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  • how to check if there is a division by zero in c

    - by user244775
    #include<stdio.h> void function(int); int main() { int x; printf("Enter x:"); scanf("%d", &x); function(x); return 0; } void function(int x) { float fx; fx=10/x; if(10 is divided by zero)// I dont know what to put here please help printf("division by zero is not allowed"); else printf("f(x) is: %.5f",fx); }

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  • cannot get ip address on a virtual machine

    - by user175084
    so i have a code which gets me the ip address of a machine i am wroking on. so if my gui is published on the server and i access it from my local machine it gives me tha address of my local machine and when i access the gui from the server itself it gives me the server address.. which is fine. But when i put the gui on a VM server and run it from a VM server itself i dont get the ip address. this works fine if i access it from another machine but does not work only when accesing gui on VM server.. please help me out as i get this value ":::1" here is my code: string ipaddress; //string ipaddress = Request.ServerVariables["LOCAL_ADDR"]; string ipaddress = Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; if (ipaddress == "" || ipaddress == null) string ipaddress = Request.ServerVariables["REMOTE_ADDR"]; Label5.Text = ipaddress; thank you

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  • problem in leigeber's sorting

    - by developer
    iam using leigeber's sorting javascript to sort my data on my page......i took the js from here :- leigeber's sorting javascript Now this is shwoing highlighted sorted column and all and its all perfect.Now iam having some negative and some positive values in my data and i want to show those negative data in red color and positive in green.This whole sorting thing is using js and css to do the highlighting and sorting.Iam a bit confused now and cant make it out that how i can assign red color to the negative ones and green to the positive ones as js is returning the data as an object i.e. a complete row and i cant make 1 column's data red or green.Will it be done by js itself or with the help of stylesheet to find -ves and +ves.Im totally lost and dont know how to do it.Please help!!!! this is an example of hte data iam using this whole sorting thing on:- -Name- -Price- -loss- -Pts- abc 361.15 -5.68 -21.75 abc2 1072.35 -5.24 -59.25 abc3 512.35 5.24 28.35 abc4 335.2 -5.02 -17.7 abc5 318.6 5.01 -16.8 abc6 76.15 -4.15 3.3

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  • To store images from UIGetScreenImage() in NSMutable Array

    - by sujyanarayan
    Hi, I'm getting images from UIGetScreenImage() and storing directly in mutable array like:- image = [UIImage imageWithScreenContents]; [array addObject:image]; [image release]; I've set this code in timer so I cant use UIImagePNGRepresentation() to store as NSData as it reduces the performance. I want to use this array directly after sometime i.e after capturing 1000 images in 100 seconds. When I use the code below:- UIImage *im = [[UIImage alloc] init]; im = [array objectAtIndex:i]; UIImageWriteToSavedPhotosAlbum(im, nil, nil, nil); the application crashes. And I dont want to use UIImagePNG or JPGRepresentation() in timer as it reduces performance. My problem is how to use this array so that it is converted into image. If anybody has idea related to it please share with me. Thanks in Advance.

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  • Learning about tests for junior programmers

    - by RHaguiuda
    I`m not sure if its okay to ask it on stackoverflow. Ive been reading a log about tests, unit tests, tests frameworks, mocks and so on, but as a junior programmer I dont know anything about tests, not even where to start! Can anyone explain to young programmers about tests, how they`re run, where and what to test, what is unit testing, integration testing, automated tests? How much to test? And more important: how much test is enough? I belive this would be very helpfull. If possible indicate a few books too about these subjects. Thanks

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  • How to add multiple values to the ViewData using asp.net MVC

    - by kumar
    Hello Friends, I have one ActionResult method public ActionResult StudentInfo(string id,string studentType) { var Info= Student.GetStudentInfo(Convert.ToInt32(e),studentType); return PartialView(Info); } } This ActionResult is executed multiple time accoording the number user selected from previous page..each and every student id and StudentType is passed by that view to this ActionResult. my question is there any way that in ViewData we can store all these id's and studentType's so that I can use these id' and StudentType's in other ActionResult? bec I need only these two things in other ActionResult? I can implement this using cache but I dont want to do with that. thanks for patience..

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  • Sync a WinForm with DatagridView

    - by Ruben Trancoso
    I have a Form with a DataGridView which DataSource is a BindingSource to a table. This view will have a single row selection and a button to delete, edit the current selected row in a popup Form and a insert button that will use the same Form as well. My question is how can I sync the pop Form with the current row? I tryied to use the RowStateChanged event to get and store the current selected Row to be used in the Form but I coudnt. After the event I get the row that was selected before. Other thing I dont understand yet in C# how to have a single recordSet and know wich is the current record even if its a new being inserted in a way that once in the Form all data being entered will show up at the same time in the DataGridView.

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  • How do I use LDAP proxy user authentication from .net?

    - by DN
    I have a .net web application that uses simple bind to query the LDAP. The application uses integrated windows authentication. Do you have any recommendations on which option to use to authenticate against the LDAP: 1. simple LDAP bind using the logged in user's credentials 2. simple LDAP bind using a service account created for the application's use 3. LDAP proxy user authentication - I dont have enough info about this, so i'd be grateful if someone could explain it's benefit, recommended use and sample .net code to do the query.

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  • Sql Server - INSERT INTO SELECT to avoid duplicates

    - by Ashish Gupta
    I have following two tables:- Table1 ------------- ID Name 1 A 2 B 3 C Table2 -------- ID Name 1 Z I need to insert data from Table1 to Table2 and I can use following sytax for the same:- INSERT INTO Table2(Id, Name) SELECT Id, Name FROM Table1 However, In my case duplicate Ids might exist in Table2 (In my case Its Just "1") and I dont want to copy that again as that would throw an error. I can write something like this:- IF NOT EXISTS(SELECT 1 FROM Table2 WHERE Id=1) INSERT INTO Table2 (Id, name) SELECT Id, name FROM Table1 ELSE INSERT INTO Table2 (Id, name) SELECT Id, name FROM Table1 WHERE Table1.Id<>1 Is there a better way to do this without using IF - ELSE? I want to avoid two INSERT INTO-SELECT statements based on some condition. Any help is appreciated.

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  • How to capture shift-tab in vim

    - by Yogesh Arora
    I want to use shift-tab for auto completion and shifting code blocks visually. I have been referring to Make_Shift-Tab_work . That link talks about mapping ^[[Z to shift-tab . But i don't get ^[[Z when i press shift-tab. i just get a normal tab in that case. It then talks about using xmodmap -pke | grep 'Tab' to map tab keys. According to that the output should be keycode 23 = Tab or keycode 23 = Tab ISO_Left_Tab However i get keycode 22 = Tab KP_Tab if i use xmodmap -e 'keycode 22 = Tab ISO_Left_Tab' and after that xmodmap -pke | grep 'Tab', I still get keycode 22 = Tab KP_Tab This means running xmodmap -e 'keycode 22 = Tab ISO_Left_Tab' has no effect. In the end the link mentions using xev to see what X recieves when i press shift-tab. But i dont have xev on my system. Is there any other way i can capture shift-tab in vim

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  • Wpf SelectedItem wont work for a Combobox in a ListView

    - by ChristianRo
    Hi there, I´ve got a problem with a Combobox in a ListView. I´ve got a class called "Substrate". This class contains an object of a class called "SubstrateType". I want to show the objects of the class "Substrate" in a Listview. Each property of the "Substrate" is presented in the columns of the Listview. For the different "SubstrateType" I want to use a combobox. In the XAML I tried it like this: <ComboBox Name="CBType" ItemsSource="{Binding ElementName=SettingsSubstrate, Path=TypeList}" SelectedItem="{Binding Path=Substrate.SubstrateType}" DisplayMemberPath="Description"/> In the code-behind I got two ObservableCollections. One for all Substrates and one for all possible SubstrateTypes. The combobox displays all SubstrateTypes if you click on it. But the combobox has no selecteditem if you dont select one. http://i44.tinypic.com/2eakxav.png Thanks in advance.

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  • How to register a custom type in Hibernate using org.springframework.orm.hibernate4.LocalSessionFactoryBean

    - by Luis
    I'm migrating from hibernate 3 to hibernate 4, In hibernate 3 the way I was registering a custom type was: public class AnnotationSessionFactoryBean extends org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean { private Collection<? extends BasicType> customTypes; public Collection<? extends BasicType> getCustomTypes() { return customTypes; } public void setCustomTypes(Collection<? extends BasicType> customTypes) { this.customTypes = customTypes; } @Override protected Configuration newConfiguration() throws HibernateException { Configuration configuration = super.newConfiguration(); if (CollectionUtils.hasEntries(customTypes)) { for (BasicType customType:customTypes) { configuration.registerTypeOverride(customType); } } return configuration; }} I'm now trying to do the same operation but using hibernate 4, my question is how is the best way to do this? since I dont have access do change configuration when using "org.springframework.orm.hibernate4.LocalSessionFactoryBean" instead of "org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean". Thanks

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  • SmartGWT Widgets not displaying properly

    - by Holograham
    I have a basic GWT Maven project going. I added SmartGWT and started playing around with some widgets and nothing displays correctly. The ListGrid seems to somewhat render but things are off and even data isnt showing up (though the rows respond to indicate there is data within the row). Sorting arrows dont appear but are clickable, and filters are wildy off. Whats causing this. I deleted everything in the .css file. GWT newbie here.

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  • JS settimeout doesn’t work in IE8…

    - by Nagesh
    <html> <head> <script> var i; i = 0; function loop() { i = i + 1; alert(String(i)); setTimeout("loop()",1000); } setTimeout("loop()",1000); </script> </head> <body> </body> </html> Please try the above code in IE8 it will not give alert message for every 1 sec if you hold right click. But in firefox it will give alert message even though if you dont release the right click. I want the firefox functionality in IE8.

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  • Hiding the contents of your compiled Applications (.exe, .dll). C# code

    - by Tommy
    Well, as we all know, you can decompile C# (dll) assemblies to find what code lays inside of them. What I do not know, is how i can hide that code. The issue: I'd like to release some dll's that will add extra functionality to applications, but i thats all i want them to be used for. adding functionality to applications. I dont want others knowing the real source code behind it. Let me know if its possible to do that. Thanks!

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  • Extracting text from a file where date -time is the index

    - by Soham
    I have got around 800 files of maximum 55KB-100KB each where the data is in this format Date/Time/Float1/Float2/Float3/Float4/Integer Date is in DD/MM/YYYY format and Time is in the format of HH:MM Here the date ranges from say 1st May to 1June and each day, the Time varies from 09:00 to 15:30. I want to run a program so that, for each file, it extracts the data pertaining to a particular given date and writes to a file. I will not face any problem in writing into directory operations. I am trying to get around, to form a to do a search and extract operation. I dont know, how to do it, would like to have some idea. Thanks Soham

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  • Get graphics information from font file. How to develop font parser similar to PDFView's font parser

    - by HBA
    Hi, I am trying to convert text into graphics using c#. My input is character string and output is bitmap with the input text. After lot of search I found some ways to do it, I found some techiques which uses this kind of techinque. For Example While creating Captcha, we have to print the character in the bitmap. But for that I should have the font installed in my windows. I can not perform such operation without installing the font. I have .ttf file with me but I dont want to install it because my work for that font is temporary only. Is there any way where I can extract out the Font's graphical information by providing the Character? I have also found font parser code http://swinglabs.java.sun.com/hudson/job/PDFRenderer%20Weekly%20Build/javadoc/com/sun/pdfview/font/package-summary.html Can anyone please provide me how to develpo similar thing using c#.Net? Or From where can I get the algorithm to parce font?

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  • Virtual/soft buttons for (Home, menu,Back, Search) always on top?

    - by Ken
    How can I make an app or maybe service that looks like (Nexus One touch buttons) for the navigation keys (Home, menu,Back, Search) The buttons should always be visibly and always stay on top and send the command to the app thats running. Someone have ideas and sample codes how to do that? * I see an app with name (Smart Taskmanager) wich always detect when you touch the right side of the screen and then detect when you slide the finger to left. So I think its possible, with this function I think its possible to implementate the code to simulate the (Home, Meny, Back, Search) buttons. * I also see and test an app wich show a "cracked display" always ontop so that tecnic maybe shold be useful to always show the buttons/bitmanp on top. Thoose function, to show the button and catch the "touch event" and send the event to the active program, thats what i dont can figure out how to do. Thats my thought! I Hope there are some deep developer wich know this solution! Regards Ken

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  • Instrumentation class in the Android API.

    - by Riyas
    Hi All, I have question on the Android API. Android API provides a class called "Instrumentation" class. What is the use of this class? Is the Instrumentation class be used only together with Junit for unit testing. Can Junit framework can be used to test the methods of the Android API without using the Instrumentation class. Since Junit package has been included in the Android package, I hope we dont need to use install separately for unit testing. I would appreciate if you could provide me the information as i can't find these clear information anywhere on the Web. If we use Junit test framework to test the Android API, can we have test results in the UI format rather than test format.? Thanks a lot. Apprecite your time. Regards, Riyas

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  • iPhone image app not releasing memory as in instruments using imageNamed

    - by Tankista
    hi, im building iPhone app that downloads images (UIImageView) from internet and adding them to UIScrollView. This scroll view could contain 20 or more UIImageViews. Iam adding UIImages to UIImageView like this: UIImageView *newView = [[UIImageView alloc] initWithImage: image]; Then I just scroll these images like in photo app. Problem is, when I put just 3 UIImageViews in UIScrollView everything works fine, but when I put more images, more memory is used, so that app can crash after 15 or more images. I can understand it that more images alloc more memory, but in Instruments i get allocated max 2-3 MB, but in device memory raises until it crashes. When I use simulator for OS 3.0 i can see memory rising like on device. On higher versions I dont see this memory raise, why is that?

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  • How to get the headers for all the pages of the exported data from php to pdf

    - by udaya
    Hi I am exporting data from php page to pdf when the datas exceeed the page limit the header is not available for the consecutive pages function where i call the export to pdf is function changeDetails() { $bType = $this-input-post('textvalue'); if($bType == "pdf") { $this->load->library('table'); $this->load->plugin('to_pdf'); $data['countrytoword'] = $this->AddEditmodel1->export(); $this->table->set_heading('Country','State','Town','Name'); $out = $this->table->generate($data['countrytoword']); $html = $this->load->view( 'newpdf',$data, true); pdf_create($html, $cur_date); } } This is my view page from which i export data to pdf Name Country State Town Here I am getting the result as page:1 Name country State Town udaya india Tamilnadu kovai chandru srilanka columbo aaaaa page:2 vivek england gggkj gjgjkj in the page 2 i dont get the headers name, country ,state and town

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  • "Could not load file or assembly" error on trying to access auxillary assemblies from COM

    - by Codex
    We have the project structure as follows: COMExposedCCW.dll -refers- BusinessLayer.dll -refers- Utils.dll COMExposedCCW.dll -refers- Utils.dll The COMExposedCCW.dll has been registered for COM interop. From the COM application{Excel} we can successfully create the CCW object and access its properties, but when we try to invoke methods that refer to the Business/Utils layer, it throws an exception that the file or assembly{Business/Utils} could not be found. The Business/Utils dlls are present in the same folder as the CCW. On copying the Business/Utils to the COM application directory it works fine. I've tried the following: Set "HintPath/" in the CCW project I dont want to dynamically load the assemblies using Reflection {there should be a more elegant solution} Thanks in advance.

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  • Facebook PHP API Calls

    - by Daniel Hertz
    Hello, So I simply want to add my current facebook status to my personal website. I have been looking at tutorials and other posts about fb and fb connect, but I am still confused. Is there anyway to do this with simple REST calls? Like twitter or flickr? From what I understand I dont need FB connect because I am just getting my own status and do not need to get any info from other visitors. Any know how to do this?

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  • Getting the median of 3 values using scheme's

    - by kristian Roger
    The problem this time is to get the median of three values (easy) I did this: (define (med x y z) (car(cdr(x y z))) and it was accepted but when testing it: (med 3 4 5) I get this error: Error: attempt to call a non-procedure (2 3 4) And when entering letters instead of number i get: (md x y z) Error: undefined varia y (package user) Using something besides x y z I get: (md d l m) Error: undefined variable d (package user) the question was deleted dont know how anyway write a function that return the median of 3 values Sorry for editing the question I got that I should put the values in order first not just a sill car and cdr thing so I did so 33> (define (med x y z) (if(and( (<x y) (<y z) y if(and( (<y x) (<x z) x z))))) Warning: invalid expression (if (and< (<x y) (<y z) y if (and ((<y x) (<x z) x z)))) but as u see Im getting a warning so what is wronge ?

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  • How to change datagrid cell's itemRenderer dynamically

    - by Shubham Goyal
    i have a simple datagrid having 2 columns named as image and place. where image column has mx.controls.Image itemRenderer and place is simple. my requirement is to change itemRenderer of image cell when it will be clicked. i means to say when user click on any image from image column than i want to show that image path in editable mode and when user edit that path then the selected cell will start displayed the updated image. i dont know how to do this and getting depressed . please anyone help me ! :(

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