies-4 wavelet transform. As a result of the transform, each band should contain 2x2 coefficients. How can I do this in MATLAB? I know that MATLAB has dbaux and dbwavf functions. However, I'm not sure how to use them and I also don't have the wavelet toolbox. Any help is greatly appreciated. Thanks.

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  • apache mod-rewrite issue

    - by mike
    I've modified my .htaccess file to have the following statement RewriteCond $1 !^index.php$ RewriteRule ^/?([^/]+)$ index.php?c=home&m=details&seo=$1 [L,NS] This allows me to use product URL's like this: http://domain.com/product_name However, when trying to access a file at the same level as index.php, it always calls the RewriteRule above and errors out. I need to be able to access files like below, but each URL currently attempts to load index.php. http://domain.com/about.htm http://domain.com/terms.htm http://domain.com/robots.txt etc Any suggestions on how I can modify my htaccess file to get this to work correctly?

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  • Best online course for C#/SQL for a professional engineer

    - by Rich
    I know similar questions have been asked, but I've not been able to find information specific to my situation. I'm looking for "continuing education"-type options, specifically a C# and/or SQL course. I'm a software engineering professional with a graduate level computer science degree. So I'm looking for something substantial that will be challenging. I certainly already have me feet wet in both C# and SQL I'm just looking for a more formal training to round out the edges. There is a good chance my company will pay for it if it is reasonably priced so it doesn't have to be free and preferably shouldn't be (a certificate or certification to come out of it would be nice). When I tried Google, all I found were things that sounded like crash courses (like a 3 day course or course for "dummies"), or course that did not seem very credible. Can anyone recommend a course of action for this? Thanks!

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  • PHP Explode with an Unicode character as separator

    - by Young Roger
    XPDFs pdftotext converts pdf to text and outputs it at command line level. If needed it inserts PageBreaks between the pages as specified in TextOutputDev.cc: eopLen = uMap->mapUnicode(0x0c, eop, sizeof(eop)); This Unicode symbol is encoding independent, -enc ASCII7 wouldn't change it. I'm currently willing to use PHP for converting and splitting the PDF file into several TXT pages for database storage. However, the following function does work, but takes twice as long as a conversion of the whole book in one time. for($i = 1; $i <= $pages[0]; $i++) $page[$i] = shell_exec('/usr/bin/pdftotext sample.pdf -f '.$i.' -l '.$i.' -'); How am I supposed to explode(0x0c, $wholePDF) with an Unicode character as separator? Currently, page[$i] doesn't seem to retrieve those weird Unicode PageBreak characters from the shell_exec(). I tried several headers for encoding (UTF-8 especially) but it didn't work out so far.

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  • Locating binding errors

    - by softengine
    I'm dealing with a large WPF application that is outputting a large number of binding errors. A typical error looks like this: System.Windows.Data Error: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.Controls.ItemsControl', AncestorLevel='1''. BindingExpression:Path=HorizontalContentAlignment; DataItem=null; target element is 'MenuItem' (Name=''); target property is 'HorizontalContentAlignment' (type 'HorizontalAlignment') Problem is I don't know where in the app this is coming from. Searching the entire solution for AncestorType={x:Type ItemsControl} doesn't necessary help since I still don't know which result is the culprit. I've tried setting PresentationTraceSources.DataBindingSource.Switch.Level = SourceLevels.All; but the extra information doesn't help locate the problematic bindings. File names and line numbers is really what I need. Is there anyway to get this information?

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  • How to create a folder for each item in a directory?

    - by Adrian Andronic
    I'm having trouble making folders that I create go where I want them to go. For each file in a given folder, I want to create a new folder, then put that file in the new folder. My problem is that the new folders I create are being put in the parent directory, not the one I want. My example: def createFolder(): dir_name = 'C:\\Users\\Adrian\\Entertainment\\Coding\\Test Folder' files = os.listdir(dir_name) for i in files: os.mkdir(i) Let's say that my files in that directory are Hello.txt and Goodbye.txt. When I run the script, it makes new folders for these files, but puts them one level above, in 'C:\Users\Adrian\Entertainment\Coding. How do I make it so they are created in the same place as the files, AKA 'C:\Users\Adrian\Entertainment\Coding\Test Folder'?

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