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  • What is the difference between printf() and puts() in C?

    - by alex
    First up, I should let you know that I am learning C, so my apologies if this question seems stupid to a more advanced developer. I know you can print with printf() and puts(). I can also see that printf() allows you to embed variables inside and do some stuff like formatting. Is puts() merely a primitive version of printf(). Should it be used for every possible printf() without string interpolation? Thanks

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  • Python file - Want to change it to a function or a class

    - by curious2know
    Hello, I have a python program/file that I want to run repeatedly and calculate the averages of some variables over these runs. To do so, I thought it might be convenient to convert this program into a function or a class. One way I can think of is to add a def Main(): line at the top and indent every line manually within it. Is there an easier way? I am using pydev on eclipse. Thanks.

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  • Moving rails javascript to public while keeping ruby code?

    - by tesmar
    Hi guys, I have a project to move some JS code outside of rails into the public direcotry, but some of it has ruby code embedded, and depends on the values of the variables from the controllers to set some of its code. How can I move it out of the view and still maintain the same structure, or do I need to just rewrite the JS from scratch?

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  • Passing data to notification page

    - by FRKT
    I'm not sure what the best way of populating a notification page is. I've been using sessions to populate it with information, but this falls short if the user is blocking cookies. I've considered passing it in HTTP GET variables, but I'm unsure whether it's a good alternative since its length is limited by some browsers. Which method do you prefer?

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  • string concatenation in Groovy seems unconvenient

    - by Zombies
    My goal is to write this: println "this should be 3: ($1+2)" //this is invalid groovy, it won't run Yet this is valid in ruby. Is there a way I can put statements that will eval inside a string or must I use complete variables names? I am basically looking for the Ruby equivalent of: puts "this shoud be 3: #{1+2}" #this is valid ruby

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  • Why use one dimensional array instead of a two dimensional arrray?

    - by user3869145
    I was doing some work handling a lot of information and my partner told me that I was using too many matrices to manipulate the variables of the problem. The idea was to use one dimension arrays int a[] instead of the 2 dimensional arrays int b[][], to save memory and processing speed of the algorithm. How certain is that this change will accelerate the speed of execution or compilation of my code in c ++?

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  • C# (non-abstract) class to represent paths

    - by user289770
    I'm looking for a C# class that represents a file system path. I would like to use it (instead of strings) as the data type of variables and method arguments (top reasons: type safety, concat-proof, logical comparisons). System.IO.Path provides most of the functionality I want, but it is abstract. System.IO.FileInfo, as I understand, performs IO operations to do its job. I only want a wrapper for the path string. Thanks!

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  • Accessing class variable with string name?

    - by coure06
    I have a class like this $.fn.dimeBar = function(custom) { var var1 = 'test1'; var var2 = 'test2'; if(sometest){ //how can i access var1 or var2 here by using string name of variables //some thing like alert(this['var1']) -- should alert: 'test1' } }

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  • Variable Length Array

    - by corinaf
    Hello, I would like to know how a variable length array is managed (what extra variables or data structures are kept on the stack in order to have variable length arrays). Thanks a lot.

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  • Why thread specific data is required in pthread ?

    - by user504542
    Hi As i know, all the threads share memory location. For example a global variable changes in one thread will reflect in another thread. Since each thread has its own stack, the local variables that are created inside the thread is unique. In this case, why do we need to go for thread specific data mechanism?. Can't it be achieved by auto storage varibles inside the thread function ? Kindly clarify!!!. BR Rj

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  • With (or similar) statement in JQuery

    - by Salman A
    Very simple question: I want to optimize the following jQuery code with maximum readability, optimal performance and minimum fuss (fuss = declaring new variables etc): $(".addthis_toolbox").append('<a class="addthis_button_delicious"></a>'); $(".addthis_toolbox").append('<a class="addthis_button_facebook"></a>'); $(".addthis_toolbox").append('<a class="addthis_button_google"></a>'); $(".addthis_toolbox").append('<a class="addthis_button_reddit"></a>'); . . .

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  • Code obfuscator for php?

    - by jhonte
    Hey! Has anybody used a good obfuscator for PHP?, I've tried some but they dont work for very big projects. They can't handle variables that are included in one file and used in another, for instance. Or do you have any other tricks for stopping the spread of your great code? :)

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  • What does “@public” mean in Objective-C?

    - by Ty
    After reading a question on @private I understand how that works. However, since all variables default to @protected and you cannot really access a variable without defining an accessor, what exactly does @public do? When would you use it?

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  • How to use an excel data-set for a multi-line ggplot in R?

    - by user1299887
    I have a data set in excel that I am trying to create a multiple line plot with on R. The data set contains 7 food groups and the calories consumed daily associated to the groups. As well, there is that set of data over 38 years (from 1970-2008) and I am attempting to use this data set to create a multiple line plot on R. I have tried for hours on end but can not seem to get R to recognize the variables within the data set.

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  • php: avoiding __get in certain circumstances?

    - by user151841
    I have a class where I'm using __set. Because I don't want it to set just anything, I have an array of approved variables that it checks before it will actually set a class property. However, on construct, I want the __construct method to set several class properties, some of which are not in the approved list. So when construct happens, and I do $this->var = $value, I of course get my exception that I'm not allowed to set that variable. Can I get around this somehow?

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  • how do i use @var on a function variable?

    - by fayer
    i've got a variable $user that is of data type User (a class). i've got it in a class method so i can't just type: /** * @var User */ $user = Factory::getInstance('User'); because that will work only with class properties, not method variables like in this case. how could i tell netbeans that that variable is of data type User in a method? Thanks!

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