Search Results

Search found 18319 results on 733 pages for 'array push'.

Page 555/733 | < Previous Page | 551 552 553 554 555 556 557 558 559 560 561 562  | Next Page >

  • What is the underlying reason for not being able to put arrays of pointers in unsafe structs in C#?

    - by cons
    If one could put an array of pointers to child structs inside unsafe structs in C# like one could in C, constructing complex data structures without the overhead of having one object per node would be a lot easier and less of a time sink, as well as syntactically cleaner and much more readable. Is there a deep architectural reason why fixed arrays inside unsafe structs are only allowed to be composed of "value types" and not pointers? I assume only having explicitly named pointers inside structs must be a deliberate decision to weaken the language, but I can't find any documentation about why this is so, or the reasoning for not allowing pointer arrays inside structs, since I would assume the garbage collector shouldn't care what is going on in structs marked as unsafe. Digital Mars' D handles structs and pointers elegantly in comparison, and I'm missing not being able to rapidly develop succinct data structures; by making references abstract in C# a lot of power seems to have been removed from the language, even though pointers are still there at least in a marketing sense. Maybe I'm wrong to expect languages to become more powerful at representing complex data structures efficiently over time.

    Read the article

  • Know if a variable is a native object in javascript

    - by mck89
    Hi, is there a way to know if a variable passed into a function is a native object? I mean, i have a function that requires only native objects as arguments, for every other type of variable it throws an error. So: func(Array); //works func(String); //works func(Date); //works func(Object); //works ... func([]); //Throwr error func({}); //Throws error I want to know if there's a way to distinguish between native objects and everything else.

    Read the article

  • Problem with numbers

    - by StolePopov
    I am given a number N, and i must add some numbers from the array V so that they wil be equal. V is consisting of numbers that are all powers of 3: N = 17 S = 0 V = 1 3 9 27 81 .. I should add numbers from V to N and S in order to make them equal. The solution to the example above is : 17 + 1 + 9 = 27, 27, 1 and 9 are taken from V, a number from V can be taken only once, and when taken it's removed from V. I tried sorting V and then adding the biggest numbers from V to S until S has reached N, but it fails on some tests when it's like: N = 7 S = 0 V = 1 3 9 27 So the solution will be: 7 + 3 = 9 + 1 In examples like this i need to add numbers both to N and S, and also select them so they become equal. Any idea of solving this ? Thanks.

    Read the article

  • Assign a Custom Global Pseudo Variable in Code Igniter

    - by Fábio Antunes
    Hello As you probably all know Code Igniter can assign pseudo variables using the Parser library, but you also know that if we want to assign a Pseudo Variable to use it in a View, we have to do it in every do it in every controller that loads those views with the pseudo variables. I would like to know if Code Igniter 1.7.2 has some way that i can assign a Global Pseudo variable (like the pseudo variables from the Benchmarking Class). The pseudo variables i want, would have simple data mostly returned from the $config array in the config.php file. If some could help me with that. Regards.

    Read the article

  • Recording/Reading C doubles in the IEEE 754 interchange format

    - by rampion
    So I'm serializing a C data structure for cross-platform use, and I want to make sure I'm recording my floating point numbers in a cross-platform manner. I had been planning on just doing char * pos; /*...*/ *((double*) pos) = dataStructureInstance->fieldWithOfTypeDouble; pos += sizeof(double); But I wasn't sure that the bytes would be recorded in the char * array in the IEEE 754 interchange format. I've been bitten by cross-platform issues before (endian-ness and whatnot). Is there anything I need to do to a double to get the bytes in interchange format?

    Read the article

  • F# working with DataReader

    - by mamu
    let getBytesData x = let len = reader.GetBytes(1, int64 0, null, 0, 0); // Create a buffer to hold the bytes, and then // read the bytes from the DataTableReader. let buffer : byte array = [||] reader.GetBytes(1, int64 0, buffer, 0, int32 len) |> ignore buffer let retVal = List [ while reader.Read() do yield (reader.GetString(0), getBytesData reader, reader.GetDateTime(2)) ] I have above code to read bytes[] from datareader. getBytesData function takes reader and returns bytes[] from reader. everything works fine but it getBytesData function is working very non-functional way. Is there any way i can optimize in F#? Sorry for kind of question, but i have started a new project on F# to squeeze all juice out of it, so trying to get each line most optimal way

    Read the article

  • Need to skip newline char (\n) from input file

    - by igor
    I am reading in a file into an array. It is reading each char, the problem arises in that it also reads a newline in the text file. This is a sudoku board, here is my code for reading in the char: bool loadBoard(Square board[BOARD_SIZE][BOARD_SIZE]) { ifstream ins; if(openFile(ins)){ char c; while(!ins.eof()){ for (int index1 = 0; index1 < BOARD_SIZE; index1++) for (int index2 = 0; index2 < BOARD_SIZE; index2++){ c=ins.get(); if(isdigit(c)){ board[index1][index2].number=(int)(c-'0'); board[index1][index2].permanent=true; } } } return true;} return false; } like i said, it reads the file, displays on screen, just not in correct order when it encounters the \n

    Read the article

  • Rails, JSON Object, jQuery, Auto-Complete

    - by Michael Waxman
    I'm using this jquery autocomplete plug-in with rails: http://docs.jquery.com/Plugins/Autocomplete I can't figure out how to format my results, both in my Rails controller and in my javascript file. I have something like this in my controller... @query = params[:q].downcase @json = User.all(:login => /^#{@query}/) respond_to do |format| format.js { render :json => @json.to_json(:only => "login"), :layout => false } end And then this in my script.js file... $("#form").autocomplete('/url', { width: 320, dataType: 'json', highlight: false, scroll: true, scrollHeight: 300 }) But I can't figure out how to parse the data, so my autocomplete just gets a raw array of all my results at once. How do I process the JSON in the script.js file and/or in my controller for it to work?

    Read the article

  • Zend_Form -> Nicely change setRequired() validate message

    - by dittonamed
    Say I create a text element like this: $firstName = new Zend_Form_Element_Text('firstName'); $firstName->setRequired(true); Whats the best way to change the default error message from: Value is empty, but a non-empty value is required to a custom message? I read somewhere that to replace the message, just use addValidator(..., instead (NO setRequired), like this: $firstName = new Zend_Form_Element_Text('firstName'); $firstName->addValidator('NotEmpty', false, array('messages'=>'Cannot be empty')); but in my testing, this doesn't work - it doesn't validate at all - it will pass with an empty text field. Using both (addValidator('NotEmp.. + setRequired(true)) at the same time doesn't work either - it double validates, giving two error messages. Any ideas? Thanks!

    Read the article

  • Unbox an Object to Its Type

    - by Ngu Soon Hui
    Hello, is there anyway to unbox an object to its real type? Basically I am given an ArrayList, the array list are actually a list of int or double, or maybe other types ( it can be either, but it is either all int or double, no mix). Now, I will have to return a List<double> or List<int> or other list, depending on what is the real type. public List<T> ConvertToList<T>(ArrayList arr) { var list1 = new List<T>(); foreach(var obj in arr) { // how to do the conversion? var objT = ?? list1.Add(objT); } return list1; } Any idea?

    Read the article

  • Explore a COM Object in PHP

    - by shaiss
    What would be the proper way to explode a COM object for debugging? I have a 3rd party function that returns a multilevel object. The documentation is non existant, so I'd like to be able to echo everything out of the object or debug it in Komodo IDE. Komodo just says Object and nothing else. Maybe convert to array? I know some of the existing options such as $com->Status, but there are more variables returned that I'd like to know what they are.

    Read the article

  • Using numpy.apply

    - by andylei
    What's wrong with this snippet of code? import numpy as np from scipy import stats d = np.arange(10.0) cutoffs = [stats.scoreatpercentile(d, pct) for pct in range(0, 100, 20)] f = lambda x: np.sum(x > cutoffs) fv = np.vectorize(f) # why don't these two lines output the same values? [f(x) for x in d] # => [0, 1, 2, 2, 3, 3, 4, 4, 5, 5] fv(d) # => array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0]) Any ideas?

    Read the article

  • PHP replace backslash

    - by Skyfe
    Hi there, Been struggling with replacing a backslash by another symbol such as '.-.' just to indicate the position of backslashes as I could not send a string such as 'C\xampp\etc.' through url as GET variable so I thought I'd first replace the backslashes in that string by another symbol, then send through url, and then replace them back to backslashes in the PHP file that handles it. Though would there be a better way to send such strings through url? Because when I try a script such as: $tmp_name = preg_replace("\", ".-.", $_FILES['uploadfile']['tmp_name']); It turns out into a php error as \ is also used as delimiter.. Could anyone help me out on this? Thanks in advanced! Btw, if I'd be able to send a full array through url, this whole problem would be solved, but I don't think it's possible?

    Read the article

  • Is it Hard to Write a Blog?

    - by Joe Mayo
    Responding to a tweet I received, asking if I found it hard to write a blog and keep it interesting. This is one of the situations where a 140 character response doesn’t do a question justice. There’s a lot to think about between the subjects of writing, subject matter, and entertainment.  Here’s my take on each of these three topics: There’s all types of writing you can do with various degrees of difficulty. If you’re writing a book and you have a gazillion editors bleeding over your every utterance, then the task becomes harder because you’re second-guessing yourself, not knowing whose opinion will be violated. However, if you’re communicating in a public forum, not too many people care about the grammar as much as whether what you have to say is correct.  For a blog, I would say it’s somewhere in-between.  Right now, I’m using Windows Live Writer, which gives me a few advantages to just typing into the blog editor, such as spelling correction and the ability to save my work and resume later.  Overall, writing is one of those things that you just need to get used to.  It’s an essential skill for developers because you need to document your work, depending on what your definition of proper documentation is, and communicate with other developers via various communications mediums. Not begin good (or not thinking that you’re good) shouldn’t hold you back.  Like most things in life, practice will improve your skill.  So, push away that inner voice that keeps you from moving forward and just do it. A good grasp on the subject matter you’re writing about helps.  However, don’t let a lack of knowledge stop you from writing about something. I recall reading something a while back by a developer who didn’t know a technology but wrote about their experience in learning it. They ended up learning more by expressing their thoughts in writing. If you look around out many blogs today, there are many items written by developers learning what they’re writing about.  So, whether you are sure or unsure, you can still write – just be honest with yourself and your readers about what you’re writing. Also, don’t be afraid to have a different opinion or worry if someone will disagree.  I’ll freely admit that it took a while for me to become accustomed to being criticized. Take the good with the bad and use the bad to make yourself better. Guaranteed, someone will disagree with one or more parts of what I’ve written here or think they have a better approach. No problem, more power to them, and whatever constructive comments they have will be a benefit to me in the future; Otherwise, to h*ll with them. :)  Every time you get knocked down, get right back up, dust the dirt off your backside, and keep moving forward.  You’ll learn in time how to align a subject with your own presentation of the material. Entertainment could be hard or could be natural, depending on the personality of yourself and your target audience. It’s even more challenging because you can say something you think is funny and someone will be offended. In fact, there are a lot of things that you shouldn’t say in the name of a joke, but I won’t mention any of them here for want of not offending anyone. Of course, I probably offended someone by saying that and there is probably an organization somewhere in the world out to get me now. I’m probably not the best person to be giving you advice on entertaining an audience.  I mean, every time I try to tell a joke on Twitter 10 people unfriend me. Okay, maybe 15, but you get my point. One thing you might be interested in knowing is that it’s not too hard for one technical person to entertain other technical people, especially when the subject is of interest.  It’s the excitement in each sentence and passion in each paragraph that will keep another developer entertained and interested in what you have to say. Not everyone will like what you’ve written, but the important part is to find your own voice and it’s likely that there is one person in some corner of the world that likes what you have to say, even if it’s your mom and she doesn’t understand a single word you write. :)   If I could leave you with one final thought; Just do it and don’t let anyone or anything hold you back.   Joe

    Read the article

  • Issue converting Sitecore Item[] using ToList<T>

    - by philba888
    Working with Sitecore and Linq extensions. I am trying to convert to from an item array to the list using the following piece of code: Item variationsFolder = masterDB.SelectSingleItem(VariationsFolderID.ToString()); List<Item> variationList = variationsFolder.GetChildren().ToList<Item>(); However I keep getting this error whenever I try to build: 'Sitecore.Collections.ChildList' does not contain a definition for 'ToList' and the best extension method overload 'System.Linq.Enumerable.ToList<TSource>(System.Collections.Generic.IEnumerable<TSource>)' has some invalid arguments I have the following usings: using System.Linq; using System.Xml.Linq; Am referencing: System.Core I've just copied this code from another location, so it should work fine, can only think that there is something simple (like a reference or something that I am missing).

    Read the article

  • Strange PHP reference bug

    - by Roland Soós
    Hello, I have a really strange bug with my PHP code. I have a recursive code which build up a menu tree with object and one of my customers server can't make it work. Contructor: function Menu(&$menus, &$keys , &$parent, &$menu){ ... if($keys === NULL){ $keys = array_keys($menus); } ... for($x = 0; $x < count($keys); $x++) { var_dump($keys); $menu = $menus[$keys[$x]]; var_dump($keys); if($this->id == $menu->pid){ $keys[$x] = NULL; $this->submenus[] = new Menu($menus, $keys, $this, $menu); } } First var_dump give me back the array, the second give back the first element of $menus. Do you have any idea what causes this? PHP version 5.2.3

    Read the article

  • Sinatra Gem install error

    - by lakshmanan
    I have been trying to install sinatra in a macbook running leopard system, and I am not able to do it. I get the following error. MacBook:rubygems-1.3.7 lakshmanan$ gem install sinatra WARNING: RubyGems 1.2+ index not found for: http://rubygems.org/ RubyGems will revert to legacy indexes degrading performance. Bulk updating Gem source index for: http://rubygems.org/ ERROR: While executing gem ... (NoMethodError) undefined method `gems' for #<Array:0x101901008> Please help. I reinstalled gems also. Still I get the same error.

    Read the article

  • Using core plot for iPhone, drawing date on x axis

    - by xmax
    I have available an array of dictionary that contains NSDate and NSNumber values. I wanted to plot date on X axis. for plotting I need to supply xRanges to plot with some decimal values.I don't understand how can i supply NSdate values to xRange (low and length). And what should be there in this method: -(NSNumber *)numberForPlot:(CPPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)index I mean how my date value will be returned as NSNumber..? I think i should use some interval over there.but what should be the exact conversion..? can any one explain me what are the exact requirement to plot the date on xAxis..? I am plotting my plot in half of the view.

    Read the article

  • Next month, same day in PHP

    - by Guillermo
    I got a last time (and urgent) requeriment of an "event" that needs to be scheduled the same day of every month. Say of you set the start date on the 1st May you should get the next events on the 1st of Jun, 1 Jul etc. The problem comes with a start date on the 31st (the next ones could be 30 or 28 depending on the month) Considering that there are months with different numbers of days (28,30,31) depending on the month itself and the year... what would ba an easy way to setup this? Consider the following (and flawed) nextmonth function: $events = array() function nextmonth($date) { return $date+(60*60*24*30); } $curr = $start; while($curr < $end) { $events[ = $curr; $curr = nextmonth($curr); } Edited to add: The problem for me is, simply enought, is to solve what the number of days of any given month is and thus get the next corresponding date..

    Read the article

  • C# File.ReadAllLines not breaking on line feeds

    - by David Dickerson
    Hello, I have an application that I am building that needs to modify a configuration file. My problem is that I am not able to read the file in line by line. I keep geeting the the entire file as a single string. string ConfigTemplate = AEBuildsSPFolderName + "\Template_BuildReleaseScript.Config"; string[] fileSourceLines = File.ReadAllLines(ConfigTemplate, Encoding.Default); --Returns the entire file contents into the first array element. using (StreamReader reader = new StreamReader(ConfigTemplate)) { string line; while ((line = reader.ReadLine()) != null) --Returns the entire file contents into the first line read. Any idea of what I am doing wrong? Thanks, david

    Read the article

  • Cocoa NSOutlineView bug - [NSCFTimer copyWithZone:]: unrecognized selector sent to instance

    - by Circle
    I'm using an NSOutlineView with the function - (BOOL)outlineView:(NSOutlineView *)outlineView isGroupItem:(id)item defined so it gives the group row GUI look. When I add a root item, it works fine. When I add an item to root's child array and expand it, it works fine. If I contract the item though, the following error is logged: [NSCFTimer copyWithZone:]: unrecognized selector sent to instance I also get an EXC_BAD_ACCESS error if the app window is deactivated by switching to another app. I used the debugger to try to find where I might have made an error in one of my functions, but the stack trace only shows functions I did not create (RunCurrentEventLoopInMode, CFRunLoopRunSpecific, handleWindowNeedsDisplay, etc.) Does anyone have any idea where my error(s) might be?

    Read the article

  • Understanding this Pascal-FC threaded code

    - by dmindreader
    **Program Parcial2; type buffer = channel of integer; var buffers : array [1..2] of buffer; val:integer; process sleeper (id:integer); var i : integer; begin for i:=1 to 10 do begin sleep (random(10*id)); **buffers (id):any;** end; end; process troll; begin **buffers[1]: random(10);** end;** What are buffers(id):any and buffers[1]:random(10) doing?

    Read the article

  • Assign a custom global pseudo variable in Code Igniter like {elapsed_time}

    - by Fábio Antunes
    Hello As you probably all know Code Igniter can assign pseudo variables using the Parser library, but you also know that if we want to assign a Pseudo Variable to use it in a View, we have to do it in every controller that loads those views with the pseudo variables. I would like to know if Code Igniter 1.7.2 has some way that i can assign a Global Pseudo variable (like the pseudo variables from the Benchmarking Class). The pseudo variables i want, would have simple data mostly returned from the $config array in the config.php file. If some could help me with that. Regards.

    Read the article

  • Wordpress "Home" link

    - by Johann
    Hi all, I'm working on a Sandbox based Wordpress theme and I would like to add a home link as a first item in the navigation. I know I should change the function in "sandbox_globalnav" in the functions.php file, which is: // Produces a list of pages in the header without whitespace function sandbox_globalnav() { if ( $menu = str_replace( array( "\r", "\n", "\t" ), '', wp_list_pages('title_li=&sort_column=menu_order&echo=0') ) ) $menu = '<ul>' . $menu . '</ul>'; $menu = '<div id="menu">' . $menu . "</div>\n"; echo apply_filters( 'globalnav_menu', $menu ); // Filter to override default globalnav: globalnav_menu } However, my PHP skills are really basic and I'm not sure where I should override this. Thanks!

    Read the article

  • how to retrieve part of a string in java?

    - by mithun1538
    Hello everyone, I am designing a chat applet. In this, a user will append his name to the beginning of the message that he sends to the other user. In the window of other user, I want to retrieve the appended user name from that string. How do I do that? The message sent by the user is as follows : final_msg = user_name + ": " + user_message Hence I want to know how to retrieve the user_name string only. Is there a function that can retrieve a substring upto the first ":"? I dont want to use final_msg.split(":"), because there is a possiblity that the user_message contains ":", which will then give me an array of strings.

    Read the article

< Previous Page | 551 552 553 554 555 556 557 558 559 560 561 562  | Next Page >