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  • C array assignment and indexing with similar variable.

    - by Todd R.
    Hello! I apologize if this has been posted before. Compiling under two separate compilers, BCC 5.5 and LCC, yields 0 and 1. #include <stdio.h> int main(void) { int i = 0, array[2] = {0, 0}; array[i] = ++i; printf("%d\n", array[1]); } Am I to assume not all compilers evaluate expressions within an array from right to left?

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  • php array filter

    - by benmsia
    Hi i would like to filter array in php. for example $a = ARRAY('a', 'b', 'c', 'd', 'e'); $b = ARRAY('c', 'd'); $a will be filtered by values in array $b and result is ['a', 'b', 'e'] may I know how to do it in php? Thank you.

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  • JNI values assignment to array

    - by shoaib
    i have this array of jvalue type and i want to assign string values ...im on unity trying to pass parameters to my java funtion using JNI library jvalue[] myArray = new jvalue[2]; myArray[0]="abcd"; myArray[1]="khan"; gui.text= AndroidJNI.CallStaticStringMethod(obj_Activity, startAdsMethod, myArray); could some 1 plz guide how to achieve the code above im getting the error whilst assigning values to the array because the array is not of string type my function takes string parameters and jni wants them in form of array thanks any help is highly appreciated

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  • Sum up values in an array list in java

    - by user1449997
    Hello to all tired and frustrated programmers, There is a problem I can't solve: In my array list there are Object arrays with the length of three and always on the last cell of the array there is a double. I need a loop which goes through the array list and sums up all doubles. (I need also some other thing from the arrays so a general idea how to loop through an array list would be perfect :-)) Any ideas? Thanks for your help, Greetings Demian

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  • Resources needed: Sort 2D array "graphically"

    - by aw
    I have a 2D array 1 2 3 4 5 6 7 8 9 and want to sort it like this Snake 1 2 3 8 9 4 7 6 5 Snake (different) 1 2 3 6 5 4 7 8 9 Rotated 1 4 7 2 5 8 3 6 9 Wipe (diagonal) 1 3 6 2 5 8 4 7 9 Well, you got it, all kinds of sorting. Searching the interweb for hours now. Any resources (specific language or pseudo code) on that greatly appreciated...

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  • Segment string into array, regex?

    - by Hanpan
    I have a string which looks like this: "[segment1][segment2][segment2]" What I'd like is to be able to split the string into an array, so I'd end up with: Array[0] = "segment1", Array[1] = "segment2", Array[2] = "segment3" I've tried using the string split function, but it doesn't seem to do exactly what I want. I was wondering if anyone has some regex which might help me out? Thanks in advance

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  • Is there any algorithm for determining 3d position in such case? (images below)

    - by Ole Jak
    So first of all I have such image (and ofcourse I have all points coordinates in 2d so I can regenerate lines and check where they cross each other) But hey, I have another Image of same lines (I know thay are same) and new coords of my points like on this image So... now Having points (coords) on first image, How can I determin plane rotation and Z depth on second image (asuming first one's center was in point (0,0,0) with no rotation)?

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  • Using a array variable in a foreach loop

    - by Jess McKenzie
    I am having an issue trying to work out how to use a function variable in a foreach loop so that I can do the following but its not working. $var = array(7) { [0]=> array(3) { ["listingId"]=> int(532712629) } [1]=> array(3) { ["listingId"]=> int(532712202) } Works but not right: foreach($var as $varr) { var_dump($varr['id']); { Goal - Having the array variable as the foreach value foreach($var['id'] as $item) { if($item === $foo) { } }

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  • How do I create an Array into another Array?

    - by Timnkd
    I have the following JavaScript Array: var jsonArray = { 'homes' : [ { "home_id":"203", "price":"925", "sqft":"1100", "num_of_beds":"2", "num_of_baths":"2.0", }, { "home_id":"59", "price":"1425", "sqft":"1900", "num_of_beds":"4", "num_of_baths":"2.5", }, // ... (more homes) ... ]} I want to convert this to the following type of Array (pseudo code): var newArray = new Array(); newArray.push(home_id's); How can I do that? Notice how the newArray only has home_ids from the big jsonArray array.

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  • how to store a 2D game world in mysql

    - by monthon1
    I am making a 2D game in javascript/ajax, that will be using data stored in mysql database. Every user have got his own "area" made of small squares that can have some values. But I have no idea, how to store values of each square in mysql, when each user can have area with different width or height. Do you have some idea?

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  • Resizing a rectangular array

    - by devdept
    Does a smarter way than the following exist to resize a rectangular array? double[,] temp = new double[newSize, originalSecondDimension]; Array.Copy(original, temp, original.Length); I was concerned about duplicating a huge array and the memory necessary to do it. What does the Array.Resize() do internally? Thanks, Alberto

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  • C++: sizeof for array length

    - by Rosarch
    Let's say I have a macro called LengthOf(array): sizeof array / sizeof array[0] When I make a new array of size 23, shouldn't I get 23 back for LengthOf? WCHAR* str = new WCHAR[23]; str[22] = '\0'; size_t len = LengthOf(str); // len == 4 Why does len == 4? UPDATE: I made a typo, it's a WCHAR*, not a WCHAR**.

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  • Good ways to map a 2D side shooter (somewhat like liero, or soldat)

    - by Blaze
    I'm wondering what way would be best to render a 2D map for a shooter (these will be static maps) similar to Soldat. Multiple options I've considered are a tile based map (stored in txt files), or just creating different classes for the different terrains I plan to use and creating a data structure to read/store them in a file. (I want to also be able to include things like jumping/running on walls, sliding down walls/slopes ect) I feel like there must be a better way than either of these, but haven't been able to find definitive information :/ Thanks :)

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  • how do I convert a php array of names and coordinates to a javascript array for google map points?

    - by princyp
    I have a php array that has a bunch of data that I need but specifically I need just the name and longitude and latitude from each item in the array so that I can display points on a google map. The google map array needs to look like this in the end var points = [ ['test name', 37.331689, -122.030731, 4] ['test name 2', 37.331689, -122.030731, 4] ]; What is the best way to put my php data into a js array?

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  • How to fill byte array with junk? C#

    - by flyout
    I am using this: byte[] buffer = new byte[10240]; As I understand this initialize the buffer array of 10kb filled with 0s. Whats the fastest way to fill this array (or initialize it) with junk data everytime? I need to use that array like 5000 times and fill it everytime with different junk data, thats why I am looking for a fast method to do it. The array size will also have to change everytime.

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  • Direct 2D gnuplot PNG animation?

    - by Xepoch
    Can anyone please confirm that yes/no Gnuplot 4.5 (on CVS) can output 2D animated PNG files? I have numerous datasets but one line that I'd like to show iteratively in 3 different places in my graph. Can this be done directly from gnuplot or is this something that would need to be animated externally from multiple frames?

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  • bash split text into limited character buckets (array member)

    - by soField
    i have text such as http://pastebin.com/H8zTbG54 we can say this text is set of rules splitted by "OR" at the end of lines i need to put set of lines(rules) into buckets (bash array members) but i have character limit for each array member which is 1024 so each array member should contain set of rules but character count for each array member can not exceed 1024 can anybody help me to do that solaris 10

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  • Getting an array back from php using $.ajax

    - by Wurlitzer
    A php script is giving this array (which has been passed through json_encode()) [{name:"a1",path:"b1"},{name:"a2",path:"b2"}] I use the following function to retrieve the array to jquery: $.ajax({ type: "POST", url: "functions.php", data: "action=" + something, cache: false, success: function(response) { alert(response); } }); The problem is I get the array back as a string: (new String("[{name:"a1",path:"b1"},{name:"a2",path:"b2"}}]")) How can I get it to be a javascript array? Help would be much appreciated.

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  • Generate navigation from a multi-dimensional array

    - by rg88
    The question: How do I generate navigation, allowing for applying different classes to different sub-items, from a multi-dimensional array? Here is how I was doing it before I had any need for multi-level navigation: Home Pics About and was generated by calling nav(): function nav(){ $links = array( "Home" => "home.php", "Pics" => "pics.php", "About" => "about.php" ); $base = basename($_SERVER['PHP_SELF']); foreach($nav as $k => $v){ echo buildLinks($k, $v, $base); } } Here is buildLinks(): function buildLinks($name, $page, $selected){ if($selected == $page){ $theLink = "<li class=\"selected\"><a href=\"$page\">$name</a></li>\n"; } else { $thelink = "<li><a href=\"$page\">$name</a></li>\n"; } return $thelink; } My question, again: how would I achieve the following nav (and notice that the visible sub navigation elements are only present when on that specific page): Home something1 something2 Pics About and... Home Pics people places About What I've tried From looking at it it would seem that some iterator in the SPL would be a good fit for this but I'm not sure how to approach this. I have played around with RecursiveIteratorIterator but I'm not sure how to apply a different style to only the sub menu items and also how to only show these items if you are on the correct page. I built this array to test with but don't know how to work with the submenu1 items individually: $nav = array( array( "Home" => "home.php", "submenu1" => array( "something1"=>"something1.php", "something2" => "something2.php") ), array("Pics" => "pics.php"), array("About" => "about.php") ); The following will print out the lot in order but how do I apply, say a class name to the submenu1 items or only show them when the person is on, say, the "Home" page? $iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($nav)); foreach($iterator as $key=>$value) { echo $key.' -- '.$value.'<br />'; }

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  • how to swap array-elements to transfer the array from a column-like into a row-like representation

    - by Christian Ammer
    For example: the array a1, a2, a3, b1, b2, b3, c1, c2, c3, d1, d2, d3 represents following table a1, b1, c1, d1 a2, b2, c2, d2 a3, b3, c3, d3 now i like to bring the array into following form a1, b1, c1, d1, a2, b2, c2, d2, a3, b3, c3, d3 Does an algorithm exist, which takes the array (from the first form) and the dimensions of the table as input arguments and which transfers the array into the second form? I thougt of an algorithm which doesn't need to allocate additional memory, instead i think it should be possible to do the job with element-swap operations.

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