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  • Looking for early paper about compiling object-oriented code

    - by Robert Kosara
    I remember reading a paper a long time ago that talked about object-oriented programming. I believe that this was from the early 1980s or perhaps even before then. This was at the time when object-oriented programming was still done through pre-processors, and one thing that stuck with me is this: it argued that you could write code in either procedural or object-oriented fashion, and after preprocessing/compiling, you would end up with the exact same machine code. Does anybody know which paper I'm talking about?

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  • Why doesn't every, and I mean it, language have this feature?

    - by dada
    Some time ago I had a look into Ruby and one of the things which stood out most for me was the way of using symbols. While you to use defines or strings like in C++ or Python as an alternative, in Ruby you just write :mySymbol and the interpreter takes over the enumeration for you. I can't see any disadvantage this feature has, so why is it missing in say, PHP and Python?

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  • How to Log Exception in a file?

    - by Ismail
    I want to be able to do logging in every catch block. Something like this. catch (Exception exception) { Logger.Write(exception); } and then the settings in the configuration will pick up the Message and StackTrace property etc using customer listener. I would like to use Enterprise Library Logging Application Block. I'm sure someone must have done this already.

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  • Connecting to an MQ: Newbie question

    - by deltamatrix
    Hi, I am a novice with Websphere MQ and require some novice help. I am using Websphere MQ Explorer to connect to a queue but do not know how to write the connection string. I have all the details (host, port, channel, queue manager name) but do not know how to put them together correctly as a connection string. Can any help this novice? Thanks

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  • How can I test a windows dll to determine if it is 32bit or 64bit?

    - by morechilli
    I'd like to write a test script or program that asserts that all dlls in a given directory are of a particular build type. I would use this as a sanity check at the end of a build process on an sdk to make sure that the 64bit version hasn't somehow got some 32bit dlls in it and vice versa. Is there an easy way to look at a dll file and determine its type? The solution should work on both xp32 and xp64.

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  • client generated double submit cookie, cross site request forgery prevention

    - by james
    in a double-submitted cookie csrf prevention scheme, is it necessary for the server to provide the cookie? it seems i could have javascript on the clients page generate and set a cookie "anti_csrf", then double submit that (once as a cookie, done by the browser, and once in the body of the request). a foreign domain would not be able to read or write the "anti_csrf" cookie to include it in the body of a request. is this secure, or am i overlooking something?

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  • Format of DataGridView value

    - by Vadim
    I have a DataGridView which is filling from Table in SQL Server Database. One of it's columns is "price". Type of column in DGV is automatically sets as Decimal. In some cases I need to write in cells of this column text like "none", instead of price. How can I do it? DGV.Item("price", 0).Value = "none" doesn't work, because of decimal type of a cell.

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  • Can I access the keychain on the iPhone with MonoTouch?

    - by TrolleFar
    Hello, I have recently started to develop applications for iPhone with MonoTouch and have to store user names and passwords on the phone. I want to use the keychain for this but can't find anything in the MonoTouch documentation about it. Is it possible to use it directly with MonoTouch or will I have to write some C++/C/Objective-C code that uses the keychain and export it to MonoTouch?

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  • django display m2m elements in a template

    - by dana
    if a have a declaration like theclass = Classroom.objects.get(classname = classname) members = theclass.members.all() and i want to display all the members(of a class) in a template, how should i do it?? if i write: {{theclass.members.all}} the output is an empty list(though the class has some members) How should the elements of a m2m table be displayed in a template? thanks!

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  • how to use exceptions in this scenario?

    - by jess
    Hi, I have a method which handles a set of records.This method,return true\false after processing.So,if all the records are processed(doing some db updates),will return true.Now,suppose after processing 1 record,some exception is thrown,should I write result=false(at the end of method result is returned) in catch block? And,allow processing of other records to be done?

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  • c++ volatile multithreading variables

    - by anon
    I'm writing a C++ app. I have a class variable that more than one thread is writing to. In C++, anything that can be modified without the compiler "realizing" that it's being changed needs to be marked volatile right? So if my code is multi threaded, and one thread may write to a var while another reads from it, do I need to mark the var volaltile? [I don't have a race condition since I'm relying on writes to ints being atomic] Thanks!

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  • Getting the GUID for any given path to sharepoint.

    - by user327823
    Hey, I'm trying to get the GUID of a given sharepoint URL. I don't mind using the API or the webservices or Sharepoint's database. if i were to write a function, it's signature would be: //get a GUID from path. string GetGuidFromPath(string path){} I had a lead: SPContentMapProvider but it doesn't seem to get the right info. Thank you!

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  • Jaxb to generate the XML directly to the OutputStream

    - by sonu
    Hi, I have a 500Mb csv file. I need to convert it into XML file. I am using the Jaxb to created the xml file. It is working fine for small amout of data. but for large amout of data like 300 mb it is throwing out of memory exception. Can anyone tell me that How can I create each element and write it into a file without creating the whole tree using the jaxb?" Thanks Sonu

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  • In Asp.net i'm not able to catch any exception properly?

    - by Anand
    In Asp.net (c#),i'm not able to catch exception(FileNotFoundException) properly... i don't know the reason..Actually File s not there..But catch statement fails to catch the exception.. here is the code.. try { System.Drawing.Image imgg1 = System.Drawing.Image.FromFile(Server.MapPath("").ToString() + "\\images\\img1.jpg"); } catch (FileNotFoundException) { Response.Write("<script>alert('Please Select and upload Student's Photo');</script>"); }

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  • Sorting a 2 dimensional array on multiple columns

    - by Anon
    I need to sort a 2 dimensional array of doubles on multiple columns using either C or C++. Could someone point me to the algorithm that I should use or an existing library (perhaps boost?) that has this functionality? I have a feeling that writing a recursive function may be the way to go but I am too lazy to write out the algorithm or implement it myself if it has been done elsewhere. :-) Thanks

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  • g++ -fsyntax-only unit test

    - by anon
    I'm trying to figure out if g++ -fsyntax-only does only syntax checking or if it expands templates too. Thus, I ask stack overflow for help: is there to write a program so that syntactically it's valid, but when template expansion is done, an error occurs? Thanks!

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  • Example of moving from MySQL to NoSQL?

    - by OverTheRainbow
    Hello, For a Facebook-like site, ie. which is write-intensive and delivers user-customized pages, I'd like to build a prototype to investigate whether the document-centric NoSQL architecture would be a good alternative to sharding and reduce the load on the single master (+ multiple slaves) that we currently use and is the bottleneck. Does someone know of a good article that would give actual, simple examples of going from a relational layout in MySQL to a NoSQL layout? Thank you.

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