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• Ruby: How do make my program trap and exit properly from a signal?

  - by Poul

  When I Ctrl C my program on linux I often get output that looks similar to a stack-dump (a crash). Can I catch the Ctrl-C signal and exit gracefully? Thanks!

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• Can XCode draw the call graph of a program?

  - by Werner

  Hi, I am new to Mac OSX, and I wonder if Xcode can generate , for a given C++ source code, the call graph of the program in a visual way. I also wonder if for each function, and after a run, whether it can also print the %time spent on the function If so, I would thank really some links with tutorials or info, after googling I did not find anything relevant Thanks

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• Is a C++ compiler allowed to emit different machine code compiling the same program?

  - by sharptooth

  Consider a situation. We have some specific C++ compiler, a specific set of compiler settings and a specific C++ program. We compile that specific programs with that compiler and those settings two times, doing a "clean compile" each time. Should the machine code emitted be the same (I don't mean timestamps and other bells and whistles, I mean only real code that will be executed) or is it allowed to vary from one compilation to another?

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• Why is "This program cannot be run in DOS mode" text present in .dll files?

  - by sharptooth

  Recently I opened a .dll file produced by Visual Studio 9 while compiling a native C++ DLL project and was surprised to see the "This program cannot be run in DOS mode" text near the beginning. Why have this text in .dll files?

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• How can I get and handle a return codes in a C program if sftp fails to put the file in a sftp serve

  - by Thi

  How can we get and handle the sftp return codes in a C program if sftp fails to put the file in a server? We need to transfer the files again if sftp fails to put it in the sftp server.

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• How to replace one object with another everywhere in the program?

  - by Entrase

  I don't really think there is some method to do this… Anyway… How can I replace one object with another everywhere in the program? It would be like all the references to an old object start to point to a new one.

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• How to elegantly say "something unknown is wrong with this program"?

  - by Anvaka

  Medicine has the term idiopathic cardiomyopathy. Cardiomyopathy means something is wrong with your heart, and idiopathic means "we have no idea why yours isn't working." I know we have heisenbugs, bohrbugs, mandelbugs, and so on, but I feel I'm lacking one more buzzword: what's the IT cousin to idiopathic cardiomyopathy? What's an elegant word or phrase for "something unknown is wrong with this program"?

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• Simple prolog program. Getting error: >/2: Arguments are not sufficiently instantiated

  - by user1279812

  I made a prolog program posAt(List1,P,List2) that tests whether the element at position P of List1 and List2 are equal: posAt([X|Z],1,[Y|W]) :- X=Y. posAt([Z|X],K,[W|Y]) :- K1, Kr is K - 1, posAt(X,Kr,Y). When testing: ?- posAt([1,2,3],X,[a,2,b]). I expected an output of X=2 but instead I got the following error: ERROR: /2: Arguments are not sufficiently instantiated Why am I getting this error?

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• Concurrent program languages for Chat and Twitter-like Apps.

  - by xRobot

  I need to create a simple Chat system like facebook chat and a twitter-like app. What is the best concurrent program languages in this case ? Erlang, Haskell, Scala or anything else ? Thanks ^_^

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• how to find out the page size of a processor using C program and malloc?

  - by cforfun

  is it possible to find out the page size of a processor using C program and malloc? and not by using sysconf() call?

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• java:I am trying to create Shotcut of any abc.exe through java program.

  - by Sanjeev

  I am making an installer in java swing it almost completed only one thing is left to do that is to create desktop shortcut of our software.I do not want to copy software on desktop but I want to create instance of that software like other MS software. How it can be done please help me. I am already copied my software in c:/Program files by using copy directory and I want to create shortcut on desktop .

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• How do I use mqueue in a c program on a Linux based system?

  - by Johan

  Hi How do I use mqueue (message queue) in a c program on a Linux based system? I'm looking for some good code examples that can show how this is done in a correct and proper way, maybe a howto. Thanks

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• How do i save an compile a program in befunge-93?

  - by David

  How do i save an compile a program in befunge-93? what do i need to save the file as? (like: fileName.what) How do i compile it?

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• Can JAX-WS host "web" service in desktop program?

  - by Fan

  Can Java (JAX-WS) host "web" service in desktop program? For example .net wcf can host services anywhere. Tnx all.

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• Can JAX-WS host "web" service in desctop program?

  - by Fan

  Can Java (JAX-WS) host "web" service in desctop program? For example .net wcf can host services anywhere. Tnx all.

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• What is the recommended way to support multiple languages in my C# program?

  - by LeeW

  Hi all, I'm about to start a desktop program that I want to add support for as many languages as I can. I'm going to be using C# and at least .Net 2.0. Is there a recommended way for adding support for multiple languages in the GUI and error messages? Many thanks

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• How to implement event listener in background of the main program in java?

  - by Johny

  Hi im a beginner so sorry for my question if it sounds naive. I want to implement a thread that runs in the background and listens all the time. By listening i mean, say it keeps check on a value returned from main thread and if the vaue exceeds certain figure, it executes some method, or say exits the program. If you could give me some idea or at least refer me to something useful, that'll be great.

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• (C++) Can you add a direct link into a C++ program with out a GUI?

  - by TheEliteOne

  Hello, I was wondering if you can add a link to a website in a C++ program running in the CMD Prompt type window (No GUI) If it's possible can some one please give me a few examples? Thanks.

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• Why does fatal error "LNK1104: cannot open file 'C:\Program.obj'" occur when I compile a C++ project

  - by Josh Sklare

  I've created a new C++ project in Visual Studio 2008. No code has been written yet; Only project settings have been changed. When I compile the project, I receive the following fatal error: fatal error LNK1104: cannot open file 'C:\Program.obj'

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• How to I "scan" a website(or page) for info, and bring it into my program?

  - by James

  Well, I'm pretty much trying to figure out how to pull information from a webpage, and bring it into my program(in Java). For example, if I know the exact page I want info from, for the sake of simplicity a Best Buy item page, how would I get the appropriate info I need off of that page? Like the title, price, description? What would this process even be called? I have no idea were to even began researching this :'(

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• How to capture google earth desktop program to bmp file?

  - by INs

  How to capture google earth desktop program window to bmp file? I used printwindow function, but it only captures controls, region with planet is empty. Google earth can be minimized, or hidden with other windows.

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• How to bundle bash completion with a program and have it work in the current shell?

  - by extempore

  I sweated over the question above. The answer I'm going to supply took me a while to piece together, but it still seems hopelessly primitive and hacky compared to what one could do were completion to be redesigned to be less staticky. I'm almost afraid to ask if there's some good reason that completion logic seems to be completely divorced from the program it's completing for.

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• Are there any pitfalls when calling functions from a C library in a C++ program?

  - by neuviemeporte

  I'm using a library which has both a C interface and a C++ interface in my C++ program. The C++ one is a bit immature and I must stick with the C one. I was wondering, in more general terms, is there anything specific to keep in mind when mixing C-style binary object files with a C++ project?

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• Which programing language presents a program as a tree?

  - by Roman

  I heard that a program can be presented as a tree. I also heard that there is a programming language whose syntax make this idea very clear. I mean that programs written in this language can be easily represented as a tree. Does anybody know what is the name of this language?

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• can I create a servlet Program with a doPost Method?

  - by saloni

  I am making a servlet program .It is working fine but now i am trying to make a method that calls from JSP but that method name should not be doPost or doGet . Is it possible?

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