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• Chipmunk warning still present with --release

  - by Kaliber64

  I'm using Python27 on Windows 7 64-bit. I downloaded the source for Chipmunk 6.2.x and compiled Pymunk with --release and -c ming32. Almost zero problems. Lots of path not found cause I'm bad. All prints seem to have disappeared but I get spammed with EPA iteration warnings. I've seen a couple discussions but no solutions. Possible chipmunk betas to fix the float errors causing the double truths causing the warning. I picked the latest stable version I think. My program is seriously bogged down with all the prints. class NullDevice(): def write(self, s): pass sys.stdout=NullDevice() Does not disable the C prints .< Any help?

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• SML/NJ incomplete match

  - by dimvar

  I wonder how people handle nonexhaustive match warnings in the SML/NJ compiler. For example, I may define a datatype datatype DT = FOO of int | BAR of string and then have a function that I know only takes FOOs fun baz (FOO n) = n + 1 The compiler will give a warning stdIn:1.5-1.24 Warning: match nonexhaustive FOO n = ... val baz = fn : DT - int I don't wanna see warnings for incomplete matches I did on purpose, because then I have to scan through the output to find a warning that might actually be a bug. I can write the function like this fun baz (FOO n) = n + 1 | baz _ = raise Fail "baz" but this clutters the code. What do people usually do in this situation?

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• Which development Language is best suited to Network Inventory

  - by dastardlyandmuttley

  Dear stackoverflow I hope this is the corrcet type of question for stackoverflow to consider I would like to develop a "Hard Core" application that performs Network Inventory. High level requirements are Work on Windows and UNIX networks it has to be extremly performant it has to be 100% accuarate (massively) scalable and fun to write The sort of details I am after is manufacturer and versions of all major workstation hardware components such as motherboard, network card, sound card, hard drives, optical drives, memory, BIOS details, operating system information etc. I dont want to have to distribute a client on each workstation to collect the information although i will require automatic worksattion discovery I would value your thoughts on the best development language to employ I know there are products such as NEWT and stuff like nmap... I would like to do this type of technical programming myself "from scratch" Warm Regards DD

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• How can I save BioPerl sequence nested features in genbank or embl format?

  - by Ryan Thompson

  In BioPerl, a sequence object can have any number of features, and each of these can have subfeatures nested within them. For example, a feature may be a complete coding sequence of a gene, and its subfeatures might be individual exons that are concatenated to form the full coding sequence. However, when I use BioPerl to write a sequence object to a file in genbank or embl format, only the top-level features are written to the file, not the sub-features nested within the top-level features. How can I store my subfeatures in sequence files? Should I just convert all my subfeatures into top-level features, and then reconstruct the tree structure next time I read in the sequence?

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• rails validate_format_of non-negative integers

  - by ash34

  Hi, I am trying to validate the format of non-negative integers with the following validates_format_of :fundays, :with => /\A[\d]+\Z/, :message => "invalid fundays" And here is the form field used in the view <%= f.text_field :fundays, :maxlength => 3, :style => 'width:50px;' %> However, when I input a non-digit into this field and submit the form, it does not fail the validation. Instead it saves a value of 0 in the database. How do I make it write to the list of error messages. thanks

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• OAuth on iPhone: using Safari or UIWebView?

  - by athanhcong

  Hi all, When I implement OAuth in iPhone, I have a dilemma to choose Safari or UIWebView to open the Twitter pages for user authentication? I write some advantage and disadvantage of both case: Using UIWebWeb. The disadvantage is users have to enter their credentials in our application. It's maybe risky phishing. The advantage is this approach will not quit our app. Using Safari for user to authenticate (this approach automatically callbacks to our application) Addvantage: less risky. Disadvantage: have to quit our app A good reference link about this: http://fireeagle.yahoo.net/developer/documentation/oauth_best_practice Which approach do you prefer? Any response is appreciate. Thanks.

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• ajax with WCF work. but few miniute after, doesn't work.

  - by sunglim

  hello. I am WCF pure newbie. I know this question could look like dumb. I used to write ajax with the Webservice. but on this project. I tried to use WCF for ajax. after I build the project. I try to call wcf ajax. and I can receive return successfully. But 10 or more minute after. I cann't receive return, and the ajax call the error function. and the fiddler return nothing. if I rebuild the project without any source modifying, I can receive ajax return successfully. such a weird situation. is their anybody who experience this? and know why ? Thank You.

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• Writing file from HttpWebRequest periodically vs. after download finishes?

  - by WB3000

  Right now I am using this code to download files (with a Range header). Most of the files are large, and it is running 99% of CPU currently as the file downloads. Is there any way that the file can be written periodically so that it does not remain in RAM constantly? private byte[] GetWebPageContent(string url, long start, long finish) { byte[] result = new byte[finish]; HttpWebRequest request; request = WebRequest.Create(url) as HttpWebRequest; //request.Headers.Add("Range", "bytes=" + start + "-" + finish); request.AddRange((int)start, (int)finish); using (WebResponse response = request.GetResponse()) { return ReadFully(response.GetResponseStream()); } } public static byte[] ReadFully(Stream stream) { byte[] buffer = new byte[32768]; using (MemoryStream ms = new MemoryStream()) { while (true) { int read = stream.Read(buffer, 0, buffer.Length); if (read <= 0) return ms.ToArray(); ms.Write(buffer, 0, read); } } }

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• Fit <TD> height to page

  - by ssg

  Consider a table with three rows with heights 10, *, 10. I'd like the middle cell to be high enough to fit to the page vertically. Unfortunately "height:100%" doesn't work at table, tr, or td level, possibly due to standards. Even if it happens to work, I don't want 100%, I want 100% of clientHeight-20px :) I can always write script to calculate remaining clientHeight but I wonder if it can be achieved in HTML/CSS standards. NOTE: I'm using table just for layout, if there are other ways to lay them down in a better way I'm ok with those approaches too.

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• C# streamreader, delimiter problem.

  - by Mike

  What I have is a txt file that is huge, 60MB. I need to read each line and produce a file, split based on a delimiter. I'm having no issue reading the file or producing the file, my complication comes from the delimiter, it can't see the delimiter. If anybody could offer a suggestion on how to read that delimiter I would be so grateful. delimiter = Ç public void file1() { string betaFilePath = @"C:\dtable.txt"; StringBuilder sb = new StringBuilder(); using (FileStream fs = new FileStream(betaFilePath, FileMode.Open)) using (StreamReader rdr = new StreamReader(fs)) { while (!rdr.EndOfStream) { string[] betaFileLine = rdr.ReadLine().Split('Ç'); { sb.AppendLine(betaFileLine[0] + "ç" + betaFileLine[1] + betaFileLine[2] + "ç" + betaFileLine[3] + "ç" + betaFileLine[4] + "ç" + betaFileLine[5] + "ç" + betaFileLine[6] + "ç" + betaFileLine[7] + "ç" + betaFileLine[8] + "ç" + betaFileLine[9] + "ç" + betaFileLine[10] + "ç"); } } } using (FileStream fs = new FileStream(@"C:\testarea\load1.txt", FileMode.Create)) using (StreamWriter writer = new StreamWriter(fs)) { writer.Write(sb.ToString()); } }

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• source control when starting up a new project

  - by jaras

  when starting with a project and using source control i find it hard to separate the things people are working on so they don't either write duplicate code or think it should be named one thing and so on. this problem diminishes over time because the general foundation is in place and it's easier to separate the tasks so they don't overlap as much how do you manage working with source control in the beginning phase? EDIT: I can see that it don't really have anything to do with source control, but it gets more apparent when you have source control too. so the question becomes more along the lines of "how do you manage to separate the tasks so they don't overlap too much. I think it's really hard and i haven't really seen much about how to do it.

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• Can I partition the C# System.Threading.ThreadPool?

  - by Drew Shafer

  I love ThreadPool. It makes my life better. However, my love may have quietly turned into an abusive relationship that I need to escape from, so I need some advice from my SO brothers (and presumably sisters, although I haven't seen any actual evidence of that yet). My basic problem is that I have several different libraries that are all using the threadpool in an uncoordinated way, and running out of threads is a possibility. I was hoping there was some way I could partition the ThreadPool up so I could give a certain class 1 thread, another 20 threads, another 5 threads, and so on. I know I could write my own ThreadPool implementation. I don't want to do that, because I'm lazy. So, is there a simple solution already out there? Currently I'm constrained to using the 3.5 CLR. I know a lot of this stuff becomes easier in 4.0.

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• How to make if loop in grails?

  - by user3569696

  I'm beginner in Grails, please help. I have this in my gsp <div class="right66"> <g:select class="time_pick" name="pick_day" placeholder="" from="${['Dani', 'Sati', 'Minute']}" valueMessagePrefix="book.category"/> </div> In translation: Dani=Days, Sati= Hours, Minute= Minutes. I need to save data in minutes but User have privilege to choose will his input be in minutes, days or hours. So i have to do if loop. I now how if loop works but i don't know how to wite it in grails. I was thinking something like this: n=1 if(params.type=Dani){ n= 3600 }else if(params.type=Sati) { n=60 } def minute=params.minute*n but how to call that choosen input "Dani"? I can't write Params.type=Dani. Does if loop go in controller in my case?

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• How do I test ActionFilterAttributes that work with ModelState?

  - by Tomas Lycken

  As suggested by (among others) Kazi Manzur Rashid in this blog post, I am using ActionFilterAttributes to transfer model state from one request to another when redirecting. However, I find myself unable to write a unit test that test the behavior of these attributes. As an example, this what I want the test for the ImportModelStateAttribute to do: Setup the filterContext so that TempData[myKey] contains some fake "exported" ModelState (that is, a ModelStateDictionary I create myself, and add one error to) Make ModelState contain one model error. Call OnActionExecuting. Verify the two dictionaries are merged, and ModelState now contains both errors. I'm at a loss already on the second step.

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• Converting delimited string to multiple values in mysql

  - by epo

  I have a mysql legacy table which contains an client identifier and a list of items, the latter as a comma-delimited string. E.g. "xyz001", "foo,bar,baz". This is legacy stuff and the user insists on being able to edit a comma delimited string. They now have a requirement for a report table with the above broken into separate rows, e.g. "xyz001", "foo" "xyz001", "bar" "xyz001", "baz" Breaking the string into substrings is easily doable and I have written a procedure to do this by creating a separate table, but that requires triggers to deal with deletes, updates and inserts. This query is required rarely (say once a month) but has to be absolutely up to date when it is run, so e.g. the overhead of triggers is not warranted and scheduled tasks to create the table might not be timely enough. Is there any way to write a function to return a table or a set so that I can join the identifier with the individual items on demand?

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• Critiquing my first Python script

  - by tipu

  A little bit of background: I'm building an inverted index for a search engine. I was originally using PHP, but because of the amount of times I needed to write to disk, I wanted to make a threaded indexer. There's a problem with that because PHP is not thread safe. I then tried Java, but I ended up with at least 20 try catch blocks because of the JSON data structure I was using and working with files. The code was just too big and ugly. Then I figured I should pick up some Python because it's flexible like PHP but also thread safe. Though I'm open to all criticism, what I'd like to learn is the shortcuts that the Python language/library provides that I skipped over. This is a PHP-afide Python script because all I really did was translate the PHP script line by line to what I thought was it's Python equivalent. Thanks. http://pastebin.com/xrg7rf9w

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• File not readable exception - pear/Config_Lite

  - by CasperNine

  I have two config files located in: /etc/svnauth and var/www/svnauth I have given read, write access to for both files like shown below chown -R apache:apache /etc/svnauth chmod -R 770 /etc/svnauth chown -R apache:apache /var/www/svnauth chmod -R 770 /var/www/svnauth When I try to read these two files using pear/Config_Lite, /etc/svnauth always fails. I can successfully read the /var/www/svnauth file Any reasons for this? What am I missing here Following is the error message i get: Fatal error: Uncaught exception 'Config_Lite_Exception_Runtime' with message 'file not readable: /etc/svnauth' in /var/www/html/svnmanager/Config/Lite.php:112 Stack trace: #0 /var/www/html/svnmanager/index.php(60): Config_Lite->read('/etc/svnauth') #1 {main} thrown in /var/www/html/svnmanager/Config/Lite.php on line 112

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• Ruby: writing a network redirector

  - by Shyam

  Hi, I would like to research protocols such as HTTP. As I am learning Ruby, I would like to write a program that works as a "gateway". I would be connecting to it's port on for example 8080 and the program should forward my request to the real host and send back the answers. The idea of my design is something like this: class EchoProxy def run # run a listening socket on port 8080 myinfiniteloop end def myinfiniteloop # continually run this loop unless the app is terminated puts traffic end end Some pointers in the right direction would be great! Thank you for your comments, answers and feedback!

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• If XmlException.SourceUri is read-only, what good is it?

  - by East of Nowhere

  I have a couple places in my code where it throwing a new System.Xml.XmlException seems appropriate. I could just do throw new XmlException("Your XML sucks go fix it then try again."); But I think it's better to take advantage whenever possible of members particular to the exception class (otherwise ya might as well throw a plain ol' Exception every time). SourceUri and LineNumber would be helpful, but they only have get methods, there's no way I can assign a value to them! There's only 3 constructor overloads and none of them have parameters for those members either; I can only initialize Message, nothing else. There has got to be some way to populate those data members with values, otherwise why does XmlException bother with them? I suppose I could make a new class that inherits XmlException and write a new constructor that initializes SourceUri etc. but still, there must be a way to just use XmlException. Right?

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• Windows 7 sharing data between users via the registry

  - by r99

  Where can I create/modify/delete registry keys to share data between users in the Windows 7 registry? Both of the users are non administrators and it shouldn't require admin privileges. The application I'm working on uses the registry to write a key from userA and then userB can read/modify/delete it. Neither user has admin privileges and it won't be possible to change this. Is there an official MSDN guide to how to use the registry in Windows 7? Any links describing proper use of the registry would be useful.

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• ASP.NET error when trying to configure ListView + SqlDatasource for a MySql Table

  - by stighy

  Hi, i'm using ASP.NET + a MySql Db. I'm trying to configure a ListView so i've written: <asp:SqlDataSource ID="dsDatiUtente" runat="server" ConnectionString="Server=12.28.136.29;Database=mydb;Uid=m111d1;Pwd=fake;Pooling=false;" ProviderName="MySql.Data.MySqlClient" SelectCommand="SELECT * FROM user WHERE idUser=@IdUser" / At the beginning of my aspx page i've added <%@ Import Namespace="MySql.Data.MySqlClient" %> But if i click to the sqldatasource and click "Refresh Schema" i got this error: "Unable to retrive schema.... Unable to find the requested .Net Framework data provider" For instance, i've installed it , but i've also uninstalled old version, then installed new versions. In my project i simple copy Mysql dll into "bin" folder, then add a reference to that dll. I'm not sure is the corrected way... I need to have the "refreshed schema" to permit vs.net to build automatically my listview ... if i can't to "auto build" listview, i have to write all code by hand, and it is a too expensive work me :( What i'm wrong ? Thank you!

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• scanf("%d", char*) - char-as-int format string?

  - by SF.

  What is the format string modifier for char-as-number? I want to read in a number never exceeding 255 (actually much less) into an unsigned char type variable using sscanf. Using the typical char source[] = "x32"; char separator; unsigned char dest; int len; len = sscanf(source,"%c%d",&separator,&dest); // validate and proceed... I'm getting the expected warning: argument 4 of sscanf is type char*, int* expected. As I understand the specs, there is no modifier for char (like %sd for short, or %lld for 64-bit long) is it dangerous? (will overflow just overflow (roll-over) the variable or will it write outside the allocated space?) is there a prettier way to achieve that than allocating a temporary int variable? ...or would you suggest an entirely different approach altogether?

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• Testing objects for changes

  - by David Veeneman

  I have an application that needs to determine whether a user has made a change to an object. So, when the object is first loaded, I create a deep copy (using serialization/deserialization) and save the copy to a separate field. The copy becomes myCurrentObject, and the original becomes myOriginalObject. Now I need to test myCurrentObject for changes, which I plan to do by comparing it to myOriginalObject. All I need is a boolean result indicating whether any changes have been made. I have already determined that a simple hashcode comparison won't work. GetHashCode() generates different results for the two objects, even when there are no changes. I am getting ready to write a method to do a property-by-property comparison, but before I do, I thought I would check to see if there is a simpler and more reusable way to test myCurrentObject to see if it has changed from myOriginalObject. Any suggestions? Thanks for your help.

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• Syncing an iPod or iPhone with Cocoa

  - by Koning Baard XIV

  I'm creating an iTunes clone in Cocoa (don't ask why, it's not evil) and I want to be able to sync my iPod with it. This means: music, photos, videos and podcasts. I couldn't really find anything, since Google only shows articles about iPod touch and iPhone programming, but I'm actually creating a desktop application for Mac OS X, and I also want to be able to sync click-wheel iPods. Is there an API or should I read and write directly to the USB port? Can anyone help me? Thanks

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• Powershell script to delete old files

  - by yantwill

  The following script will delete files in a named directory that are older than 14 days and write to a .txt with the path and the files deleted (found this script on another forum..credit to shay): dir c:\tmp -recurse | where {!$.PsIsContainer -AND $.lastWriteTime -lt (Get-Date).AddDays(-14) } | select LastWriteTime,@{n="Path";e={convert-path $_.PSPath}} | tee c:\oldFiles.txt | Remove-Item -force -whatif I have 3 questions: What is -lt and what is -le and what is -gt? When would I use each one The script above only deletes file...how can I delete folders as well? The script above is based off of LastWriteTime .. what about CreatedDate or LastAccessed time?

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