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  • C - equivalent of .NET Console.ReadLine

    - by John Williams
    I need to accomplish the same behavior as .NET Console.ReadLine function provides. The program execution should continue when the user pushes enter key. The following code is not sufficient, as it requires additional input: printf ("Press Enter to continue"); scanf ("%s",str); Any suggestions?

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  • Can anyone explain UriMatcher (Android SDK)?

    - by mobibob
    I have been tasked with designing my web services client code to use the utility class UriMatcher in the Android SDK. Unfortunately, the example in the Dev Guide does not relate to anything in my mind. I know I am missing some fundamental points to the functionality and possibly about Uri itself. If you can tie it to some web APIs that are accessible with HTTP POST request, that would be ideal.

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  • nested QMap in qt

    - by goutham
    I am trying to use this code in my QT app QMap<QString,QMap> but there is a build problem it says C:/****/****/****/***/domparser.h:14: error: type/value mismatch at argument 2 in template parameter list for 'template<class Key, class T> class QMap'

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  • Containers of reference_wrappers (comparison operators required?)

    - by kloffy
    If you use stl containers together with reference_wrappers of POD types, the following code works just fine: int i = 3; std::vector< boost::reference_wrapper<int> > is; is.push_back(boost::ref(i)); std::cout << (std::find(is.begin(),is.end(),i)!=is.end()) << std::endl; However, if you use non-POD types such as (contrived example): struct Integer { int value; bool operator==(const Integer& rhs) const { return value==rhs.value; } bool operator!=(const Integer& rhs) const { return !(*this == rhs); } }; It doesn't suffice to declare those comparison operators, instead you have to declare: bool operator==(const boost::reference_wrapper<Integer>& lhs, const Integer& rhs) { return boost::unwrap_ref(lhs)==rhs; } And possibly also: bool operator==(const Integer& lhs, const boost::reference_wrapper<Integer>& rhs) { return lhs==boost::unwrap_ref(rhs); } In order to get the equivalent code to work: Integer j = { 0 }; std::vector< boost::reference_wrapper<Integer> > js; js.push_back(boost::ref(j)); std::cout << (std::find(js.begin(),js.end(),j)!=js.end()) << std::endl; Now, I'm wondering if this is really the way it's meant to be done, since it seems impractical. It just seems there should be a simpler solution, e.g. templates: template<class T> bool operator==(const boost::reference_wrapper<T>& lhs, const T& rhs) { return boost::unwrap_ref(lhs)==rhs; } template<class T> bool operator==(const T& lhs, const boost::reference_wrapper<T>& rhs) { return lhs==boost::unwrap_ref(rhs); } There's probably a good reason why reference_wrapper behaves the way it does (possibly to accomodate non-POD types without comparison operators?). Maybe there already is an elegant solution and I just haven't found it.

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  • String::New: what is it?

    - by JavaMan
    I am from a Java background and is learning C++. I encountered the following C++ code: String source = String::New("'Hello' + ', World'"); As what I understand so far, this should be a call to static member function 'New' of class 'String'. But, I've searched through the whole header file defining 'String', there is not any static member named 'New' in the String class or its super classes. Is there any special meaning attached to String class or the New member function in C++?

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  • C++ display stack trace on exception

    - by rlbond
    I want to have a way to report the stack trace to the user if an exception is thrown. What is the best way to do this? Does it take huge amounts of extra code? To answer questions: I'd like it to be portable if possible. I want information to pop up, so the user can copy the stack trace and email it to me if an error comes up.

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  • Web player which can supports intranet url and frame timecode ?

    - by user284523
    I have looked at Flowplayer, it seems it doesn't support frame timecode. I then looked at JW Player http://www.longtailvideo.com/support/forum But I'm not sure as I can't see any sample code to do this. Anyone has experience with Flowplayer or JW Player or any other suggestion ? Could Flashplayer do this also ? Are the above players based on Flashplayer ?

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  • Make Visual Studio to show All Compile Errors!

    - by BDotA
    Visual studio does not show all the compile errors at once. for example one time it says I have two errors and when I fix them then 102 more compile errors are showing up and these new errors are not dependent on those two previous errors. How can we tell it to go through all the code and show all compile errors at once

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  • DateTime.Now question

    - by Tony
    Hello, I am using a couple varaibles that have value of DateTime.now for both database and web services purpose. Now, if someone asks you that how I am handling non-machine timezone, is that question refering that how the code will handle in case if the application gets deployed to machines in different time zones? To give more information, the application will manipulate data from different time zones. Thank you.

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  • Grouping Months of a particular Time span together using DateTime.

    - by Calibre2010
    public static string TimeLine2(this HtmlHelper helper, string myString2) { StringBuilder myString3 = new StringBuilder(); DateTime start = new DateTime(2010, 1, 1); DateTime end = new DateTime(2011, 12, 12); myString3.Append("<table>"); myString3.Append("<tr>"); for (DateTime date = start; date <= end; date = date.AddDays(1)) { DayOfWeek dw = date.DayOfWeek; var g = date.Month; var sun = " "; switch (dw) { case DayOfWeek.Sunday: sun = "S"; break; case DayOfWeek.Monday: sun = "M"; break; case DayOfWeek.Tuesday: sun = "T"; break; case DayOfWeek.Wednesday: sun = "W"; break; case DayOfWeek.Thursday: sun = "T"; break; case DayOfWeek.Friday: sun = "F"; break; case DayOfWeek.Saturday: sun = "S"; break; } myString3.Append("<td>" + sun + " " + g + "</td>"); } myString3.Append("</tr>"); myString3.Append("<tr>"); for (DateTime date = start; date <= end; date = date.AddDays(1)) { var f = date.Day; myString3.Append("<td>" + f + "</td>"); } myString3.Append("</tr>"); myString3.Append("</table>"); return myString3.ToString(); } Basically, what I have here is a few loops showing all the days of the week and also all the days in a month. This is all placed inside of a table, so you get MTWTFSSMT W T F S S M M TWTFSSM 12345678910 11 12 13 14 + + to 31 1234567 I'm trying to code a way in which I can split all of these days of the week and days in months so that my code returns each month with all its days in the month and all its days of the week, not just all my months between my timeSpan but splits them so MAY MTWTFSSMTWTFSSMTWTFSSMTWTFSSMTWTF 12345678 JUNE MTWTFSSMTWTFSSMTWTFSSMTWTFSSMTWTF 123456789

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  • Removing comments using Perl

    - by justintime
    Something I keep doing is removing comments from a file as I process it. I was was wondering if there a module to do this. Sort of code I keep writing time and again is while(<>) { s/#.*// ; next if /^ \s+ $/x ; **** do something useful here **** }

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  • iphone audio plays on simulator but not on device

    - by amarsh-anand
    The following code plays well on the simulator but the audio doesnt play on the actual device. I have tries aif, wav and mp3 ... all three with the same behaviour. Please sugest what could be wrong. SystemSoundID aSound; AudioServicesCreateSystemSoundID(CFBundleCopyResourceURL(CFBundleGetMainBundle(),CFSTR("drop"), CFSTR("wav"), NULL), &aSound); AudioServicesPlaySystemSound(aSound);

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  • cancel an ASIHTTPRequest thread

    - by user262325
    Hello evryone I have some codes to use ASINetworkQueue as multi thread download ASINetworkQueue *networkQueue; NSURL *url = [NSURL URLWithString:s]; ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url]; [networkQueue addOperation:request]; [networkQueue go]; if I try to use the code below to cancel the thread with index k [[[networkQueue operations] objectAtIndex:k] cancel]; I notice all requests in ASINetworkQueue were cancelled and stop working. Welcome any comment Thanks interdev

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  • Failure sending mail

    - by jothiprasadb
    Hi, When i tried to send mail from Windows service, i got the exception with message "Failure sending mail". The same code works in the windows forms application. The windows service is running in local system account? Kindly help me in resolving this issue. Thanks, Jothi Prasad

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  • Parse 2 dimensional JSON array in Javascript

    - by MrG
    I have a two dimensional JSON array where each element contains several attributes. The example below is intentionally simplified: var map_data = { "1": {"1":{"name":"aa"},"2":{"name":"bb"}}, "2": {"1":{"name":"cc"},"2":{"name":"dd"}} }; I try to parse the data but .length doesn't work: for(x=1; x<=map_data.length; x++) { for(y=1; y<=map_data[x].length; y++) { // CODE } } Many, many thanks!

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  • Several numpy arrays with SWIG

    - by Petter
    I am using SWIG to pass numpy arrays from Python to C++ code: %include "numpy.i" %init %{ import_array(); %} %apply (float* INPLACE_ARRAY1, int DIM1) {(float* data, int n)}; class Class { public: void test(float* data, int n) { //... } }; and in Python: c = Class() a = zeros(5) c.test(a) This works, but how can I pass multiple numpy arrays to the same function?

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  • flv from vlc to ffmpeg live video error when no sound temporarily

    - by dvch
    Hi When we get live stream from vlc to ffmpeg , wherever there is sometimes 5-6 second no sound part of video , then ffmpeg is dead with this log flv @ 0x8b426d0]illegal ac vlc code at 4x6 [flv @ 0x8b426d0]Error at MB: 142 [flv @ 0x8b426d0]concealing 257 DC, 257 AC, 257 MV errors [mpegts @ 0x8b44e50]dts < pcr, TS is invalid Is there anyway to avoid this problem ?

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  • Python Copy Through Assignment?

    - by Marcus Whybrow
    I would expect that the following code would just initialise the dict_a, dict_b and dict_c dictionaries. But it seams to have a copt through effect: dict_a = dict_b = dict_c = {} dict_c['hello'] = 'goodbye' print dict_a print dict_b print dict_c As you can see the result is as follows: {'hello': 'goodbye'} {'hello': 'goodbye'} {'hello': 'goodbye'} Why does that program give the previous result, When I would expect it to return: {} {} {'hello': 'goodbye'}

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  • QListView how to add column ?

    - by Samir
    How can I add columns to QListView control. Found a method addColumn while seardhing, but in my Qt Creator 1.2.1 based on Qt 4.5.2(32 bit) QListView doesn't have such method at all !!! So how would I add columns ? Say I have 3 columns then what is the code to add a row ?

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  • Advice for Architecture Design Logic for software application

    - by Prasad
    Hi, I have a framework of basic to complex set of objects/classes (C++) running into around 500. With some rules and regulations - all these objects can communicate with each other and hence can cover most of the common queries in the domain. My Dream: I want to provide these objects as icons/glyphs (as I learnt recently) on a workspace. All these objects can be dragged/dropped into the workspace. They have to communicate only through their methods(interface) and in addition to few iterative and conditional statements. All these objects are arranged finally to execute a protocol/workflow/dataflow/process. After drawing the flow, the user clicks the Execute/run button. All the user interaction should be multi-touch enabled. The best way to show my dream is : Jeff Han's Multitouch Video. consider Jeff is playing with my objects instead of the google maps. :-) it should be like playing a jigsaw puzzle. Objective: how can I achieve the following while working on this final product: a) the development should be flexible to enable provision for web services b) the development should enable easy web application development c) The development should enable client-server architecture - d) further it should also enable mouse based drag/drop desktop application like Adobe programs etc. I mean to say: I want to economize on investments. Now I list my efforts till now in design : a) Created an Editor (VB) where the user writes (manually) the object / class code b) On Run/Execute, the code is copied into a main() function and passed to interpreter. c) Catch the output and show it in the console. The interpreter can be separated to become a server and the Editor can become the client. This needs lot of standard client-server architecture work. But some how I am not comfortable in the tightness of this system. Without interpreter is there much faster and better embeddable solution to this? - other than writing a special compiler for these objects. Recently learned about AXIS-C++ can help me - looks like - a friend suggested. Is that the way to go ? Here are my questions: (pl. consider me a self taught programmer and NOT my domain) a) From the stage of C++ objects to multi-touch product, how can I make sure I will develop the parallel product/service models as well.? What should be architecture aspects I should consider ? b) What technologies are best suited for this? c) If I am thinking of moving to Cloud Computing, how difficult/ how redundant / how unnecessary my efforts will be ? d) How much time in months would it take to get the first beta ? I take the liberty to ask if any of the experts here are interested in this project, please email me: [email protected] Thank you for any help. Looking forward.

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  • Some nav buttons working, others not

    - by boz
    the buttons within my submenue movie clip don't work. the one's not within a submenu work fine. my code validates and i'm not getting any errors any idea on what else i should be checking? ///this one doesn't work//// aboutSub.bio.addEventListener(MouseEvent.CLICK, goBio); function goBio(evtObj:MouseEvent) { gotoAndStop("bio"); } /// this one works//// home.addEventListener(MouseEvent.CLICK, gohome); function gohome(evtObj:MouseEvent) { gotoAndStop("home"); }

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  • XCode: Adjusting indentation of auto-generated braces?

    - by Nocturne
    Code auto-generated by XCode seems to have the opening brace on the same line by default: @interface Controller : NSObject { } I'd like the opening brace on a line of its own, like this: @interface Controller : NSObject { } This applies in general to any method / class auto-generated by XCode. In XCode preferences I have "Indent solo { by" set to 0: How can I fix this?

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