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  • Compile/use unrar C++ source for iphone app?

    - by greypoint
    Writing an app that will include the ability to decompress zip and rar files. I think I'm OK on how to handle the .zips but .rars seem a little more trouble. I noticed that rarlabs has source available but it's C++. Is there a way to compile, wrap or otherwise use this code within an iPhone app? Reference: http://www.rarlab.com/rar_add.htm Open to alternate suggestions on how to handle .rar files as well. I'm still pretty much a newbie so please explain in small words :)

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  • All possible permutations of a set of lists in Python

    - by Ian Davis
    In Python I have a list of n lists, each with a variable number of elements. How can I create a single list containing all the possible permutations: For example [ [ a, b, c], [d], [e, f] ] I want [ [a, d, e] , [a, d, f], [b, d, e], [b, d, f], [c, d, e], [c, d, f] ] Note I don't know n in advance. I thought itertools.product would be the right approach but it requires me to know the number of arguments in advance

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  • Objective C: Which is changed, property or ivar?

    - by Wilhelmsen
    Worrying about duplicates but can not seem to find and answer I can understand in any of the other posts, I just have to ask: When I have in my .h: @interface SecondViewController : UIViewController{ NSString *changeName; } @property (readwrite, retain) NSString *changeName; then in my .m @synthesize changeName; -(IBAction)changeButton:(id)sender{ changeName = @"changed"; } Is it the synthesized property or the instance variable that get changed when I press "changeButton" ?

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  • Gnuplot python with 2 list

    - by devil night
    I've a python script that gives me 2 lists and another who is the reference(the time). How can I create a graphic with the representation of my first list by the time. And same question for the second list. I need them on the same graphic. list1 [12, 15, 17, 19] list2 [34, 78, 54, 67] list3 [10, 20, 30, 40] (time in minutes) How can I create a graphic in png format with these lists? Thanks

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  • Unexpected output from Bubblesort program with MSVC vs TCC

    - by Sujith S Pillai
    One of my friends sent this code to me, saying it doesn't work as expected: #include<stdio.h> void main() { int a [10] ={23, 100, 20, 30, 25, 45, 40, 55, 43, 42}; int sizeOfInput = sizeof(a)/sizeof(int); int b, outer, inner, c; printf("Size is : %d \n", sizeOfInput); printf("Values before bubble sort are : \n"); for ( b = 0; b &lt; sizeOfInput; b++) printf("%d\n", a[b]); printf("End of values before bubble sort... \n"); for ( outer = sizeOfInput; outer &gt; 0; outer-- ) { for ( inner = 0 ; inner &lt; outer ; inner++) { printf ( "Comparing positions: %d and %d\n",inner,inner+1); if ( a[inner] &gt; a[inner + 1] ) { int tmp = a[inner]; a[inner] = a [inner+1]; a[inner+1] = tmp; } } printf ( "Bubble sort total array size after inner loop is %d :\n",sizeOfInput); printf ( "Bubble sort sizeOfInput after inner loop is %d :\n",sizeOfInput); } printf ( "Bubble sort total array size at the end is %d :\n",sizeOfInput); for ( c = 0 ; c &lt; sizeOfInput; c++) printf("Element: %d\n", a[c]); } I am using Micosoft Visual Studio Command Line Tool for compiling this on a Windows XP machine. cl /EHsc bubblesort01.c My friend gets the correct output on a dinosaur machine (code is compiled using TCC there). My output is unexpected. The array mysteriously grows in size, in between. If you change the code so that the variable sizeOfInput is changed to sizeOfInputt, it gives the expected results! A search done at Microsoft Visual C++ Developer Center doesn't give any results for "sizeOfInput". I am not a C/C++ expert, and am curious to find out why this happens - any C/C++ experts who can "shed some light" on this? Unrelated note: I seriously thought of rewriting the whole code to use quicksort or merge sort before posting it here. But, after all, it is not Stooge sort... Edit: I know the code is not correct (it reads beyond the last element), but I am curious why the variable name makes a difference.

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  • How to manage Constants in Application

    - by changed
    what is the best way to use Application Constants ? What i usually do is create a separate table in database of constants and reference them as foreign key in other table. In Java i use enum. But how to keep a single place of authority for constants in application and what are the different ways i can do that(like table or enum).

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  • how to get ip address of my computer

    - by asthagoyal
    hello i want to get ipaddress of my computer in variable ip thru this code but it assign nothing in ip char comm[100]; int s=0; char ip[100]; sprintf(comm,"export ip=`/sbin/ifconfig eth0 | grep 'inet addr:' | cut -d: -f2 | awk '{ print $1}'`"); s=system(comm); printf("\n ip is %s",ip);

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  • Make emacs autocomplete Ruby methods

    - by Mad Wombat
    Is there a way to make emacs pull autocompletions of ruby methods the way Eclipse and NetBeans do? That is if I type File. and press CTRL-space in Eclipse I will get a list of File methods. Same with variables. I have installed autocomplete plugin, ruby-mode, rinari and cedet, but so far it will complete local variable and method names, but will not native ones.

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  • Processing image data in java me

    - by Trimack
    Hi, I want to process raw data from a picture taken in java me with byte[] snap = videoControl.getSnapshot(encoding); My question is, whether I should try working already with snap or should I first create the image from this array Image im = Image.createImage(snap, 0, snap.length); and then work with that? Or is there some better documentation of both methods, i.e. getSnapshot and createImage than the Java API reference?

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  • auto submit form from command line

    - by combatwombat
    I have a form page in PHP that reads a DBF, and conditionally converts it into a MySQL - extracting the data from an old, but still production accounting app. The conversion should be able to be actioned without user intervention, ie scripted from the web-host's command line on a cron job. How can I get PHP to submit the form automatically when receiving variables at command line, like for instance a specific post variable? Every auto-submit I've found so far relied upon javascript, which would be useless at PHP command line.

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  • Passing JSP parameter to javascript won't work in IE8!

    - by Ronen
    Could really use with some help here... I've got a servlet that generates an XML string (relatively long) which I then pass to a javascript variable in a forwarded jsp file: $(document).ready(function() { ... var itXML = <% out.print((String)request.getAttribute("xml"));% ; ... } This seems to work just fine in Firefox but when I run the same project on IE8 I get a syntax error for this line. Any Ideas? Thanks!

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  • How to drop a primary key using ActiveRecord migrations

    - by knoopx
    Due to a mistake I forgot to add :id => false to a has_many :trough table creation migration. Now I reverted the association back to a has_and_belongs_to_many and ActiveRecord throws an exception complaining about the presence of the primary key. I couldn't find any reference on the ActiveRecord documentation so, do you know if there is any standard, clean way of doing it?

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  • which is the most accurate way to check variables type javascript

    - by mck89
    Hi, i need to check the type of a variable in javascript, i know 3 ways to do it: instanceof operator: if(a instanceof Function) typeof operator: if(typeof a=="function" toString method (jQuery uses this): Object.prototype.toString.call(a) == "[object Function]" Which is the most accurate way to do type checking beetween these solutions? and why? Please don't tell me that the last solution is better only because jQuery uses that.

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  • Evenly distibuted scatterViewItems that dont overlap

    - by Christo Fur
    Hi I have an app that creates a variable number of ScatterviewItems based on which tagged object is placed on the surface table. The ScatterViewItems are added programatically to the ScatterView based on info looked up in a DB The Scatterview does a good job of displaying this info However, I would like them to be evenly distributed across the table and not have any items overlapping Any ideas how to do that?

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  • Facebooker2 template issue

    - by Srini
    Hi, When i include fb_connect_async_js javascript helper it is throwing an error , Facebooker 2 don't have action view template. Could you please tell me how handle this situation . undefined local variable or method `fb_connect_async_js' for ActionView::Base Thanks, Srini

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  • Where is the libray for 'dlsym'

    - by hap497
    Hi, I am getting this linker error: system/core/libacc/tests/main.cpp:42: error: undefined reference to 'dlsym' Can you please tell me where is the library on ubuntu 9.10 which contains the library for 'dlsym'? Thank you.

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  • Specify debug/release build in qt

    - by Royi Freifeld
    I would like Qt Creator to build the project according to the type I specify in the little computer button. Using: CONFIG(debug, debug|release) { DESTDIR = Debug OBJECTS_DIR = Debug/.obj MOC_DIR = Debug/.moc RCC_DIR = Debug/.rcc UI_DIR = Debug/.ui } CONFIG(release, debug|release) { DESTDIR = Release OBJECTS_DIR = Release/.obj MOC_DIR = Release/.moc RCC_DIR = Release/.rcc UI_DIR = Release/.ui } Or, using the answer from here, makes qmake chose the last time a variable was defined. How do I set it? Thnx P.S I don't know if it has something to do with my problem, but I'm using Ubuntu and not Windows

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