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• CMake & ExternalProject: Fails to find specific file

  - by Enrico

  Hi, we have some dependency libraries in our repository. The main part is build with cmake. Now the cmake-makefiles shall build the dependency libraries, which do not have a cmake build system. For one specific library there is a "Makefile.squirrel" which should be used. The cmakelists.txt for that library: cmake_minimum_required (VERSION 2.8) include(ExternalProject) ExternalProject_Add(squirrel, SOURCE_DIR "./" UPDATE_COMMAND "" BUILD_IN_SOURCE 1 CONFIGURE_COMMAND "" BUILD_COMMAND "make -f ${CMAKE_CURRENT_SOURCE_DIR}/Makefile.squirrel" INSTALL_COMMAND "" ) However, when running make I get an error message: [ 93%] Performing build step for 'squirrel,' /bin/sh: make -f /home/enrico/projekte/projectname/dependencies/SQUIRREL2/Makefile.squirrel: not found make[2]: *** [dependencies/SQUIRREL2/squirrel,-prefix/src/squirrel,-stamp/squirrel,-build] Error 127 make[1]: *** [dependencies/SQUIRREL2/CMakeFiles/squirrel,.dir/all] Error 2 make: *** [all] Error 2 ls -lA on /home/enrico/projekte/projectname/dependencies/SQUIRREL2/Makefile.squirrel shows that the file exists. Hardcoding the file path (not an option for the solution) does not work, too. any ideas or hints? Thanks, Enrico

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• How to calculate order (big O) for more complex algorithms (ie quicksort)

  - by bangoker

  I know there are quite a bunch of questions about big O notation, I have already checked Plain english explanation of Big O , Big O, how do you calculate/approximate it?, and Big O Notation Homework--Code Fragment Algorithm Analysis?, to name a few. I know by "intuition" how to calculate it for n, n^2, n! and so, however I am completely lost on how to calculate it for algorithms that are log n , n log n, n log log n and so. What I mean is, I know that Quick Sort is n log n (on average).. but, why? Same thing for merge/comb, etc. Could anybody explain me in a not to math-y way how do you calculate this? The main reason is that Im about to have a big interview and I'm pretty sure they'll ask for this kind of stuff. I have researched for a few days now, and everybody seem to have either an explanation of why bubble sort is n^2 or the (for me) unreadable explanation a la wikipedia Thanks!

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• Subversion and project management web based super tool. Like Team Foundation Server but not TFS.

  - by Rob Stevenson-Leggett

  Hi, We're currently looking at an IT upgrade and I'm after recommendations for a tool which can do some or all of the following. SVN management (authz, web viewer, commit log, diff) Create template projects (1 click e.g. create me a microsite with this name in svn and give these people access) Reporting on code churn, time spent on tasks on a per project basis User story management Basically like Team Foundation Server but that integrates with SVN properly (reason for this - we have a wide range of skill sets and not everyone can use a TFS client). Is there a combination of Trac plugins + something that can create trac instances (a la Dreamhost's admin panel) that can acheive this. On a side note, does anyone have any experience of version controlling designery type files - e.g. PSDs, Illustrator files. Any advice at all appreciated. Cheers, Rob

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• Dynamic openrowset in T-Sql Function or viable alternative?

  - by IronicMuffin

  I'm not quite sure how to phrase this. Here is the problem: I have 1-n items that I need to join to a different system (AS400) to get some data. The openrowset takes forever if I specify the where criteria outside of the openrowset, e.g.: select * from openrowset('my connection string', 'select code, myfield from myTable') where code = @code My idea was to create a function that takes in the item number and uses dynamic sql to inject it into the openrowset string, a la: declare @cmd varchar(1000) set @cmd = 'select * from openrowset('my connection string', ''select code, myfield from myTable where code = ' + @code + ''')' Apparently I can't use the insert.. exec.. strategy inside of a function. Is there any better way to achieve this? I was going to use this in joins where I needed the external data using cross apply. I'm not married to tvf and cross apply, but I do need a method of getting this data quickly. Thanks for any help.

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• Link all'interno di un campo testo

  - by aleds

  Ciao a tutti, nella Rails app che sto realizzando, l'utente ha la possibilita' di inserire un post (campo memo) con all'interno una URL. Ad esempio: "bla bla bla bla www.blabla.com bla bla bla ..." Nel mostrare tale post vorrei che www.blabla.com diventasse un link cliccabile (come avviene in twitter). Ovviamente deve essere fatto un parsing della url, immagino usando le espressioni regolari. Avete dei consigli in merito ? Esiste qualcosa di gia' fatto oppure inizio da subito a scrivere il codice :) ? Grazie Alessandro DS http://alex-on-rails.blogspot.com/

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• .NET pie chart: how to add text to slices and rotate chart

  - by Sajee

  The code below creates a 24 slice pie chart. How do I: Add text labels to each slice a la "Wheel of Fortune". Rotate the pie chart? I want it to spin like "Wheel of Fortune". private void DrawPieChart() { Graphics g = this.CreateGraphics(); g.Clear(this.BackColor); Rectangle rect = new Rectangle(0, 0, 300, 300); float angle = 0; Random random = new Random(); int sectors = 24; int sweep = 360 / sectors; for(int i=0; i&lt;24;i++) { Color clr = Color.FromArgb(random.Next(0, 255),random.Next(0, 255), random.Next(0, 255)); g.FillPie(new SolidBrush(clr), rect, angle, sweep); angle += sweep; } g.Dispose(); }

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• The Cleanest Reset for ARM Processor

  - by waffleman

  Lately, I've been cleaning up some some C code that runs on an ARM7 controller. In some situations (upgrade, fatal error, etc...) the program will perform a reset. Presently it just jumps to 0 and assumes that the start-up code will reinitialize everything correctly. It got me to thinking about what would be the best procedure a la "Leave No Trace" for an ARM reset. Here is my first crack at it: void Reset(void) { /* Disable interrupts */ __disable_interrupts(); /* Reset peripherals, externals and processor */ AT91C_BASE_RSTC->RSTC_RCR = AT91C_RSTC_KEY | AT91C_RSTC_PERRST | AT91C_RSTC_EXTRST| AT91C_RSTC_PROCRST; while(AT91C_BASE_RSTC->RSTC_RSR & AT91C_RSTC_SRCMP); /* Jump to the reset vector */ (*(void(*)())0)(); } Anything I haven't considered?

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• Overlapping two divs and 'clearing' their parent div

  - by brady8

  My CSS-fu is letting me down here: What I'd like to do is position two child divs to be overlapping: Using position: absolute; top: 0px; left: 0px; is the only way I know how, with the parent set to position: relative. The problem with this is that the child divs are taken out of the layout as per the CSS spec, shrinking the parent div to height: 0px, so that I can't clear that div and put any content below. My amazing ASCII art below details what I'm going for... any ideas? As an aside, I need these divs to be overlapping exactly for jQuery fades, and maybe trying out some of the new Webkit transforms, a la Apple's cardflip demo: http://developer.apple.com/safari/library/samplecode/CardFlip/Introduction/Intro.html If there's another way to get them overlapped exactly in CSS, I'm all ears. Thanks! |-------------------------------------------------| | Parent div | | |-------------------------------------------| | | | | | | | DIVS 1 & 2 (overlapped) | | | | | | | |-------------------------------------------| | |-------------------------------------------------| ...more content below, after clearing the parent...

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• How to use List<T>.Find() on a simple collection that does not implement Find()?

  - by Bilal

  Hi, I want to use List.Find() on a simple collection that does not implement Find(). The naive way I thought of, is to just wrap it with a list and execute .Find(), like this: ICollection myCows = GetAllCowsFromFarm(); // whatever the collection impl. is... var steak = new List<Cow>(myCows).Find(moo => moo.Name == "La Vache qui Rit"); Now, 1st of all I'd like to know, C#-wise, what is the cost of this wrapping? Is it still faster to 'for' this collection the traditional way? Second, is there a better straightforward way elegantly use that .Find()? Cheers!

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• How do I pass the currently logged in user's credentials to a web service using Integrated Windows A

  - by Chris Smith

  I am having a frustrating time trying to do something with Perl that would take a couple of lines of code in C#, namely to call a web service on a Windows server that requires Integrated Windows Authentication. The most likely candidate I've found for success is a module called LWP::Authen::Ntlm, but all the examples I've googled require you to explicitly supply username, password and domain. I don't want to do that - I just want the request to use the credentials of the currently logged in user, a la CredentialCache.DefaultCredentials in .NET. Have any of you Perl gurus out there ever had to do this? Thanks.

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• Posting comment with ajax and jquery

  - by Steve

  I want to display the posted comment once the user comments. Just to add it under all of them as facebook does. I have this: // Interceptamos el evento submit $('#CommentAddForm').submit(function() { alert("entro"); alert($(this).attr('action')); // Enviamos el formulario usando AJAX $.ajax({ type: 'POST', url: $(this).attr('action'), data: $(this).serialize(), // Mostramos un mensaje con la respuesta de PHP success: function(data) { $('#result').html(//????????????); } }); return false; }); But i don't know very well how it works and i dont know what should i write in the line $('#result').html(//????????????); The variable URL contains the route which inserts the comment in the DB. And it works well. Any idea? Thanks. By the way, i have been reading this answer: Ajax/jQuery Comment System But i still don't get it.

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• i2c on silicon image c8051f32x (using USBXpress)

  - by tosa

  I have the I2C (SMBus) working properly in this uC and have a VB GUI which can communicate over USB (using USBXpress) and do I2C transactions from the uC to a separate IC. The problem is that I am having the uC poll a register on the IC every 1s. When I do an asynchronous GUI I2C transaction, every once in a while, I believe it collides with the polling I2C transaction and all the I2C data gets shifted at the GUI (i.e., register 0x00's data shows up on register 0x01) . The I2C data in the IC looks correct (by spying on the I2C bus with a LA). What exactly is happening and how can I fix this?

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• Folders-like URL with PHP?

  - by Maxime

  Hi, ever since I added this htaccess to my website, I noticed a HUGE slowdown, and my error logs are filled with errors such as PHP Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource in page.php on line 79. I've got up to four of these per second. Most of the time it works though. The htaccess consisted of two similar rules: one with two GET vars, another one with only one. RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(.*)\/(.*)$ index.php?var1=$1&var2=$2 [L] Anyway, I just rewrote a PHP script that handles of all the strings and redirects where it should, and my website is now fast again. But is there a way to hide mypage.php?var1=la&var2=lu and still have URLs that look like folders? Thanks for your replies!

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• Is there a Tool for see files created with binary serialization?

  - by Néstor Sánchez A.

  I've working without problems serializating object graphs to and from files. Everything was fine until today: A dictionary, created in a constructor and NEVER deleted, was lost (null referece) just after deserialization from file, for the first time in more than a year doing the same without troubles. So, is there a Software Tool to look into binary serialization content showing a human/developer-readable version (a la Reflector) of what is stored? AKA: How to analyze (easy, no binary to IL translation. That would take months) binary serialized content? Thanks!

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• Manual metrics and treemap components

  - by Greg

  I have a problem with SonarQube. I use web API to inject manual metrics values for a project like this : curl -u nom:password -d "resource=<projet>&metric=<key de la metric>&val=<valeur>" http://localhost:8081/sonar/api/manual_measures One of these metrics is a percentage and this metric is declared as a Percentage value in Sonar in Settings = Manual Metrics window. I have a project with components and each project and components have this metric value. When I want to show this metric as a color metric in a "treemap of components" of widget, all the treemap is grey (as if values are not defined). But if I put mouse on the name of component in treemap, I saw the color metric value as a percentage value like this : myComponent - ncloc: 800 - myMetric: 84,0% Moreover, scale metric color does not appear in treemap title (after Size ncloc Color <my metric>).

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• Play 2.0 RESTful request post-processing

  - by virtualeyes

  In regard to this question I am curious how one can do post-request REST processing a la (crude): def postProcessor[T](content: T) = { request match { case Accepts.Json() => asJson(content) case Accepts.Xml() => asXml(content) case _ => content } } overriding onRouteRequest in Global config does not appear to provide access to body of the response, so it would seem that Action composition is the way to go to intercept the response and do post-processing task(s). Question: is this a good idea, or is it better to do content-type casting directly within a controller (or other class) method where the type to cast is known? Currently I'm doing this kind of thing everywhere: toJson( i18n("account not found") ) toJson( Map('orderNum-> orderNum) ) while I'd like the toJson/toXml conversion to happen based on accepts header post-request.

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• How to extend a website?

  - by eltados

  This is quite a concept idea. I would like to create a website that can be extend by different programmer a bit "a la facebook" Let's me explain i want to develop a very simple core application that for example would store images and i want to develop or allow external developer to develop web app that would be able to act on the image i can take this example of an OS that would store files and you can "install" different program for example to view the files or edit. How can i reproduce the model in the Web / cloud plateform using API ? I hope this question make sense to any body. Thank you by advance

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• Python:Comparing Two Dictionaries

  - by saun jean

  The first Dict is fixed.This Dict will remain as it is List of Countries with there Short Names. firstDict={'ERITREA': 'ER', 'LAOS': 'LA', 'PORTUGAL': 'PT', "D'IVOIRE": 'CI', 'MONTENEGRO': 'ME', 'NEW CALEDONIA': 'NC', 'SVALBARD AND JAN MAYEN': 'SJ', 'BAHAMAS': 'BS', 'TOGO': 'TG', 'CROATIA': 'HR', 'LUXEMBOURG': 'LU', 'GHANA': 'GH'} However This Tuple result has multiple Dict inside it.This is the format in which MySQLdb returns result: result =({'count': 1L, 'country': 'Eritrea'}, {'count': 1L, 'country': 'Togo'}, {'count': 1L, 'country': 'Sierra Leone'}, {'count': 3L, 'country': 'Bahamas'}, {'count': 1L, 'country': 'Ghana'}) Now i want to compare these both results With COUNTRY Names and If 'Country' in Result is present in firstDict then put the value.else put the 0 The result desired is: mainRes={'ER':1,'TG':1,'BS':3,'GH':0,'LU':0}

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• How can I implement the same behavior as Dictionary.TryGetValue

  - by pblasucci

  So, given then following code type MyClass () = let items = Dictionary<string,int>() do items.Add ("one",1) items.Add ("two",2) items.Add ("three",3) member this.TryGetValue (key,value) = items.TrygetValue (key,value) let c = MyClass () let d = Dictionary<string,int> () d.Add ("one",1) d.Add ("two",2) d.Add ("three",3) And the following test code let r1,v1 = d.TryGetValue "one" let r2,v2 = c.TryGetValue "one" The r1,v1 line works fine. The r2,v2 line bombs; complaining c.TryGetValue must be given a tuple. Interestingly, in each line the signature of TryGetValue is different. How can I get my custom implementation to exhibit the same behavior as the BCL version? Or, asked another way, since F# has (implicitly) the concept of tuple parameters, curried parameters, and BCL parameters, and I know how to distinguish between curried and tuple-style, how can I force the third style (a la BCL methods)? Let me know if this is unclear.

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• How to use autoconf with C++0x features

  - by themis

  What are the best practices for using autoconf in conjunction with shared_ptr and other TR1/BOOST C++0x templates so as to maximize portability and maintainability? With autoconf I can determine whether shared_ptr is available as std::tr1::shared_ptr and/or boost::shared_ptr. Given that the same feature has two different names, I have the following questions: In the code, how should shared_ptr be referenced? Should std::tr1::shared_ptr be preferred over boost::shared_ptr? For the first, the code is currently using preprocessor conditionals allowing non-qualified references to shared_ptr, a la #if HAVE_STD_TR1_SHARED_PTR using std::tr1::shared_ptr; #elif HAVE_BOOST_SHARED_PTR using boost::shared_ptr; #else #error "No definition for shared_ptr found" #endif Second, the code uses std::tr1:: over boost:: to minimize dependencies on external libraries (even if the the libraries are widely used). Are these two solutions common? Are there better ones?

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• Small, editable table of strings. Which Forms control do I want? (.NET)

  - by I. J. Kennedy

  I have a small array of structs, each struct has three fields, all strings. I want to display these structs in a grid, let the user edit the strings a la Excel, and then retrieve the edited strings of course. Which WinForms control is best for this? Tried a DataGridView but setting the DataSource to the array of structs doesn't seem to work. There are myriad controls with similar names but I can't figure out what does what. All the examples I've found are geared toward using a database as the data source--I just have a simple array.

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• REST authentication S3 like hmac sha1 signature vs symetric data encryption.

  - by coulix

  Hello stackers, I was arguing about an S3 like aproach using authorization hash with a secret key as the seed and some data on the request as the message signed with hmac sha1 (Amazon S3 way) vs an other developer supporting symetric encryption of the data with a secret key known by the emiter and the server. What are the advantage of using signed data with hmac sha1 vs symetric key other than the fact that with the former, we do not need to encrypt the username or password. What would be the hardest to break ? symetric encryption or sha1 hashing at la S3 ? If all big players are using oauth and similar without symetric key it is sure that there are obvious advantages, what are those ?

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• How to make flyspell bypass some words by context?

  - by manu

  Hi, I use Emacs for writing most of my writings. I write using reStructuredText, and then transform them to LaTeX after some preprocessing since I write my citations á-la LaTeX. This is an excerpt of one of my texts (in Spanish): En \cite[pp.~XXVIII--XXIX]{Crnkovic2002} se brindan algunos riesgos que se pueden asumir con el desarrollo basado en componentes, los This text is processed by some custom scripts that deals with the \cite part so rst2latex can do its job. When I activate flyspell-mode it signals most of the citation keys as spelling errors. How can I tell flyspell not to spellcheck things within \cite commands. Furthermore, how can I combine rst-mode and flyspell, so that rst-mode would keep flyspell from spellchecking the following? reST comments reST code literal reST directive parameters and arguments reST raw directive contents Any ideas?

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• help with using alias in bash shell

  - by ajsie

  i want to have an alias "t" to enter a folder and list the content there. i tried with: alias t="cd $1; ls -la" but it just listed the folder i typed but did not enter it. i wonder why? cause when i use this one: alias b="cd ..; ls" it went back to the parent and listed the content. so i want the "t" do enter the folder i type in too. someone knows how to do this right?

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• How might I escape Unicode characters in a JSON string using JavaScript?

  - by user293006

  JSON String: { "id":31896, "name":"Zickey attitude - McKinley, La Rosi\u00e8re, 21 ao\u00fbt 2006", ... } this causes an unterminated string in JavaScript. My attempt at a solution is: data.replace(/(\S)\1(\1)+/g, ''); or data.replace(/\\u([0-9A-Z])/, ''); any ideas/solution? Example: http://api.jamendo.com/get2/id+name+url+stream+album_name+album_url+album_id+artist_id+artist_name/track/jsonpretty/track_album+album_artist/?n=13&order=ratingmonth_desc&tag_idstr=jazz last node is the problem, fyi. (/\\u([0-9A-Z])/, '\1');

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