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  • inline assembly error

    - by Manish
    I am using inline assembly for iphone, I working for device debug mode. The instruction is as follows: __asm__("smlatb %0, %1, %2 ,%3 \n\t": "=r"(Temp): "r"(treg5) : "r"(fac5) : "r"(Temp) ); And I am getting an errors: error : expected ')' before tokedn '(' error: unknown register name 'r' in 'asm' I am using X-code 3.0 and gcc 4.0. Any ideas?

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  • Is O_NONBLOCK being set a property of the file descriptor or underlying file?

    - by Daniel Trebbien
    From what I have been reading on The Open Group website on fcntl, open, read, and write, I get the impression that whether O_NONBLOCK is set on a file descriptor, and hence whether non-blocking I/O is used with the descriptor, should be a property of that file descriptor rather than the underlying file. Being a property of the file descriptor means, for example, that if I duplicate a file descriptor or open another descriptor to the same file, then I can use blocking I/O with one and non-blocking I/O with the other. Experimenting with a FIFO, however, it appears that it is not possible to have a blocking I/O descriptor and non-blocking I/O descriptor to the FIFO simultaneously (so whether O_NONBLOCK is set is a property of the underlying file [the FIFO]): #include <errno.h> #include <fcntl.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> int main(int argc, char **argv) { int fds[2]; if (pipe(fds) == -1) { fprintf(stderr, "`pipe` failed.\n"); return EXIT_FAILURE; } int fd0_dup = dup(fds[0]); if (fd0_dup <= STDERR_FILENO) { fprintf(stderr, "Failed to duplicate the read end\n"); return EXIT_FAILURE; } if (fds[0] == fd0_dup) { fprintf(stderr, "`fds[0]` should not equal `fd0_dup`.\n"); return EXIT_FAILURE; } if ((fcntl(fds[0], F_GETFL) & O_NONBLOCK)) { fprintf(stderr, "`fds[0]` should not have `O_NONBLOCK` set.\n"); return EXIT_FAILURE; } if (fcntl(fd0_dup, F_SETFL, fcntl(fd0_dup, F_GETFL) | O_NONBLOCK) == -1) { fprintf(stderr, "Failed to set `O_NONBLOCK` on `fd0_dup`\n"); return EXIT_FAILURE; } if ((fcntl(fds[0], F_GETFL) & O_NONBLOCK)) { fprintf(stderr, "`fds[0]` should still have `O_NONBLOCK` unset.\n"); return EXIT_FAILURE; // RETURNS HERE } char buf[1]; if (read(fd0_dup, buf, 1) != -1) { fprintf(stderr, "Expected `read` on `fd0_dup` to fail immediately\n"); return EXIT_FAILURE; } else if (errno != EAGAIN) { fprintf(stderr, "Expected `errno` to be `EAGAIN`\n"); return EXIT_FAILURE; } return EXIT_SUCCESS; } This leaves me thinking: is it ever possible to have a non-blocking I/O descriptor and blocking I/O descriptor to the same file and if so, does it depend on the type of file (regular file, FIFO, block special file, character special file, socket, etc.)?

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  • strongly typed dataset Insert record with C# problem

    - by Eyla
    Greetings, I'm using strongly typed data-set in windows application and I'm creating table adapter object to call insert function. The problem that there is nothing inserted to the table after calling the function and no error produced. here is my code: public PacketsDBDataSet1TableAdapters.packetsTableAdapter ds = new PacketsDBDataSet1TableAdapters.packetsTableAdapter(); private void btnSavePacketsInFile_Click(object sender, EventArgs e) { byte[] w = null; ds.InsertPackets("s", "s", "s", "s", "s", w); } I'm using same same code with ASP.Net but it is working OK. any advice??

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  • disable event-bubbling c# wpf

    - by Ruben
    Hi, I'm having the following problem: When I got two labels into each other: <Label x:Name="First" MouseUp="Label_MouseUp"> <Label x:Name="Second" MouseUp="Label_MouseUp_1">This is a label into another label</Label> </Label> And the following code: private void Label_MouseUp(object sender, MouseButtonEventArgs e) { Console.WriteLine("Do NOT show me"); } private void Label_MouseUp_1(object sender, MouseButtonEventArgs e) { Console.WriteLine("Show me"); } When i click "Second", I want it to trigger only "Label_MouseUp_1". But in my console i get: Show me Do NOT show me Is there a way to turn off the bubbling events? (also, "First" has to be clickable, so removing the event there doesn't solve the problem) Thnx

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  • Groovy MetaClass - Add category methods to appropriate metaClasses

    - by noah
    I have several categories that I use in my Grails plugin. e.g., class Foo { static foo(ClassA a,Object someArg) { ... } static bar(ClassB b,Object... someArgs) { ... } } I'm looking for the best way to add these methods to the meta-classes so that I don't have to use the category classes and can just invoke them as instance methods. e.g., aInstance.foo(someArg) bInstance.bar(someArgs) Is there a Groovy/Grails class or method that will help me do this or am I stuck iterating through the methods and adding them all myself?

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  • newbie question: how to show a drop down menu with this function

    - by Mellon
    My model object (e.g. MyObject) has one property (e.g. color), the "color" property holds a string value which comes from a list of string (e.g. colors=['red','yellow', 'black']). now, I have one instance of myObject get from database and show on the view page in a row, I need to show the 'color' property of myObject in a drop down menu with the current value as the default selected. How to implement this in Rails 3 in my view page. (Later, when user select from the dropdown menu, the object will be updated in DB based on user's selection) Please explain with instance "myObject" and list "colors=[...]"

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  • integriting facebook login button with Facebooker (rails plugin)

    - by dexterdeng
    I was integriting login-button with Facebooker, as I wanted to use facepile and customise the facebook login button, so I have to use facebook js sdk. I used the facebooker to connect facebook. now I found a issue. window.fbAsyncInit = function() { FB.init({ appId: '<%=Facebooker.api_key%>', status: true, cookie: true, xfbml: true }); }; (function() { var e = document.createElement('script'); e.type = 'text/javascript'; e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js'; e.async = true; document.getElementById('fb-root').appendChild(e); }()); function fblogin(){ var pearms = "email,user_birthday,friends_location,offline_access,publish_stream,read_friendlists,user_birthday,user_location"; FB.getLoginStatus(function(response) { if (response.session) { // logged in and connected user, someone you know window.location = "http://domain/account/link_user_accounts"; return true; } else { // no user session available, someone you dont know FB.login(function(response) { if (response.session) { if (response.perms) { // after logged in the facebook account. $.inspect(response.perms);//return all these perms I expected. it should be fine there. window.location = "http://domain/account/link_user_accounts"; } return true; } else { return false; } },"email,user_birthday,friends_location,offline_access,publish_stream,read_friendlists"); } }) }; Let's say if the api_key is "1111111111". take a look at this line: " ` if (response.session) { if (response.perms) { $.inspect(response.perms); " now I was trying to login , call fblogin() , I'm sure that the response.perms equal to the perms I expected. (btw, at that time, I have a facebook plugin named facepile works too, it showed my friends after I called fblogin() and connected to facebook by typing my email and password ). so now it should run window.location = "http://domain/account/link_user_accounts"; yes, this line run. but the facebook_session can't build successfully. after digging the facebooker's code, I found this from the rails plugin facebooker: def create_facebook_session secure_with_facebook_params! || secure_with_cookies! || secure_with_token! end mostly, it would run secure_with_cookies! , and if the cookies with keys as "fbs_#{Facebooker.api_key}","#{Facebooker.api_key}_ss", "#{Facebooker.api_key}_session_key",.. created, then the facebook_session can be created. but these cookies can't be created after I logged in facebook until I refresh the current page by hand . I noticed if I refresh the page, the cookies with these keys added to the browser. but why they can't be added after I logged in facebook at once? I need these keys to create facebook_session. did I forgot something excepted these code I pasted? anybody help? thank you very much!

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  • passing argument 1 from incompatible pointer type

    - by Andrew
    Why does this code...: NSDictionary *testDictionary = [NSDictionary dictionaryWithObjectsAndKeys:kABOtherLabel, @"other", kABWorkLabel, @"work", nil]; throw this warning: warning: passing argument 1 of 'dictionaryWithObjectsAndKeys' from incompatible pointer type Incidentally, the code works as expected, but I don't like leaving warnings un-delt-with. I assume it doesn't like that I'm storing a constant in a dictionary. Well, where can I store it then? Should I just place (void *) before every constant?

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  • Finding the stored procedure that a Crystal Report is using

    - by Brandon
    I need to retrieve the name of the stored procedure that a crystal report is running. Is there any way to do this in C# using the CrystalDecisions.CrystalReports.Engine.ReportDocument object? I can't seem to find a property that will give me the stored procedure name. Is this even possible? I've been through almost all the properties I can think of. The DataDefinition object has collections for the Formula, Parameter, Group Name, and Running Total Fields, but not one for the Database Fields.

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  • How to make a web browser with tabbed browsing with vb 2008?

    - by felixd68
    I've tried multiple times to create a web browser with tabbed browsing. I know that I have to use "tab control". I have succeeded in creating a semi-tabbed browsing. People are able to add new tabs, but the webbrowser component only appears in one tab page. Coding: Form1_Load: Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim Browse As New WebBrowser TabControl1.TabPages.Add(1, "TabPage" & i) TabControl1.SelectTab(1 - 1) Browse.Name = "wb" Browse.Dock = DockStyle.Fill TabControl1.SelectedTab.Controls.Add(Browse) i = i + 1 End Sub Web Browser Component Private Sub WebBrowser1_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) url.Text = e.Url.ToString() 'your url text box will show the actual url of the page after the page is fully loaded url.Text = e.Url.ToString Me.Text = CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).DocumentTitle & " - Webbrowser's name" TabControl1.SelectedTab.Text = CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).DocumentTitle End Sub

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  • [Glade] button problem

    - by Christian
    Hi, i'm using glade to designa a interface for my program written in C but i have some problem with the buttons. Can someone explain me how to set in glade an action for a button? i mean, i wrote a function in my code but i don't know how to associate it to the graphic... i set i the Signal box the GtkButton activate and i chose "on_button_activate" and in "user data" i put the name of my function but when i copile it this is the terminal answare: chris@chris-laptop:~/Scrivania$ ./provaGrafica (provaGrafica:3139): Gtk-WARNING **: Could not lookup object funzione_esporta on signal activate of object button4 (provaGrafica:3139): Gtk-WARNING **: Could not find signal handler 'on_button4_activate' chris@chris-laptop:~/Scrivania$ and obviusly the button do not work thanks

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  • What is a NullReferenceException in .NET?

    - by John Saunders
    (I'm creating this separate question and answer because every question we get on NullReferenceException is really the same) I have some code and when it executes, it throws a NullReferenceException, saying, "Object reference not set to an instance of an object.". What does this mean, and what can I do about it? Note again, that this is a question meant to focus answers to the canonical "what is a NullReferenceException and why did I get one" question. I do know what a NullReferenceException is, as my answer below demonstrates.

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  • DAO, Spring and Hibernate

    - by EugeneP
    Correct me if anything is wrong. Now when we use Spring DAO for ORM templates, when we use @Transactional attribute, we do not have control over the transaction and/or session when the method is called externally, not within the method. Lazy loading saves resources - less queries to the db, less memory to keep all the collections fetched in the app memory. So, if lazy=false, then everything is fetched, all associated collections, that is not effectively, if there are 10,000 records in a linked set. Now, I have a method in a DAO class that is supposed to return me a User object. It has collections that represent linked tables of the database. I need to get a object by id and then query its collections. Hibernate "failed to lazily initialize a collection" exception occurs when I try to access the linked collection that this DAO method returns. Explain please, what is a workaround here?

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  • PulpCore music playback - loop sound and animate volume

    - by Peter Perhác
    I have been experimenting with PulpCore, trying to create my own tower defence game (not-playable yet), and I am enjoying it very much I ran into a problem that I can't quite figure out. I extended PulpCore with the JOrbis thing to allow OGG files to be played. Works fine. However, pulpCore seems to have a problem with looping the sound WHILE animating the volume level. I tried this with wav file too, to make sure it isn't jOrbis that breaks it. The code is like this: Sound bgMusic = Sound.load("music/music.ogg"); Playback musicPlayback; ... musicVolume = new Fixed(0.75); musicPlayback = bgMusic.loop(musicVolume); //TODO figure out why it's NOT looping when volume is animated // musicVolume.animate(0, musicVolume.get(), FADE_IN_TIME); This code, for as long as the last line is commented out, plays the music.ogg again and again in an endless loop (which I can stop by calling stop on the Playback object returned from loop(). However, I would like the music to fade in smoothly, so following the advice of the PulpCore API docs, I added the last line which will create the fade-in but the music will only play once and then stop. I wonder why is that? Here is a bit of the documentation: Playback pulpcore.sound.Sound.loop(Fixed level) Loops this sound clip with the specified volume level (0.0 to 1.0). The level may have a property animation attached. Parameters: level Returns: a Playback object for this unique sound playback (one Sound can have many simultaneous Playback objects) or null if the sound could not be played. So what could be the problem? I repeat, with the last line, the sound fades in but doesn't loop, without it it loops but starts with the specified 0.75 volume level. Why can't I animate the volume of the looped music playback? What am I doing wrong? Anyone has any experience with pulpCore and has come across this problem? Anyone could please download PulpCore and try to loop music which fades-in (out)? note: I need to keep a reference to the Playback object returned so I can kill music later.

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  • Changing SQL Server Database sorting

    - by plaisthos
    I have a request to change the collation of a SQL Server Database: ALTER DATABASE solarwind95 collate SQL_Latin1_General_CP1_CI_AS but I get this strange error: Meldung 5075, Ebene 16, Status 1, Zeile 1 Das 'Spalte'-Objekt 'CustomPollerAssignment.PollerID' ist von 'Datenbanksortierung' abhängig. Die Datenbanksortierung kann nicht geändert werden, wenn ein schemagebundenes Objekt von ihr abhängig ist. Entfernen Sie die Anhängigkeiten der Datenbanksortierung, und wiederholen Sie den Vorgang. Sorry for the german errror message. I do not know how to switch the language to english, but here is a translation: Translation: Message 5075, Layer 16, Status 1, Row 1 The 'column' object 'CustomPollerAssignment.PollerID' depends on 'Database sorting. The database sorting cannot be changed if a schema bound object depends on it. Remove the dependency of the database sortieren and retry. I got a ton more of the errors like that.

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  • COM/DCOM problem when hosting executable is run as a service

    - by Mitch
    I am struggling for days now with the following problem: We have an executable that hosts a COM server, say x.exe. The COM object is instantiated as follows on the calling site: hRes = CoCreateInstance(CLSID_InterceptX, NULL, CLSCTX_SERVER, IID_IInterceptX, (void**)&pInterceptX); It all works fine when x runs as an regular application. We have a tool (I don't know how it works) that encapsulates x.exe so that it runs as a service under Windows (x.exe is a running process). In this case, we never receive a COM call in x.exe (validated by logging). Here is the weird part: From logging the calling site, I can tell that the COM object has been successfully instantiated and also the call to an interface function does not produce an error (SUCEEDED(hres) is true). Any ideas?

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  • How get all calendar entries for a given using the Notes.Jar for Java

    - by vikramjb
    I am working on a simple java code to extract all calendar entries for a given date. I know it possible using Domingo but I would like to use only Notes.jar for this purpose. It is possible for me to create a session based on a given credentials and get the calendar object. I am looking to extract the current running notes session and use that session object to open the calendar view in the mail file and start playing with it. But I am not able to get it working. Anybody have any idea or links on this ?

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  • C#: BackgroundWorker cloning resources?

    - by Dav
    The problem I've been struggling with this partiular problem for two days now and just run out of ideas. A little... background: we have a WinForms app that needs to access a database, construct a list of related in-memory objects from that data, and then display on a DataGridView. Important point is that we first populate an app-wide cache (List), and then create a mirror of the cache local to the form on which the DGV lives (using List constructor param). Because fetching the data takes a good few seconds (DB sits on a LAN server) to load, we decided to use a BackgroundWorker, and only refresh the DGV once the data is loaded. However, it seems that doing the loading via a BGW results in some memory leak... or an error on my part. When loaded using a blocking method call, the app consumes about 30MB of RAM; with a BGW this jumps to 80MB! While it may not seem as much anyway, our clients are not too happy about it. Relevant code Form private void MyForm_Load(object sender, EventArgs e) { MyRepository.Instance.FinishedEvent += RefreshCache; } private void RefreshCache(object sender, EventArgs e) { dgvProducts.DataSource = new List<MyDataObj>(MyRepository.Products); } Repository private static List<MyDataObj> Products { get; set; } public event EventHandler ProductsLoaded; public void GetProductsSync() { List<MyDataObj> p; using (MyL2SDb db = new MyL2SDb(MyConfig.ConnectionString)) { p = db.PRODUCTS .Select(p => new MyDataObj {Id = p.ID, Description = p.DESCR}) .ToList(); } Products = p; // tell the form to refresh UI if (ProductsLoaded != null) ProductsLoaded(this, null); } public void GetProductsAsync() { using (BackgroundWorker myWorker = new BackgroundWorker()) { myWorker.DoWork += delegate { List<MyDataObj> p; using (MyL2SDb db = new MyL2SDb(MyConfig.ConnectionString)) { p = db.PRODUCTS .Select(p => new MyDataObj {Id = p.ID, Description = p.DESCR}) .ToList(); } Products = p; }; // tell the form to refresh UI when finished myWorker.RunWorkerCompleted += GetProductsCompleted; myWorker.RunWorkerAsync(); } } private void GetProductsCompleted(object sender, RunWorkerCompletedEventArgs e) { if (ProductsLoaded != null) ProductsLoaded(this, null); } End! GetProductsSync or GetProductsAsync are called on the main thread, not shown above. Could it be that the GarbageCollector just gets lost with two threads? Or is it the task manager that shows incorrect values? Will be greateful for any responses, suggestions, criticism.

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  • weakref list in python

    - by Dan
    I'm in need of a list of weak references that deletes items when they die. Currently the only way I have of doing this is to keep flushing the list (removing dead references manually). I'm aware there's a WeakKeyDictionary and a WeakValueDictionary, but I'm really after a WeakList, is there a way of doing this? Here's an example: import weakref class A(object): def __init__(self): pass class B(object): def __init__(self): self._references = [] def addReference(self, obj): self._references.append(weakref.ref(obj)) def flush(self): toRemove = [] for ref in self._references: if ref() is None: toRemove.append(ref) for item in toRemove: self._references.remove(item) b = B() a1 = A() b.addReference(a1) a2 = A() b.addReference(a2) del a1 b.flush() del a2 b.flush()

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  • Drupal UC "Quoting / Estimate" error

    - by Murtez
    Hi, I was playing around with Drupal UC and installed a module called "Quoting / Estimate" (http://drupal.org/project/quoting), I tried to run it and got this error: **warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'quoting_quote_clear_page' was given in /home/ergospec/public_html/d/includes/menu.inc on line 348** Has anyone run into this problem? Second question: anyone know of a good quotation module (where customer can request a price quote, not the brackets)? It doesn't have to be in Drupal. Any help is appreciated. Murtez

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  • Marshalling polymorphic objects in JAX-WS

    - by pkchukiss
    I'm creating a JAX-WS type webservice, with operations that return an object WebServiceReply. The class WebServiceReply itself contains a field of type Object. The individual operations would populate that field with a few different data-types, depending on the operation. Publishing the WSDL (I'm using Netbeans 6.7), and getting a ASP.NET application to retrieve and parse the WSDL was fine, but when I tried to call an operation, I would receive the following exception: javax.xml.ws.WebServiceException: javax.xml.bind.MarshalException - with linked exception: [javax.xml.bind.JAXBException: class [LDataObject.Patient; nor any of its super class is known to this context.] How do I mark the annotations in the DataObject.Patient class, as well as the WebServiceReply class to get it to work? I haven't been able to fine a definitive resource on marshalling based upon annotations within the target classes either, so it would be great if anybody could point me to that too. WebServiceReply.java @XmlRootElement(name="WebServiceReply") public class WebServiceReply { private Object returnedObject; private String returnedType; private String message; private String errorMessage; .......... // Getters and setters follow } DataObject.Patient.java @XmlRootElement(name="Patient") public class Patient { private int uid; private Date versionDateTime; private String name; private String identityNumber; private List<Address> addressList; private List<ContactNumber> contactNumberList; private List<Appointment> appointmentList; private List<Case> caseList; } Solution (Thanks to Gregory Mostizky for his answer) I edited the WebServiceReply class so that all the possible return objects extend from a new class ReturnValueBase, and added the annotations using @XmlSeeAlso to ReturnValueBase. JAXB worked properly after that! Nonetheless, I'm still learning about JAXB marshalling in JAX-WS, so it would be great if anyone can still post any tutorial on this. Gregory: you might want to add-on to your answer that the return objects need to sub-class from ReturnValueBase. Thanks a lot for your help! I had been going bonkers over this problem for so long!

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  • Turtle Graphics as a Haskell Monad

    - by iliis
    I'm trying to implement turtle graphis in Haskell. The goal is to be able to write a function like this: draw_something = do fordward 100 right 90 forward 100 ... and then have it produce a list of points (maybe with additional properties): > draw_something (0,0) 0 -- start at (0,0) facing east (0 degrees) [(0,0), (0,100), (-100,100), ...] I have all this working in a 'normal' way, but I fail to implement it as a Haskell Monad and use the do-notation. The basic code: data State a = State (a, a) a -- (x,y), angle deriving (Show, Eq) initstate :: State Float initstate = State (0.0,0.0) 0.0 -- constrain angles to 0 to 2*pi fmod :: Float -> Float fmod a | a >= 2*pi = fmod (a-2*pi) | a < 0 = fmod (a+2*pi) | otherwise = a forward :: Float -> State Float -> [State Float] forward d (State (x,y) angle) = [State (x + d * (sin angle), y + d * (cos angle)) angle] right :: Float -> State Float -> [State Float] right d (State pos angle) = [State pos (fmod (angle+d))] bind :: [State a] -> (State a -> [State a]) -> [State a] bind xs f = xs ++ (f (head $ reverse xs)) ret :: State a -> [State a] ret x = [x] With this I can now write > [initstate] `bind` (forward 100) `bind` (right (pi/2)) `bind` (forward 100) [State (0.0,0.0) 0.0,State (0.0,100.0) 0.0,State (0.0,100.0) 1.5707964,State (100.0,99.99999) 1.5707964] And get the expected result. However I fail to implement this as an instance of Monad. instance Monad [State] where ... results in `State' is not applied to enough type arguments Expected kind `*', but `State' has kind `* -> *' In the instance declaration for `Monad [State]' And if I wrap the list in a new object data StateList a = StateList [State a] instance Monad StateList where return x = StateList [x] I get Couldn't match type `a' with `State a' `a' is a rigid type variable bound by the type signature for return :: a -> StateList a at logo.hs:38:9 In the expression: x In the first argument of `StateList', namely `[x]' In the expression: StateList [x] I tried various other versions but I never got it to run as I'd like to. What am I doing wrong? What do I understand incorrectly?

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  • C++ Switch Statement Case Error

    - by Metal_Drummer
    I'm programming a simple text-based RPG using a switch statement for a game loop. The program works fine until I attempt to add another case statement, at which point it gives me the following three errors: "jump to case label" (error occurs at the line of the newly added case), and two "crosses initialization of 'ClassName *objectName'"(errors occur when the new objects are created in case 2). I'll paste the important code, if anyone needs more, please let me know. int main(void) { //initiate first object array and add some objects //initiate second object array and add some objects while(gamestate != 8) { switch(gamestate) { case 0: //do some stuff break; case 1: //do some stuff break; case 2: //declare new objects of the two... //...classes I have (ClassName *objectName) //do some stuff break; case 3: //this is the case I am trying to add //do nothing break; } } return 0; }

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  • ZeroC Ice "checked casts" in Scala

    - by Alexey Romanov
    ZeroC Ice for Java translates every Slice interface Simple into (among other things) a proxy interface SimplePrx and a proxy SimplePrxHelper. If I have an ObjectPrx (the base interface for all proxies), I can check whether it actually has interface Simple by using a static method on SimplePrxHelper: val obj : Ice.ObjectPrx = ...; // Get a proxy from somewhere... val simple : SimplePrx = SimplePrxHelper.checkedCast(obj); if (simple != null) // Object supports the Simple interface... else // Object is not of type Simple... I wanted to write a method castTo so that I could replace the second line with val simple = castTo[SimplePrx](obj) or val simple = castTo[SimplePrxHelper](obj) So far as I can see, Scala's type system is not expressive enough to allow me to define castTo. Is this correct?

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