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  • make error in re-building ns2

    - by user3702405
    I have implemented a new routing protocol named AODV2 in ns-2.35. I am using ns-2.35 in fedora 13. All .cc files have a .o file with them that means recompilation is done. But I am getting an error in response to the 'make' command. Error is shown below: trace/cmu-trace.o: In function hdr_aodv2::access(Packet const*)': cmu-trace.cc:(.text._ZN9hdr_aodv26accessEPK6Packet[hdr_aodv2::access(Packet const*)]+0x7): undefined reference tohdr_aodv2::offset_2' collect2: ld returned 1 exit status make: * [ns] Error 1 I don't know how to remove this error, Can anyone help me please? Thanks, Naeem

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  • a java applet question

    - by Robert
    Hello there. I have a question on the java applet.I've created a java applet,which is a board game,that can have a 2*2 array with row number and column number both set to 9 by default. Now I want to extend my applet a bit,that the user can specify the size they want on the command-line,then the applet class will create an applet with correspoding size. I try to add a constructor in the applet class,but the Eclipse complains,I also tried another class,which will create an instance of this applet with size as an instance variable,but it is not working. Could anyone help me a little bit on where to put a main() method that can take care of user-specified board sized,then create an array in my applet class accordingly? Thanks a lot. Rob

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  • MDX query- How do I use a member property?

    - by WaggingSiberian
    I'm a complete newb to MDX / OLAP, "data warehousing" in general. I have the following MDX query and would like my results to display the month's number (1 = January, 12 = December). Luckily, the cube creator create a member property named "Month Number Of Year" When I try to run the query, I get the following... "Query (4, 8) The function expects a tuple set expression for the 1 argument. A string or numeric expression was used." Any suggestions for fixing this? Thanks! WITH MEMBER [Measures].[Tmp] as '[Measures].[Budget] / [Measures].[Net Income]' SELECT {[Date].[Month].Properties("Month Number Of Year")} ON COLUMNS, {[Measures].[Budget],[Measures].[Net Income],[Measures].[Tmp]} ON ROWS FROM [AnalyticsCube]

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  • Why am I getting "Enter Parameter Value" when running my MS Access query?

    - by DanM
    In my query, I use the IIF function to assign either "Before" or "After" to a field named BeforeOrAfter using AS. When I run this query, however, the "Enter Parameter Value" dialog appears, requesting a value for BeforeOrAfter. If I remove BeforeOrAfter DESC from the ORDER BY clause, I don't get the dialog. Here is the offending query: SELECT d.Scenario, e.Event, IIF(d.LogTime < e.Time, 'Before','After') AS BeforeOrAfter, d.HeartRate FROM Data d INNER JOIN Events e ON d.Scenario = e.Scenario WHERE e.Include = Yes ORDER BY d.Scenario, e.Id, BeforeOrAfter DESC Question: Why is my AS BeforeOrAfter not being recognized by the ORDER BY clause? Why does it ask me to enter a parameter value for "BeforeOrAfter" when I run this query? Note: I tried using brackets, single quotes, double quotes, etc., but none of that made any difference.

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  • Design support for templated UserControl

    - by SaphuA
    Hello, I have created a real simple templated UserControl using the following tutorial: http://msdn.microsoft.com/en-us/library/36574bf6(VS.80).aspx I can now add this control to my mvc 2.0 application using: <components:Box BoxType="Help" Title="Content Title" runat="server"> <Content> <%: Html.TextBox("test") %> This is my awesome content!<br /> <b>Test</b> </Content> </components:Box> However, when I go to the designer, I get an exception: Type 'System.Web.UI.UserControl' does not have a public property named 'Content'. How can I fix this? I don't even need to use the drag-and-drop designer, just rendering the control will do fine. Thanks!

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  • How to import *.pyc file from different version of python?

    - by Almog
    Hello, I used python 2.5 and imported a file named "irit.py" from C:\util\Python25\Lib\site-packages directory. This files imports the file "_irit.pyc which is in the same directory. It worked well and did what I wanted. Than, I tried the same thing with python version 2.6.4. "irit.py" which is in C:\util\Python26\Lib\site-packages was imported, but "_irit.pyc" (which is in the same directory of 26, like before) hasn't been found. I got the error message: File "C:\util\Python26\lib\site-packages\irit.py", line 5, in import _irit ImportError: DLL load failed: The specified module could not be found. Can someone help me understand the problem and how to fix it?? Thanks, Almog.

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  • Table/column names enclosed in square brackets, even though their names consist of legal characters

    - by AspOnMyNet
    Square brackets allow you to use names for columns or aliases that contain characters not permitted for column names or aliases. a) I’ve noticed that lots of times table and column names are enclosed inside square brackets, even though their names consist of perfectly legal characters. Why is that? b) As far as I know, square brackets enclosing object’s name aren’t actually a part of that name. Thus, if we create a table named [A]: CREATE TABLE [A] ( … ) we can later reference it without using brackets: SELECT * FROM A But why isn’t the same true when I try to reference a column KEY from a table returned by CONTAINSTABLE function? Namely, if I omit the brackets enclosing column name, I get an error: SELECT ct.KEY FROM CONTAINSTABLE(fullText,*,'some_string') as ct thanx

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  • Interview - Program on Computer

    - by Gilad Naor
    Spent some time searching, couldn't find exactly what I'm after. We like giving hands-on programming exercises as part of the interview process. The interviewee gets a laptop, with the editor and compiler of his choice. He or she then get a programming exercise and has about an hour to code it. Depending on the nature of the question, internet access is either allowed or forbidden. I'm looking for good general questions for a junior developer. I don't care what language they choose to program in. C++ is as good as Python or Scheme, as long as (s)he can program in it (this rules out "can you write a correct copy-constructor" style questions). I just want to see how they code, if their code is self-documenting, if they write tests, check edge-cases, etc. What kind of questions would you ask?

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  • SQL server 2005 - Any one have any idea?, i want to write the script so tuser have access that new c

    - by Paresh
    i have created one user named tuser with create database rights in SQL server 2005. and given the 'db_owner' database role of master and msdb database to tuser . From this user login when i run the script for create database then it will create new database. But tuser don't have access that newly created database generated from script. Any one have any idea?, i want to write the script so tuser have access that new created database after creation and can have add user permission of newly created database.

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  • How do I do a grouping by year?

    - by kibyegn
    I have a books model with a date type column named publish_date. On my views I'm iterating through the books and I want to group the books by year such that I have a heading for every year and books that were published on that year to be listed below the year heading. So by starting with "2010" all books published on 2010 would be listed, then another heading "2009" with all books published in 2009 listed below it and so forth. <% @all_books.each do |book| %> <%=link_to book.title + ", (PDF, " + get_file_size(book.size) + ")" %> <% end %> By doing a book.publish_date.strftime("%Y") I am able to get the year but I do not know how to group the entries by year. Any help on this would be appreciated.

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  • Trees and macros with tikz

    - by Tsf
    I am trying to build my trees using macros but I don't get the result I want. Here is a minimal example: \documentclass{article} \usepackage{tikz} \usetikzlibrary{trees} \newcommand{\LeafNode}[1]{% child {node {#1}} } \newcommand{\InnerNode}[3]{% child {node {#3} #1 #2 } } \begin{document} \begin{tikzpicture} \node (A) {A} \LeafNode{B} \LeafNode{C} ; \end{tikzpicture}% \hspace{2cm}% \begin{tikzpicture} \node (A) {A} \InnerNode{\LeafNode{D}}{\LeafNode{E}}{B} \LeafNode{C} ; \end{tikzpicture} \end{document} I expected this to produce two trees: A A / \ / \ B C B C / \ D E but I am getting: A | A B | | B D | | C C Am I missing something or there is no way to do it? BTW, if I omit the label on my root node, I get a PGF error: ! Package pgf Error: No shape named is known. -- Tsf

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  • How to mutate rows of data frame - replacing one value with another

    - by rhh
    I'm having trouble with what I think is a basic R task. Here's my sample dataframe named 'b' Winner Color Size Tom Yellow Med Jerry Yellow Lar Jane Blue Med where items in the Winner column are factors. I'm trying to change "Tom" in the dataframe to "Tom LLC" and I can't get it done. Here's what I tried: Simple way: b$winner[b$winner=='Tom'] = as.factor('Tom LLC') but that failed with "invalid factor level, NAs generated" Next I tried a more advanced route: name_reset = function (x, y, z) { if (x$winner == y) {x$winner = z} } b = adply(b,1,name_reset,'Tom','Tom LLC') but that failed with "Error in list_to_dataframe(res, attr(.data, "split_labels")) : Results are not equal lengths" I feel I'm missing something basic. Can someone redirect me or offer suggestions on the code I wrote above? Thank you very much

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  • Scala and the Java Memory Model

    - by Ben Lings
    The Java Memory Model (since 1.5) treats final fields differently to non-final fields. In particular, provided the this reference doesn't escape during construction, writes to final fields in the constructor are guaranteed to be visible on other threads even if the object is made available to the other thread via a data race. (Writes to non-final fields aren't guaranteed to be visible, so if you improperly publish them, another thread could see them in a partially constructed state.) Is there any documentation on how/if the Scala compiler creates final (rather than non-final) backing fields for classes? I've looked through the language specification and searched the web but can't find any definitive answers. (In comparison the @scala.volatile annotation is documented to mark a field as volatile)

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  • google link for the RGBA library?

    - by Navruk
    I want google link for the RGBA library <script type='text/javascript' src='jquery.color-RGBa-patch.js'></script> This file contains /* * jQuery Color Animations */ (function(jQuery){ // We override the animation for all of these color styles jQuery.each(['backgroundColor', 'borderBottomColor', 'borderLeftColor', 'borderRightColor', 'borderTopColor', 'color', 'outlineColor'], function(i,attr){ jQuery.fx.step[attr] = function(fx){ if ( fx.colorFunction == undefined || fx.state == 0 ) { fx.start = getColor( fx.elem, attr ); fx.end = getRGB( fx.end ); if ( fx.start == undefined ) { fx.start = [ 255,255,255,0 ]; } else { if ( fx.start[3] == undefined ) // if alpha channel is not spotted fx.start[3] = 1; // assume it is fully opaque if ( fx.start[3] == 0 ) // if alpha is present and fully transparent fx.start[0] = fx.start[1] = fx.start[2] = 255; // assume starting with white } if ( fx.end[3] == undefined ) // if alpha channel is not spotted fx.end[3] = 1; // assume it is fully opaque fx.colorFunction = ( fx.start[3] == 1 && fx.end[3] == 1 ? calcRGB : calcRGBa ); } fx.elem.style[attr] = fx.colorFunction(); } }); var calcRGB = function() { return 'rgb(' + Math.max(Math.min( parseInt((this.pos * (this.end[0] - this.start[0])) + this.start[0]), 255), 0) + ',' + Math.max(Math.min( parseInt((this.pos * (this.end[1] - this.start[1])) + this.start[1]), 255), 0) + ',' + Math.max(Math.min( parseInt((this.pos * (this.end[2] - this.start[2])) + this.start[2]), 255), 0) + ')'; }; var calcRGBa = function() { return 'rgba(' + Math.max(Math.min( parseInt((this.pos * (this.end[0] - this.start[0])) + this.start[0]), 255), 0) + ',' + Math.max(Math.min( parseInt((this.pos * (this.end[1] - this.start[1])) + this.start[1]), 255), 0) + ',' + Math.max(Math.min( parseInt((this.pos * (this.end[2] - this.start[2])) + this.start[2]), 255), 0) + ',' + Math.max(Math.min( parseFloat((this.pos * (this.end[3] - this.start[3])) + this.start[3]), 1), 0) + ')'; }; // Color Conversion functions from highlightFade // By Blair Mitchelmore // http://jquery.offput.ca/highlightFade/ // Parse strings looking for color tuples [255,255,255] function getRGB(color) { var result; // Check if we're already dealing with an array of colors if ( color && color.constructor == Array && color.length >= 3 ) return color; // Look for rgb(num,num,num) if (result = /rgba?\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,?\s*((?:[0-9](?:\.[0-9]+)?)?)\s*\)/.exec(color)) return [ parseInt(result[1]), parseInt(result[2]), parseInt(result[3]), parseFloat(result[4]||1) ]; // Look for rgb(num%,num%,num%) if (result = /rgba?\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,?\s*((?:[0-9](?:\.[0-9]+)?)?)\s*\)/.exec(color)) return [parseFloat(result[1])*2.55, parseFloat(result[2])*2.55, parseFloat(result[3])*2.55, parseFloat(result[4]||1)]; // Look for #a0b1c2 if (result = /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(color)) return [parseInt(result[1],16), parseInt(result[2],16), parseInt(result[3],16)]; // Look for #fff if (result = /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(color)) return [parseInt(result[1]+result[1],16), parseInt(result[2]+result[2],16), parseInt(result[3]+result[3],16)]; // Otherwise, we're most likely dealing with a named color var colorName = jQuery.trim(color).toLowerCase(); if ( colors[colorName] != undefined ) return colors[colorName]; return [ 255, 255, 255, 0 ]; } function getColor(elem, attr) { var color; do { color = jQuery.curCSS(elem, attr); // Keep going until we find an element that has color, or we hit the body if ( color != '' && color != 'transparent' || jQuery.nodeName(elem, "body") ) break; attr = "backgroundColor"; } while ( elem = elem.parentNode ); return getRGB(color); }; // Some named colors to work with // From Interface by Stefan Petre // http://interface.eyecon.ro/ var colors = { aqua:[0,255,255], azure:[240,255,255], beige:[245,245,220], black:[0,0,0], blue:[0,0,255], brown:[165,42,42], cyan:[0,255,255], darkblue:[0,0,139], darkcyan:[0,139,139], darkgrey:[169,169,169], darkgreen:[0,100,0], darkkhaki:[189,183,107], darkmagenta:[139,0,139], darkolivegreen:[85,107,47], darkorange:[255,140,0], darkorchid:[153,50,204], darkred:[139,0,0], darksalmon:[233,150,122], darkviolet:[148,0,211], fuchsia:[255,0,255], gold:[255,215,0], green:[0,128,0], indigo:[75,0,130], khaki:[240,230,140], lightblue:[173,216,230], lightcyan:[224,255,255], lightgreen:[144,238,144], lightgrey:[211,211,211], lightpink:[255,182,193], lightyellow:[255,255,224], lime:[0,255,0], magenta:[255,0,255], maroon:[128,0,0], navy:[0,0,128], olive:[128,128,0], orange:[255,165,0], pink:[255,192,203], purple:[128,0,128], violet:[128,0,128], red:[255,0,0], silver:[192,192,192], white:[255,255,255], yellow:[255,255,0] }; })(jQuery);

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  • Using free function as pseudo-constructors to exploit template parameter deduction

    - by Poita_
    Is it a common pattern/idiom to use free functions as pseudo-constructors to avoid having to explicitly specify template parameters? For example, everyone knows about std::make_pair, which uses its parameters to deduce the pair types: template <class A, class B> std::pair<A, B> make_pair(A a, B b) { return std::pair<A, B>(a, b); } // This allows you to call make_pair(1, 2), // instead of having to type pair<int, int>(1, 2) // as you can't get type deduction from the constructor. I find myself using this quite often, so I was just wondering if many other people use it, and if there is a name for this pattern?

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  • Java: Best practices for turning foreign horror-code into clean API...?

    - by java.is.for.desktop
    Hello, everyone! I have a project (related to graph algorithms). It is written by someone else. The code is horrible: public fields, no getters/setters huge methods, all public some classes have over 20 fields some classes have over 5 constructors (which are also huge) some of those constructors just left many fields null (so I can't make some fields final, because then every second constructor signals errors) methods and classes rely on each other in both directions I have to rewrite this into a clean and understandable API. Problem is: I myself don't understand anything in this code. Please give me hints on analyzing and understanding such code. I was thinking, perhaps, there are tools which perform static code analysis and give me call graphs and things like this.

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  • Dynamic Database connection

    - by gsieranski
    I have multiple client databases that I need to hit on the fly and I am having trouble getting the code I have to work. At first I was just storing a connection string in a clinet object in the db, pulling it out based on logged-in user, and passing it to linq data context constructor. This works fine in my development enviorment but is failing on the Winhost server I am using. It is running SQL 2008. I am getting a "The current configuration system does not support user scoped settings." error. Any help or guidance on this issue is greatly appreciated. Greg

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  • How to select a dynamic datepicker instance in order to extend it with jQuery

    - by JaredC
    I'm trying to control positioning of a jQuery datepicker element. I like the solution offered at http://stackoverflow.com/questions/1818670/how-to-control-positioning-of-jqueryui-datepicker for overriding the _checkOffset fn: $.extend(window.DP_jQuery.datepicker,{_checkOffset:function(inst,offset,isFixed){return offset}}); However, this results in a 'window.DP_jQuery is undefined' error. Upon inspection, I can see that the DP_jQuery object in the DOM gets named with a random string, like so: DP_jQuery_123456. If I use this full name in the above code, it works wonderfully. My question is whether there's a way to exend the _checkOffset fn for a datepicker instance without knowing before-hand what the instance name is? For example, can I use some sort of wildcard to select all datepicker instances that begin with 'DP_jQuery_'? Thanks

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  • How to change order in ordered+persisted collection?

    - by Jaroslav Záruba
    I just need to change order of items in a (previously persisted) ordered collection... I tried simply passing the re-arranged collection to a setter: after committing a transaction the collection is gone. Then I tried to clear() the existing collection and addAll() afterwards: clear() makes persistent manager to mark all the elements as deleted. (But obviously I would like to be able to work with the collection items in the very transaction.) (The collection is not in a default fetch group, so I tried the above also with the named fetch group added into the fetch plan. No luck.) This must be the most stupid question, but I ran out of ideas and I'm stuck here two days already. I swear I googled. :(

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  • Adding WCF service reference adds DataContract types too

    - by Avi Shilon
    Hi everybody, I've used Visual Studio's Add Service Reference feature to add a service (actually it is a workflow service, created in WF4 RC1, but I don't think this makes any difference), and it also added the DataContracts that the service uses. At first this seemed fine, because All I've had in the DataContracts was simply properties, with no implementations. But now I've added code in the constructor of one data contracts that initializes creates an instance of one of the properties that exposes a list of other DCs, and when I've updated the service reference via VS (2010 RC1), the implementation was not updated. What should I do? Should I use my DCs instead of the ones created by VS or should I use the ones VS created? I've noticed that the properties in the VS-generated DCs contain some additional logic for checking equality in the setters and they also implement some interfaces too (like IExtensibleDataObject and INotifyPropertyChanged) which might get handy I guess in the future (I'm not knowledgeable at WCF). Thank you for your time folks, Avi

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  • Slickgrid, confirm before edit

    - by Evan
    I am making a slick grid and need the ability to add rows with a code column. For this to be possible the code column needs to be editable for the entire table. I am trying to work out a way that I can confirm the edit with a standard javascript confirm popup box. I tried putting one into the onedit event within the slickgrid constructor and that executed after the edit. I am led to believe that the edit function is independent from calling the edit stored procedure of the database. Is there a better way to go about this? RF_tagsTable = new IndustrialSlickGrid( LadlesContainerSG , { URL: Global.DALServiceURL + "CallProcedure" , DatabaseParameters: { Procedure: "dbo.TableRF_tags" , ConnectionStringName: Global.ConnectionStringNames.LadleTracker } , Title: "RF tags" , Attributes: { AllowDelete: true , defaultColumnWidth: 120 , editable: true , enableAddRow: true , enableCellNavigation: true , enableColumnReorder: false , rowHeight: 25 , autoHeight: true , autoEdit: false , forceFitColumns: true } , Events: { onRowEdited : rowEdited /*function(){ //this is my failed attempt var r=confirm("Edit an existing tag?") if (r){ alert(r); } else { alert(r); } }*/ , onRowAdded : rowAdded } });

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  • How can I pipe a large amount of data as a runtime argument?

    - by Zombies
    Running an executable JAR on a linux platform here. The program it self works on a somewhat large amount of data, basically a list of URLs... could be up to 2k. Currently I get this from a simple DB call. But I was thinking that instead of creating a new mode and writing SQL to get a new result set and having to redploy everytime, I could just make the program more robust by passing in the result set (the list of URLs) that need to be worked on... so, within a linux environment, is there a pain-free/simple way to get the result set and pass it in dynamically? I know file i/o is one, but it doesn't seem to be effecient because each file has to be named, as well more logic to handle grabbing the correct file, creating a file with a unique name, etc.

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  • How can I compare my PHPASS-hashed stored password to my incoming POST data?

    - by Ygam
    Here's a better example, just a simple checking..stored value in database has password: fafa (hashed with phpass in registration) and username: fafa; i am using the phpass password hashing framework public function demoHash($data) //$data is the post data named password { $hash =new PasswordHash(8, false); $query = ORM::factory('user'); $result = $query ->select('username, password') ->where('username', 'fafa') ->find(); $hashed = $hash->HashPassword($data); $check = $hash->CheckPassword($hashed, $result->password); echo $result->username . "<br/>"; echo $result->password . "<br/>"; return $check; } check is returning false

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  • ASP .net MVC Jqgrid data binding

    - by SARAVAN
    Hi, I am using a jqgrid with a column named 'Comments'. My controller code returns data as follows: var jsonData = new { rows= .... .... select new { col1.... col2.... Comments = _Model.GetComments(id), }) ....... ..... return Json(jsonData, JsonRequestBehavior.AllowGet); } _Model.GetComments(id) will return a ClientComments Object which has a few properties say CommentID, FirstName, MiddleName etc., which will be bound to each row in the grid Now in my jqgrid I need to build a tool tip based on Comments column properties and for that I need to use the properties of my Comments in JQGrid for each row. May I know How I can manipulate Comment's properties for each row? Any help would be appreciated. I tried in my javascript that for each row rowObject.Comments.FirstName and it did not work.

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  • Are all public read/write members serialized with XmlSerializer?

    - by David
    I have a handful of public read/write members that are not being serialized and I can't figure out why. Reviewing some code, and my root class is marked serializable: [Serializable] public class MyClass I have a default constructor that initializes 10-15 string members. There are about 50 public read/write string members in MyClass with get and set--no explicit serialization attributes are set on any of these. Serialization looks like this: XmlSerializer x = new XmlSerializer(typeof(MyClass)); TextWriter twWriter = new StreamWriter(sFileName); x.Serialize(twWriter, this); twWriter.Close(); only a handful (20-30) of these members are actually seralized to my xml file. what am i missing or misunderstanding about the XmlSerializer class?

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