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  • CodeContracts: How to fullfill Require in Ctor using this() call?

    - by mafutrct
    I'm playing around with Microsoft's CodeContracts and encountered a problem I was unable to solve. I've got a class with two constructors: public Foo (public float f) { Contracts.Require(f > 0); } public Foo (int i) : this ((float)i) {} The example is simplified. I don't know how to check the second constructor's f for being 0. Is this even possible with Contracts?

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  • PowerShell function won't return object

    - by Dan
    I have a simple function that creates a generic List: function test() { $genericType = [Type] "System.Collections.Generic.List``1" [type[]] $typedParameters = ,"System.String" $closedType = $genericType.MakeGenericType($typedParameters) [Activator]::CreateInstance($closedType) } $a = test The problem is that $a is always null no matter what I try. If I execute the same code outside of the function it works properly. Thoughts?

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  • JavaScript function to validate an integer value

    - by Psyche
    Hello, I'm building a shopping cart and I would like to use a JavaScript function to validate user input when entering the quantity value in the quantity text input. I would like to allow the entering of integer values only (no floats, no other characters). I know that I can apply this function using onKeyUp event and also I found isNaN() function, but it returns true even for floats (which is not ok). Can you guys help me out with this one? Thanks.

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  • Java - How to pass a Generic parameter as Class<T> to a constructor

    - by Joe Almore
    I have a problem here that still cannot solve, the thing is I have this abstract class: public abstract class AbstractBean<T> { private Class<T> entityClass; public AbstractBean(Class<T> entityClass) { this.entityClass = entityClass; }... Now I have another class that inherits this abstract: @Stateless @LocalBean public class BasicUserBean<T extends BasicUser> extends AbstractBean<T> { private Class<T> user; public BasicUserBean() { super(user); // Error: cannot reference user before supertype contructor has been called. } My question is how can I make this to work?, I am trying to make the class BasicUserBean inheritable, so if I have class PersonBean which inherits BasicUserBean then I could set in the Generic the entity Person which also inherits the entity BasicUser. And it will end up being: @Stateless @LocalBean public class PersonBean extends BasicUserBean<Person> { public PersonBean() { super(Person.class); } ... I just want to inherit the basic functionality from BasicUserBean to all descendants, so I do not have to repeat the same code among all descendants. Thanks!.

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  • exec sp_executesql error 'Incorrect syntax near 1' when using datetime parameter

    - by anne78
    I have a Ssrs report which sends the following text to the database : EXEC ( 'DECLARE @TeamIds as TeamIdTableType ' + @Teams + ' EXEC rpt.DWTypeOfSicknessByCategoryReport @TeamIds , ' + @DateFrom + ', ' + @DateTo + ', ' + @InputRankGroups + ', ' + @SubCategories ) When I view this in profiler it interprets this as : exec sp_executesql N'EXEC ( ''DECLARE @TeamIds as TeamIdTableType '' + @Teams + '' EXEC rpt.DWTypeOfSicknessByCategoryAndEmployeeDetailsReport @TeamIds, '' + @DateFrom + '', '' + @DateTo + '', '' + @InputRankGroups + '', '' + @SubCategories )',N'@Teams nvarchar(34),@DateFrom datetime,@DateTo datetime,@InputRankGroups varchar(1),@SubCategories bit',@Teams=N'INSERT INTO @TeamIds VALUES (5); ',@DateFrom='2010-02-01 00:00:00',@DateTo='2010-04-30 00:00:00',@InputRankGroups=N'1',@SubCategories=1 When this sql runs it errors, on the dates. I have tried changing the format of the date but it does not help. If I remove the dates it works fine. Any help would be appreciated.

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  • Getting the callers of a specific function

    - by robUK
    Hello, GNU Emacs 23.1.1 I am just wondering is there any feature in emacs where I can find out what functions call a specific function. In my code, I normally have to do a search on the function name to see what functions calls it. It would be nice if I could display all the names of the functions where this specific function is being called from. many thanks for any suggestions,

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  • JQuery selector: pass on id from array into function

    - by user347256
    I have a list of items <div id="item1">somestuff</div> <div id="item2">somestuff</div> <div id="item3">somestuff</div> When someone clicks on one of these, I need to take some actions based on the id (the number). Let's say hide it. How can I make the function generic, and how can I pass the id into the function? $(document).ready(function() { $("#item-howcanImakethisselectorgeneric?").click(function () { $("#item-andhowcanIpasshteidintohere?").hide(); } } I'm a javascript/jquery newbie, any help (including rtfm) appreciated.

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  • PHP: question about passing parameters in URL's

    - by user248959
    Hi, i have this two lines: var_dump($parametros_post_signin); $this->redirect('prueba/aux?email='.$parametros_post_signin['signin']); the first one prints this: array 'signin' => array 'email_address' => string '' (length=0) 'password' => string '' (length=0) the second one takes to another action where i have this code: var_dump($request->getParameter('email')); that prints this: string 'password' (length=8) I expected it to print something like this: string '' (length=0) What should i do to the get value of the 'email_address' field ? Regards Javi

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  • [gtk+] run function in another thread than gui

    - by sterh
    Hello, I have simple C/gtk+ application. I have function in this app which load image in gtkimageview widget: gboolean main_win_open( MainWin* mw, const char* file_path) { ... //loading and displaing image in gtkimageview ... } The loading image is work, but i need to run this function in another thread then main gui form; I have function: void* argument_thread(void *args) { Data *data = (Data*)args; gdk_threads_enter(); main_win_open (data->win,data->argv); gdk_threads_leave(); } Data it's structure for main_win_open function arguments: typedef struct _Data { MainWin *win; char* argv; } Data; Then in main function i create thread and run it: int main(int argc, char** argv) { GError* err; GThread* thread; Data data; MainWin *win; // init thread support if(!g_thread_supported()) g_thread_init(NULL); gdk_threads_init(); // init GTK+ gtk_init (&argc, &argv); win = (MainWin*)main_win_new(); gtk_widget_show(GTK_WIDGET(win)); data.win = win; data.argv = argv[1]; if (argc == 2) { thread = g_thread_create((GThreadFunc)argument_thread,&data,FALSE, &err); } gdk_threads_enter(); gtk_main(); gdk_threads_leave(); } But when i try to run app from command line and try to load big-size image, gui is blocking. What's wrong? Thank you.

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  • How do I get regex support in excel via a function, or custom function?

    - by blunders
    It appears that regex (as in regular expressions) is not supported in excel, except via VBA. Is this so, and is it is, are there any "open source" custom VBA functions that support regex. In this case I'm looking to extract complex pattern within a string, but any implementation of a custom VBA function that expose support of regex within the function itself would be of use. If you know of semi-related function such as the IS function, feel feel to comment, though I'm really looking for a full regular expression implementation that is exposed via functions. Might even be open to a pay to use add-in if the implementation is good. If you have questions, please comment.

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  • boost test case for function taking user input

    - by oadams
    I have a function that takes in user input via std::cin: std::getline(std::cin, in); and creates a corresponding data structure by matching it with a regular expression. The function then returns this data structure. I'm using boost.test and I want to create a unit test to check that the output data type is correct given some inputs. However I don't know how to go about it since the input isn't passed as an argument to the function. EDIT: Is there a simple way to create a boost test case that feeds the function a string via standard input?

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  • Passing javascript to a function

    - by AJ
    Hello, Can I pass some Javascript to a function and then execute that Javascript from within the function, e.g. test("a = 1; b = 2; test2(a,b);"); function test(js) { // execute dynamically generated JS here. } Basically I have some code that is generated on the server and I want to pass that code to a JS function which when it has finished processing it executes the code passed as a parameter. This could also be useful for the parameter of setTimeout, then the code passed could be executed in the timeout event. Can this be done?

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  • How to access function inside PHP OOP

    - by Industrial
    Hi everyone, What do I need to do to call $this-two() from inside my function innerOne? Is that possible with PHP OOP? Here's the error I am recieving: Fatal error: Using $this when not in object context Here's how my code looks: class myClass { function one(){ function innerOne() { // Some code $this->two($var1, $var2); } // Some code innerOne(); } function two($var1, $var2) { // Does magic with passed variables return $var1 . $var2; } } Thanks a lot!

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  • i can't get variable in function.

    - by kaym
    i can't read the variable in the function, i want to use it outside the function, here is my code. var contentLoader:URLLoader = new URLLoader(); contentLoader.load(new URLRequest("http://localhost/data.php")); function onComplete(event:Event):void { var txtu:String = event.target.data; } contentLoader.addEventListener(Event.COMPLETE, onComplete); trace(txtu); thanks.

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  • Java generics: actual class as a generic parameter.

    - by user554916
    What do I write instead of "TheClass" to make this work? Or is there an alternative way to do it (possibly without making WithName and WithAge generic)? class Item { NeigborList<TheClass> neighbors; } class WithName extends Item { // here I want neighbors to be a NeighborList<WithName> String name; void someMethod() { System.out.println(neighbors.nearestTo(this).name); } } class WithAge extends Item { // here I want neighbors to be a NeighborList<WithAge> int age; void someOtherMethod() { System.out.println(neighbors.nearestTo(this).age); } }

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  • Haskell Binary Tree Function (map)

    - by Bizarro
    How can i define a Haskell function which will apply a function to every value in a binary tree? So i know that it is similar to the map function - and that its type would be: mapT :: (a - b) - Tree a - Tree b but thats about it...

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  • passing a parameter from an other model on ruby

    - by MAGE
    I'm very newbie in ruby and need your help. I must save a "Topic" and make it like this : @topic = Topic.new(params[:topic]) But I would like to pass an other information to this topic. It has a field "community_id" that link it to a community. The logged user has this information on his table. How can I pass the "community_id" from the logged user to the "community_id" of the "topic" created ? thx for your help

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  • Passing arguments to a function?

    - by dfjhdfjhdf
    I need to learn how to pass an associative array to a function so that I could do the following within the function: function someName($argums) { if (gettype($argums) != 'array' || !array_key_exists('myOneKey', $argums) || !array_key_exists('myOtherKey', $argums)) { return false; } /*do other stuff*/ } (That's how I would do in PHP what I am looking for in JavaScript.)

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  • AS3: Performance question calling an event function with null param

    - by adehaas
    Lately I needed to call a listener function without an actual listener like so: foo(null); private function foo(event:Event):void { //do something } So I was wondering if there is a significant difference regarding performance between this and using the following, in which I can prevent the null in calling the function without the listener, but am still able to call it with a listener as well: foo(); private function foo(event:Event = null):void { } I am not sure wether it is just a question of style, or actually bad practice and I should write two similar functions, one with and one without the event param (which seems cumbersome to me). Looking forward to your opinions, thx.

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  • C++ vector reference parameter

    - by Archanimus
    Hello folks, let's say we have a class class MyClass { vector<vector<int > > myMatrice; public : MyClass(vector<vector<int > > &); } MyClass::MyClass(vector<vector<int > > & m) { myMatrice = m; } During the instanciation of MyClass, I pass a big vector < vector < int and I find that the object is actually copied and not only the reference, so it takes the double of the memory ... Please, can anyone help me out with this problem, I'm stuck since too many time ... And thanks a lot!

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