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  • Unable to find reference to std library math function inside library

    - by Alex Marshall
    Hello, I've got several programs that use shared libraries. Those shared libraries in turn use various standard C libraries. ie Program A and Program B both use Shared Library S. Shared Library S uses std C math. I want to be able to statically link Shared Library S against the standard library, and then statically link Programs A and B against S so that I don't have to be dragging around the library files, because these programs are going to be running on an embedded system running BusyBox 0.61. However, when I try to statically link the programs against Shared Library S, I get an error message from GCC stating : ../lib/libgainscalecalc.a(gainscalecalc.): In function 'float2gs': [path to my C file].c:73: undefined reference to 'log' Can somebody please help me out ? The make commands I'm using are below : CFLAGS += -Wall -g -W INCFLAGS = -I$(CROSS_INCLUDE)/usr/include LIBFLAGS += -L$(CROSS_LIB)/usr/lib -lm gainscalecalc_static.o: gainscalecalc.c $(CC) $(CFLAGS) -c $< -I. $(INCFLAGS) -o $@ gainscalecalc_dynamic.o: gainscalecalc.c $(CC) $(CFLAGS) -fPIC -c $< -o $@ all: staticlib dynamiclib static_driver dynamic_driver clean: $(RM) *.o *.a *.so *~ driver core $(OBJDIR) static_driver: driver.c staticlib $(CC) $(CFLAGS) -static driver.c $(INCFLAGS) $(LIBFLAGS) -I. -L. -lgainscalecalc -o $@ dynamic_driver: driver.c dynamiclib $(CC) $(CFLAGS) driver.c -o $@ -L. -lgainscalecalc staticlib: gainscalecalc_static.o $(AR) $(ARFLAGS) libgainscalecalc.a gainscalecalc_static.o $(RANLIB) libgainscalecalc.a chmod 777 libgainscalecalc.a dynamiclib: gainscalecalc_dynamic.o $(CC) -shared -o libgainscalecalc.so gainscalecalc_dynamic.o chmod 777 libgainscalecalc.so Edit: Linking against the shared libraries compiles fine, I just haven't tested them out yet

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  • Error while opening port in Java

    - by Deepak
    I am getting the following error while trying to open the cash drawer. Error loading win32com: java.lang.UnsatisfiedLinkError: C:\Program Files\Java\jdk1.6.0_15\jre\bin\win32com.dll: Can't load IA 32-bit .dll on a AMD 64-bit platform The code i am using is as follows `import javax.comm.; import java.util.; /** Check each port to see if it is open. **/ public class openPort { public static void main (String [] args) { Enumeration port_list = CommPortIdentifier.getPortIdentifiers (); while (port_list.hasMoreElements ()) { // Get the list of ports CommPortIdentifier port_id = (CommPortIdentifier) port_list.nextElement (); // Find each ports type and name if (port_id.getPortType () == CommPortIdentifier.PORT_SERIAL) { System.out.println ("Serial port: " + port_id.getName ()); } else if (port_id.getPortType () == CommPortIdentifier.PORT_PARALLEL) { System.out.println ("Parallel port: " + port_id.getName ()); } else System.out.println ("Other port: " + port_id.getName ()); // Attempt to open it try { CommPort port = port_id.open ("PortListOpen",20); System.out.println (" Opened successfully"); port.close (); } catch (PortInUseException pe) { System.out.println (" Open failed"); String owner_name = port_id.getCurrentOwner (); if (owner_name == null) System.out.println (" Port Owned by unidentified app"); else // The owner name not returned correctly unless it is // a Java program. System.out.println (" " + owner_name); } } } //main } // PortListOpen`

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  • How to get levels for Fry Graph readability formula?

    - by Vic
    Hi, I'm working in an application (C#) that applies some readability formulas to a text, like Gunning-Fog, Precise SMOG, Flesh-Kincaid. Now, I need to implement the Fry-based Grade formula in my program, I understand the formula's logic, pretty much you take 3 100-words samples and calculate the average on sentences per 100-words and syllables per 100-words, and then, you use a graph to plot the values. Here is a more detailed explanation on how this formula works. I already have the averages, but I have no idea on how can I tell my program to "go check the graph and plot the values and give me a level." I don't have to show the graph to the user, I only have to show him the level. I was thinking that maybe I can have all the values in memory, divided into levels, for example: Level 1: values whose sentence average are between 10.0 and 25+, and whose syllables average are between 108 and 132. Level 2: values whose sentence average are between 7.7 and 10.0, and .... so on But the problem is that so far, the only place in which I have found the values that define a level, are in the graph itself, and they aren't too much accurate, so if I apply the approach commented above, trying to take the values from the graph, my level estimations would be too much imprecise, thus, the Fry-based Grade will not be accurate. So, maybe any of you knows about some place where I can find exact values for the different levels of the Fry-based Grade, or maybe any of you can help me think in a way to workaround this. Thanks

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  • Calling a method on an unitialized object (null pointer)

    - by Florin
    What is the normal behavior in Objective-C if you call a method on an object (pointer) that is nil (maybe because someone forgot to initialize it)? Shouldn't it generate some kind of an error (segmentation fault, null pointer exception...)? If this is normal behavior, is there a way of changing this behavior (by configuring the compiler) so that the program raises some kind of error / exception at runtime? To make it more clear what I am talking about, here's an example. Having this class: @interface Person : NSObject { NSString *name; } @property (nonatomic, retain) NSString *name; - (void)sayHi; @end with this implementation: @implementation Person @synthesize name; - (void)dealloc { [name release]; [super dealloc]; } - (void)sayHi { NSLog(@"Hello"); NSLog(@"My name is %@.", name); } @end Somewhere in the program I do this: Person *person = nil; //person = [[Person alloc] init]; // let's say I comment this line person.name = @"Mike"; // shouldn't I get an error here? [person sayHi]; // and here [person release]; // and here

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  • Binder and variadic template ends up in a segmentation fault

    - by phlipsy
    I wrote the following program #include <iostream> template<typename C, typename Res, typename... Args> class bind_class_t { private: Res (C::*f)(Args...); C *c; public: bind_class_t(Res (C::*f)(Args...), C* c) : f(f), c(c) { } Res operator() (Args... args) { return (c->*f)(args...); } }; template<typename C, typename Res, typename... Args> bind_class_t<C, Res, Args...> bind_class(Res (C::*f)(Args...), C* c) { return bind_class<C, Res, Args...>(f, c); } class test { public: int add(int x, int y) { return x + y; } }; int main() { test t; // bind_class_t<test, int, int, int> b(&test::add, &t); bind_class_t<test, int, int, int> b = bind_class(&test::add, &t); std::cout << b(1, 2) << std::endl; return 0; } compiled it with gcc 4.3.3 and got a segmentation fault. After spending some time with gdb and this program it seems to me that the addresses of the function and the class are mixed up and a call of the data address of the class isn't allowed. Moreover if I use the commented line instead everything works fine. Can anyone else reproduce this behavior and/or explain me what's going wrong here?

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  • How to insert a child node in a TreeView Control in WPF?

    - by xarzu
    I have a TreeView control that I have created in XAML in a WPF program After adding a couple nodes at the root level, I have written code that loops through the tree structure like so: ItemCollection items = treeView1.Items; foreach (TreeViewItem n in items) { ... } Once I find the place in this loop where I want to include a child node, how do I go about inserting a child?

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  • how do i work bool!

    - by user350217
    HI! im a beginner and im really getting frustrated with this whole concept. i dont understand how to exactly use the bool function. i know what it is but i cantfigure out how to make it work in my program. Im trying to say that if my variable "selection" is any letter beween 'A' and 'I' then it is valid and can continue on to the next function which is called calcExchangeAmt(amtExchanged, selection). if it is false i want it to ask the user if they want to repeat the program and if they agree to repeat i want it to clear the screen and restart to the main function. please help edit my work! this is my bool function: bool isSelectionValid(char selection, char yesNo, double amtExchanged) { bool validData; validData = true; if((selection >= 'a' && selection <= 'i') || (selection >= 'A' && selection <= 'I')) { validData = calcExchangeAmt (amtExchanged, selection); } else(validData == false); { cout<<"Do you wish to continue? (Y for Yes / N for No)"; cin>>yesNo; } do { main(); } while ((yesNo =='y')||(yesNo == 'Y')); { system("cls"); } return 0; } this is the warning that im gettng: warning C4800: 'double' : forcing value to bool 'true' or 'false' (performance warning)

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  • Jquery and frames

    - by Shard
    I am currently working on a web application that has been created using a magnitude of frames that stretch down up to 5 times, The issue is that i need to preform some jquery magic throughout the website. What would be the best way to go about this (other than rewriting it which i have considered)? EDIT: The Frame Structure is something along the lines of this: Index.html menu.html banner.html list.html footer.html /lib/index.html header.html body.html footer.html The magic i am referencing is a few hot key shortcuts, find and replace that kind of stuff

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  • Need Help with wxPython & pyGame

    - by Xavier
    Hi Guys, I'm actually in need of your help and advice here on my assignment that I am working on. First of all, I was task to do a program that runs langton's ant simulation. For that, I've managed to get the source code (from snippets.dzone.com/posts/show/5143) and edited it accordingly to my requirements. This was done and ran in pygame module extension. In addition, my task requires a GUI to interface for users to run and navigate through the screens effectively with the langton's ant program running. I used wxPython with the help of an IDE called BOA constructor to create the frames, buttons, textboxes, etc. Basically, all the stuff needed in the interfaces. However, I've ran into some problems listed below: Found problem integrating pyGame with wxPython. On this note, I've research the internet for answers and tutorials where I found out from website: wiki.wxpython.org/IntegratingPyGame & aspn.activestate.com/ASPN/Mail/Message/wxpython-users/3178042. I understand from the sites that integrating pyGame with wxPython will be a difficult task where it has caused common problems like the inability to placing other controls into the frames as the pyGame application will cover the entire panel. I really hope that you can clarify my doubts on this and advise me on the path that I should take from here. Therefore, I ask the following questions: Is it feasible to integrate pyGame with wxPython? If it is not feasible to integrate pyGame with wxPython, what other alternatives do I have to create a GUI interface integrating pyGame into it. If so how do I go about? If it is possible to go about integrating pyGame with wxPython, how do I go about doing so? Really need you guys opinion on this.

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  • mysql select top users problem

    - by moustafa
    i have users table and i have posts table i want select from users the top users that have the big amount of posts from posts table and order them by numbers of posts i can make it by array_count_values() by i cant order it now i think if i make it by one mysql query by left and join will be more better table structure posts id | auther_id

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  • Iterate through main function in C?

    - by Mohit Deshpande
    Here is my main function: int main(int argc, char **argv) { LoadFile(); Node *temp; char *key; switch (GetUserInput()) { case 1: temp = malloc(sizeof(Node)); printf("\nEnter the key of the new node: "); scanf("%s", temp->key); printf("\nEnter the value of the new node: "); scanf("%s", temp->value); AddNode(temp); free(temp); break; case 2: key = malloc(sizeof(char *)); printf("Enter the key of the node you want to delete: "); scanf("%s", key); DeleteNode(key); free(key); break; case 3: PrintAll(); break; case 4: SaveFile(); break; case 5: return 0; break; default: printf("\nWrong choice!\n"); break; } return 0; } The only problem with it is that after any case statement breaks, the program just exits out. I understand why, but I don't know how to fix it. I want the program to repeat itself each time even after the case statements. Would I just say: main(argc, argv); before every break statement?

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  • iPhone Address Book - Actual Addresses

    - by Programasaurus
    I'm trying to retrieve all the addresses from the address book and display them in a tableview, but I am having trouble understanding the structure of the dictionary for which street addresses are returned. Does anyone know of a tutorial or relevant code snippet for extracting the street address(es) of contacts in the AddressBook?

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  • How to split xml to header and items using smooks?

    - by palto
    I have a xml file roughly like this: <batch> <header> <headerStuff /> </header> <contents> <timestamp /> <invoices> <invoice> <invoiceStuff /> </invoice> <!-- Insert 1000 invoice elements here --> </invoices> </contents> </batch> I would like to split that file to 1000 files with the same headerStuff and only one invoice. Smooks documentation is very proud of the possibilities of transformations, but unfortunately I don't want to do those. The only way I've figured how to do this is to repeat the whole structure in freemarker. But that feels like repeating the structure unnecessarily. The header has like 30 different tags so there would be lots of work involved also. What I currently have is this: <?xml version="1.0" encoding="UTF-8"?> <smooks-resource-list xmlns="http://www.milyn.org/xsd/smooks-1.1.xsd" xmlns:calc="http://www.milyn.org/xsd/smooks/calc-1.1.xsd" xmlns:frag="http://www.milyn.org/xsd/smooks/fragment-routing-1.2.xsd" xmlns:file="http://www.milyn.org/xsd/smooks/file-routing-1.1.xsd"> <params> <param name="stream.filter.type">SAX</param> </params> <frag:serialize fragment="INVOICE" bindTo="invoiceBean" /> <calc:counter countOnElement="INVOICE" beanId="split_calc" start="1" /> <file:outputStream openOnElement="INVOICE" resourceName="invoiceSplitStream"> <file:fileNamePattern>invoice-${split_calc}.xml</file:fileNamePattern> <file:destinationDirectoryPattern>target/invoices</file:destinationDirectoryPattern> <file:highWaterMark mark="10"/> </file:outputStream> <resource-config selector="INVOICE"> <resource>org.milyn.routing.io.OutputStreamRouter</resource> <param name="beanId">invoiceBean</param> <param name="resourceName">invoiceSplitStream</param> <param name="visitAfter">true</param> </resource-config> </smooks-resource-list> That creates files for each invoice tag, but I don't know how to continue from there to get the header also in the file. EDIT: The solution has to use Smooks. We use it in an application as a generic splitter and just create different smooks configuration files for different types of input files.

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  • Error invoking stored procedure with input parameter from ADO.Net

    - by George2
    Hello everyone, I am using VSTS 2008 + C# + .Net 3.5 + ADO.Net. Here is my code and related error message. The error message says, @Param1 is not supplied, but actually it is supplied in my code. Any ideas what is wrong? System.Data.SqlClient.SqlException: Procedure or function 'Pr_Foo' expects parameter '@Param1', which was not supplied. class Program { private static SqlCommand _command; private static SqlConnection connection; private static readonly string _storedProcedureName = "Pr_Foo"; private static readonly string connectionString = "server=.;integrated Security=sspi;initial catalog=FooDB"; public static void Prepare() { connection = new SqlConnection(connectionString); connection.Open(); _command = connection.CreateCommand(); _command.CommandText = _storedProcedureName; _command.CommandType = CommandType.StoredProcedure; } public static void Dispose() { connection.Close(); } public static void Run() { try { SqlParameter Param1 = _command.Parameters.Add("@Param1", SqlDbType.Int, 300101); Param1.Direction = ParameterDirection.Input; SqlParameter Param2 = _command.Parameters.Add("@Param2", SqlDbType.Int, 100); portal_SiteInfoID.Direction = ParameterDirection.Input; SqlParameter Param3 = _command.Parameters.Add("@Param3", SqlDbType.Int, 200); portal_RoleInfoID.Direction = ParameterDirection.Input; _command.ExecuteScalar(); } catch (Exception e) { Console.WriteLine(e); } } static void Main(string[] args) { try { Prepare(); Thread t1 = new Thread(Program.Run); t1.Start(); t1.Join(); Dispose(); } catch (Exception ex) { Console.WriteLine(ex.Message + "\t" + ex.StackTrace); } } } Thanks in advance, George

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  • [mysql] diff between tables

    - by www.yegorov-p.ru
    I have two tables, with the same structure, for example: table "first' with columns 'a','b','c' and table 'second' with the same columns. How to find difference betweet those two tables? Of course, I can make some script on python, that will make set(a)-set(b), but I think there is some way to do it in mysql.

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  • Variable Assignment and loops (Java)

    - by Raven Dreamer
    Greetings Stack Overflowers, A while back, I was working on a program that hashed values into a hashtable (I don't remember the specifics, and the specifics themselves are irrelevant to the question at hand). Anyway, I had the following code as part of a "recordInput" method. tempElement = new hashElement(someInt); while(in.hasNext() == true) { int firstVal = in.nextInt(); if (firstVal == -911) { break; } tempElement.setKeyValue(firstVal, 0); for(int i = 1; i<numKeyValues;i++) { tempElement.setKeyValue(in.nextInt(), i); } elementArray[placeValue] = tempElement; placeValue++; } // close while loop } // close method This part of the code was giving me a very nasty bug -- no matter how I finagled it, no matter what input I gave the program, it would always produce an array full of only a single value -- the last one. The problem, as I later determined it, was that because I had not created the tempElement variable within the loop, and because values were not being assigned to elementArray[] until after the loop had ended -- every term was defined rather as "tempElement" -- when the loop terminated, every slot in the array was filled with the last value tempElement had taken. I was able to fix this bug by moving the declaration of tempElement within the while loop. My question to you, Stackoverflow, is whether there is another (read: better) way to avoid this bug while keeping the variable declaration of tempElement outside the while loop. (suggestions for better title and tags also appreciated)

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  • A question on delegates and method parameters

    - by Srinivas Reddy Thatiparthy
    public class Program { delegate void Srini(string param); static void Main(string[] args) { Srini sr = new Srini(PrintHello1); sr += new Srini(PrintHello2); //case 2: sr += new Srini(delegate(string o) { Console.WriteLine(o); }); sr += new Srini(delegate(object o) { Console.WriteLine(o.ToString()); }); //case 4: sr += new Srini(delegate { Console.WriteLine(“This line is accepted,though the method signature is not Comp”); });//case 5 sr("Hello World"); Console.Read(); } static void PrintHello1(string param) { Console.WriteLine(param); } static void PrintHello2(object param) { Console.WriteLine(param); } } Compiler doesn't complain about the case 2(see the comment),well,the reason is straight forward since string inherits from object. ,along the same lines ,Why is it complaining for anonymous method types(see the comment //case 4:) that “Cannot convert anonymous method to delegate type 'DelegateTest.Program.Srini' because the parameter types do not match the delegate parameter types” where as in case of normal method it doesn't ?or am i comparing apples with oranges? Another case is why is it accepting anonymous method without parameters?

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  • Junit HTML report

    - by nomemory
    Is there a way to (easily) generate a HTML report that contains the tests results ? I am currently using JUnit in addition to Selenium for testing web apps UI. PS: Given the project structure I am not supposed to use ANT :(

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  • Cygwin Cruisecontrol cannot execute commands

    I'm having what I hope to be a simple problem. However, it's had me stumped all day. I'm working with cruisecontrol in windows, being set up through Cygwin. I have some CC experience in the linux platform and much of what I'm doing is very similar. However, most any command I try to execute in the config.xml file's Schedule section is giving an error. Here's the exception: ExecBuilder - Could not execute command: /cygdrive/d/Program\ Files/Subversion/bin/svn net.sourceforge.cruisecontrol.CruiseControlException: Encountered an IO exception while attempting to execute 'net.sourceforge.cruisecontrol.builders.ExecScript@b80f1c'. CruiseControl cannot continue. at net.sourceforge.cruisecontrol.builders.ScriptRunner.runScript(ScriptRunner.java:133) Here are some examples of commands I've tried to run which give this type of error. <exec command="${CCLoc}/projects/${project.name}/IOSdllScript"/> -Runs a script that I tested outside of the cruisecontrol.bat and it runs. Includes #!/bin/sh as the first line <exec command="${CCLoc}/projects/${project.name}/EmptyFile"/> -Essentially an empty text file, proving that the problem had nothing to do with my script. <exec command="/cygdrive/d/Program\ Files/Subversion/bin/svn" args="cleanup" workingdir="${svndir}"/> -Trys svn cleanup on a directory. I double checked the pathing and spelling. One command that I tested worked and didn't give this error. That command was touch. <exec command="touch" args="ABC.txt"/> I'm not sure why only touch seems to work and nothing else does. Thank you for your help.

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  • Is it possible to dynamically discover tables in an Entity Framework model ?

    - by Scott Davies
    Hi, I have co-workers working on an Entity Framework model that changes structure (entities), over time as software development progresses. I've written some utilities that interact with the tables within the model, but I'd like to have the code dynamically discover the tables. Is there a way I can do this ? Perhaps with ADO.NET to get the table names and then store them in a collection ? Thanks, Scott

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  • Rails / ActiveRecord Modeling Help

    - by JM
    I’m trying to model a relationship in ActiveRecord and I think it’s a little beyond my skill level. Here’s the background. This is a horse racing project and I’m trying to model a horses Connections over time. Connections are defined as the Horse’s Current: Owner, Trainer and Jockey. Over time, a horse’s connections can change for a lot of different reasons: The owner sells the horse in a private sale The horse is claimed (purchase in a public sale) The Trainer switches jockeys The owner switches trainers In my first attempt at modeling this, I created the following tables: Horses, Owners, Trainers, Jockeys and Connections. Essentially, the Connections table was the has-many-through join table and was structured as follows: Connections Table 1 Id Horse_id Owner_id Trainer_id Jockey_id Status_Code Status_Date Change_Code The Horse, Owner, Trainer and Jockey foreign keys are self explanatory. The status code is 1 or 0 (1 active, 0 inactive) and the status date is the date the status changed. Change_code is and integer or string value that represent the reason for the change (private sale, claim, jockey change, etc) The key benefit of this approach is that the Connection is represented as one record in the connections table. The downside is that I have to have a table for Owner (1), Trainer (2) and Jockey (3) when one table could due. In my second attempt at modeling this I created the following tables: Horses, Connections, Entities The Entities tables has the following structure Entities Table id First_name Last_name Role where Role represents if the entity is a Owner, Trainer or Jockey. Under this approach, my Connections table has the following structure Connections Table 2 id Horse_id Entity_id Role Status_Code Status_Date Change_Code 1 1 1 1 1 1/1/2010 2 1 4 2 1 1/1/2010 3 1 10 3 1 1/1/2010 This approach has the benefit of eliminating two tables, but on the other hand the Connection is now comprised of three different records as opposed to one in the first approach. What believe I’m looking for is an approach that allows me to capture the Connection in one record, but also uses an Entities table with roles instead of the Owner, Trainer and Jockey tables. I’m new to ActiveRecord and rails so any and all input would be greatly appreciated. Perhaps there are other ways that would even be better. Thanks!

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  • How do you read a file line by line in your language of choice?

    - by Jon Ericson
    I got inspired to try out Haskell again based on a recent answer. My big block is that reading a file line by line (a task made simple in languages such as Perl) seems complicated in a functional language. How do you read a file line by line in your favorite language? So that we are comparing apples to other types of apples, please write a program that numbers the lines of the input file. So if your input is: Line the first. Next line. End of communication. The output would look like: 1 Line the first. 2 Next line. 3 End of communication. I will post my Haskell program as an example. Ken commented that this question does not specify how errors should be handled. I'm not overly concerned about it because: Most answers did the obvious thing and read from stdin and wrote to stdout. The nice thing is that it puts the onus on the user to redirect those streams the way they want. So if stdin is redirected from a non-existent file, the shell will take care of reporting the error, for instance. The question is more aimed at how a language does IO than how it handles exceptions. But if necessary error handling is missing in an answer, feel free to either edit the code to fix it or make a note in the comments.

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  • How do i pass arraycollection to Advancedatagrid using HierarchicalData ?

    - by R.Vijayakumar
    Problem with passing arraycollection to Advance datagrid. My Arraycollection structure like `   private var groupList:ArrayCollection = new ArrayCollection([ {Country:'India', children:[ {Country:'Series1', children:[                                {Matches:'India Test series 1',isEnable:false,id:1,isSelected:true},                                {Matches:'India Test series 2',isEnable:false,id:2,isSelected:true},                                {Matches:'India Test series 3',isEnable:false,id:3,isSelected:true}]},              {Country:'Series2', children:[                                {Matches:'Australia Test series 1',isEnable:false,id:25,isSelected:true},                                {Matches:'Australia Test series 2',isEnable:false,id:26,isSelected:true},                                {Matches:'Australia Test series 3',isEnable:false,id:27,isSelected:true}]} ]}, {Country:'Austrila', children:[ {Country:'Series1', children:[                                {Matches:'Australia Test series 1',isEnable:false,id:46,isSelected:true},                                {Matches:'Australia Test series 2',isEnable:false,id:47,isSelected:true},                                {Matches:'Australia Test series 3',isEnable:false,id:48,isSelected:true}]}, {Country:'Series2', children:[                                {Matches:'Australia Test series 1',isEnable:false,id:49,isSelected:true},                                {Matches:'Australia Test series 2',isEnable:false,id:50,isSelected:true},                                {Matches:'Australia Test series 3',isEnable:false,id:51,isSelected:true}]}, {Country:'Series3', children:[                                {Matches:'Australia Test series 1',isEnable:false,id:52,isSelected:true},                                {Matches:'Australia Test series 2',isEnable:false,id:53,isSelected:true},                                {Matches:'Australia Test series 3',isEnable:false,id:54,isSelected:true}]} ]} passing AD in dataProvider="{new HierarchicalData(groupList)}" It's working fine. it's show two menu of tree and childrens based on country .But i tried dynamic xml convert to Arraycollection by below code private function convertXmlToArrayCollection( file:String ):ArrayCollection { var xml:XMLDocument = new XMLDocument( file ); //var decoder:SimpleXMLDecoder = new SimpleXMLDecoder(); var decoder1:SimpleXMLDecoder = new SimpleXMLDecoder(true); var data1:Object = decoder1.decodeXML( xml ); var array1:Array = ArrayUtil.toArray(data1); return new ArrayCollection( array1 ); } my xml structure is <Country Country="India "> <Country Country="Series "> <Matches Matches="BIndependiente-Colon" id="701536" isEnable="false" isSelected="true" startDate="2009-10-29 01:30:00" EndDate="2009-10-29 01:30:00"/> <Matches Matches="Boca Juniors-Chacarita Juniors" id="701633" isEnable="false" isSelected="true" startDate="2009-10-29 19:00:00" EndDate=""/> </Country> </Country> <Country Country="Australia"> <Country Country="series"> <Matches Matches="BIndependiente-Colon" id="701536" isEnable="false" isSelected="true" startDate="2009-10-29 01:30:00" EndDate="2009-10-29 01:30:00"/> <Matches Matches="Boca Juniors-Chacarita Juniors" id="701633" isEnable="false" isSelected="true" startDate="2009-10-29 19:00:00" EndDate=""/> </Country> </Country> So if i tried to convert this format of xml code to arryacollection , it converted the array collection but when will i pass to Advance data grid it not show any result . What did i wrong ? groupList1= convertXmlToArrayCollection(string1); Alert.show(groupList1[0].Country[0].Matches[0].id.toString());// output is =701536 Where did i mistake it ? Plz kindly any one refer me , What will i changed ?

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  • other way to add item to List<>

    - by netmajor
    In my other question You can see code of my arr structure and PriorityQueue collection. I normally add items to this collection like that: arr.PriorityQueue.Add(new element((value(item, endPoint) + value(startPoint, item)),item)); I am curious that is other way to do this (add element(which is struct) object to List) ? In lambda way for example ? I just eager for knowledge :)

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