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  • why can't I call .update on a MessageDigest instance

    - by Arthur Ulfeldt
    when i run this from the repl: (def md (MessageDigest/getInstance "SHA-1")) (. md update (into-array [(byte 1) (byte 2) (byte 3)])) I get: No matching method found: update for class java.security.MessageDigest$Delegate the Java 6 docs for MessageDigest show: update(byte[] input) Updates the digest using the specified array of bytes. and the class of (class (into-array [(byte 1) (byte 2) (byte 3)])) is [Ljava.lang.Byte; Am I missing something in the definition of update? Not creating the class I think I am? Not passing it the type I think I am?

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  • How to find the formula of best case and worst case of my algorithm?

    - by rachel7660
    I was given a task. Write an algorithm so that, the input of 2 lists of data, will have at least one in common. So, this is my algorithm: (I write the code in php) $arrayA = array('5', '6', '1', '2', '7'); $arrayB = array('9', '2', '1', '8', '3'); $arrayC = array(); foreach($arrayA as $val){ if(in_array($val, $arrayB)){ array_push($arrayC, $val); } } Thats my own algo, not sure if its a good one. So, based on my algorithm, how to find the formula of best case and worst case (big O)? Note: Please do let me know, if my algorithm is wrong. My goal is " input of 2 lists of data, will have at least one in common."

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  • Wordpress Custom Query

    - by InnateDev
    I have posts that use a custom field for start date and end date. Query_posts returns an array of posts that exist in the category I'm filtering. How do I query posts using this custom field that has date i.e. 03/11/2010 and not the full array. Pagination works on the full array so it returns all posts. I can use an if else to only show the posts newer that today, then pagination doesn't work. Would I have to build a custom mysql query?

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  • gsub! Is modifying unspecified strings

    - by user335729
    I'm extracting some information from an XML file, and I want to perform some modifications on the data while keeping a copy of the original in a variable "origFile". This is what I have: require "rexml/document" include REXML doc = Document.new File.new(thePath) root = doc.root array = [] root.elements.each("dict/string") {|element| array << element} origFile = [] root.elements.each("dict"){|i| origFile << i} theBody = array[6][0].to_s theBody.gsub!(/\&lt;!-- more --\&gt;/, "----------Read More----------") The problem is that after I perform gsub! on theBody, origFile also has the modification. I don't understand why this would be or how to fix it. I would really appreciate your help.

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  • PHP MySQL New Lines / Whitespaces from textarea

    - by rob_robsen
    I've a problem about whitespaces and new lines at the beginning of a textarea. I send a json string with ajax to the php script. Then I decode the string into an php array (with json_decode). So I have a string in this array with two line breaks at the beginning. If a print the text from the array, the line breaks are there, but if I store the text into the mysql database, the line breaks are gone... Only at the beginning of the string, the line breaks gone... At the rest of the string, the line breaks are ok. Thanks for your answers! rob

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  • Illegal offset type

    - by BFTrick
    Hello, I am having trouble uploading a file through php. I check the file type at the beginning of the process and I get an error. This is the error I am getting: Warning: Illegal offset type in /balblabla/DBfunctions.inc.php on line 183 This is the printed out $_FILES var Array ( [Picture] = Array ( [name] = JPG.jpg [type] = image/jpeg [tmp_name] = /tmp/phpHlrNY8 [error] = 0 [size] = 192221 ) ) Here is the segment of code I am using that is giving me issues: function checkFile($file, $type) { if( in_array($_FILES[$file]['type'], $type) ){ // <--- LINE 183 return true; }//if return false; } // end checkFile() This is the line of code that calls the function if( checkFile( $_FILES['Picture'], array("image/jpeg") ) == true ){ //do stuff }// end if I have used this piece of code on dozens of websites on my own server so i am guessing that this is some different configuration option. How can i modify my code so that it works on this different server?

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  • Screen capture code produces black bitmap

    - by wadetandy
    I need to add the ability to take a screenshot of the entire screen, not just the current window. The following code produces a bmp file with the correct dimensions, but the image is completely black. What am I doing wrong? void CaptureScreen(LPCTSTR lpszFilePathName) { BITMAPFILEHEADER bmfHeader; BITMAPINFO *pbminfo; HBITMAP hBmp; FILE *oFile; HDC screen; HDC memDC; int sHeight; int sWidth; LPBYTE pBuff; BITMAP bmp; WORD cClrBits; RECT rcClient; screen = GetDC(0); memDC = CreateCompatibleDC(screen); sHeight = GetDeviceCaps(screen, VERTRES); sWidth = GetDeviceCaps(screen, HORZRES); //GetObject(screen, sizeof(BITMAP), &bmp); hBmp = CreateCompatibleBitmap ( screen, sWidth, sHeight ); // Retrieve the bitmap color format, width, and height. GetObject(hBmp, sizeof(BITMAP), (LPSTR)&bmp) ; // Convert the color format to a count of bits. cClrBits = (WORD)(bmp.bmPlanes * bmp.bmBitsPixel); if (cClrBits == 1) cClrBits = 1; else if (cClrBits bmiHeader.biSize = sizeof(BITMAPINFOHEADER); pbminfo-bmiHeader.biWidth = bmp.bmWidth; pbminfo-bmiHeader.biHeight = bmp.bmHeight; pbminfo-bmiHeader.biPlanes = bmp.bmPlanes; pbminfo-bmiHeader.biBitCount = bmp.bmBitsPixel; if (cClrBits bmiHeader.biClrUsed = (1bmiHeader.biCompression = BI_RGB; // Compute the number of bytes in the array of color // indices and store the result in biSizeImage. // The width must be DWORD aligned unless the bitmap is RLE // compressed. pbminfo-bmiHeader.biSizeImage = ((pbminfo-bmiHeader.biWidth * cClrBits +31) & ~31) /8 * pbminfo-bmiHeader.biHeight; // Set biClrImportant to 0, indicating that all of the // device colors are important. pbminfo-bmiHeader.biClrImportant = 0; CreateBMPFile(lpszFilePathName, pbminfo, hBmp, memDC); } void CreateBMPFile(LPTSTR pszFile, PBITMAPINFO pbi, HBITMAP hBMP, HDC hDC) { HANDLE hf; // file handle BITMAPFILEHEADER hdr; // bitmap file-header PBITMAPINFOHEADER pbih; // bitmap info-header LPBYTE lpBits; // memory pointer DWORD dwTotal; // total count of bytes DWORD cb; // incremental count of bytes BYTE *hp; // byte pointer DWORD dwTmp; int lines; pbih = (PBITMAPINFOHEADER) pbi; lpBits = (LPBYTE) GlobalAlloc(GMEM_FIXED, pbih-biSizeImage); // Retrieve the color table (RGBQUAD array) and the bits // (array of palette indices) from the DIB. lines = GetDIBits(hDC, hBMP, 0, (WORD) pbih-biHeight, lpBits, pbi, DIB_RGB_COLORS); // Create the .BMP file. hf = CreateFile(pszFile, GENERIC_READ | GENERIC_WRITE, (DWORD) 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, (HANDLE) NULL); hdr.bfType = 0x4d42; // 0x42 = "B" 0x4d = "M" // Compute the size of the entire file. hdr.bfSize = (DWORD) (sizeof(BITMAPFILEHEADER) + pbih-biSize + pbih-biClrUsed * sizeof(RGBQUAD) + pbih-biSizeImage); hdr.bfReserved1 = 0; hdr.bfReserved2 = 0; // Compute the offset to the array of color indices. hdr.bfOffBits = (DWORD) sizeof(BITMAPFILEHEADER) + pbih-biSize + pbih-biClrUsed * sizeof (RGBQUAD); // Copy the BITMAPFILEHEADER into the .BMP file. WriteFile(hf, (LPVOID) &hdr, sizeof(BITMAPFILEHEADER), (LPDWORD) &dwTmp, NULL); // Copy the BITMAPINFOHEADER and RGBQUAD array into the file. WriteFile(hf, (LPVOID) pbih, sizeof(BITMAPINFOHEADER) + pbih-biClrUsed * sizeof (RGBQUAD), (LPDWORD) &dwTmp, ( NULL)); // Copy the array of color indices into the .BMP file. dwTotal = cb = pbih-biSizeImage; hp = lpBits; WriteFile(hf, (LPSTR) hp, (int) cb, (LPDWORD) &dwTmp,NULL); // Close the .BMP file. CloseHandle(hf); // Free memory. GlobalFree((HGLOBAL)lpBits); }

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  • Determining the order of a list of numbers (possibly without sorting)

    - by Victor Liu
    I have an array of unique integers (e.g. val[i]), in arbitrary order, and I would like to populate another array (ord[i]) with the the sorted indexes of the integers. In other words, val[ord[i]] is in sorted order for increasing i. Right now, I just fill in ord with 0, ..., N, then sort it based on the value array, but I am wondering if we can be more efficient about it since ord is not populated to begin with. This is more of a question out of curiousity; I don't really care about the extra overhead from having to prepopulate a list and then sort it (it's small, I use insertion sort). This may be a silly question with an obvious answer, but I couldn't find anything online.

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  • Radius of multiple latitude/longitude points

    - by zekial
    I have a program that takes as input an array of lat/long points. I need to perform a check on that array to ensure that all of the points are within a certain radius. So, for example, the maximum radius I will allow is 100 miles. Given an array of lat/long (coming from a MySQL database, could be 10 points could be 10000) I need to figure out if they will all fit in a circle with radius of 100 miles. Kinda stumped on how to approach this. Any help would be greatly appreciated.

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  • number with sign in combobox dataprovider

    - by gauravgr8
    Hi, I am trying to display country codes(+91, +60, +01) in the combobox. Although the dataprovider(array) contains + sign but is removed. I am not getting how to show it with sign. <mx:Array id="countryArray"> <mx:Object label="India" data="+91" /> <mx:Object label="Malaysia" data="+60" /> <mx:Object label="Usa" data="+01" /> </mx:Array> Is this the problem with dataprovider? How can I treate them as text not numbers? Please help. Thanks in advance.

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  • Trim email list into domain list

    - by hanjaya
    The function below is part of a script to trim email list from a file into domain list and removes duplicates. /* define a function that can accept a list of email addresses */ function getUniqueDomains($list) { // iterate over list, split addresses and add domain part to another array $domains = array(); foreach ($list as $l) { $arr = explode("@", $l); $domains[] = trim($arr[1]); } // remove duplicates and return return array_unique($domains); } What does $domains[] = trim($arr[1]); mean? Specifically the $arr[1]. What does [1] mean in this context? How come variable $arr becomes an array variable?

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  • Dynamically adding data to a UITableView

    - by tableview
    Hey guys! I'm new to Objective C and I need a little help. I've created a UITableView in a UIViewController. I'd like to know how to populate my UITableView dynamically. The data is a bunch of labels that I've stored in a NSMutableArray. So each row displays the contents of the array. Once the array is reloaded with fresh data, the second row will then keep displaying the data as it is added to the array. Thanks in advance for any help!

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  • how to make variables in pre_controller hooks global to all controllers?

    - by ajsie
    in my pre_controller hook i have this code for doctrine: $manager = Doctrine_Manager::getInstance(); $conn = Doctrine_Manager::connection($db[$active_group][‘dsn’]); then in my controller i have this code to use doctrine connection i’ve created: $conn-export-createTable(‘test’, array(‘name’ = array(‘type’ = ‘string’))); $conn-execute(‘INSERT INTO test (name) VALUES (?)’, array(‘jwage’)); but $conn is undefined so it wont work. if i put the code in the pre_controller hook it will work. how can i make variables i declare in hooks available for all controllers so that i dont have to create a new connection all the time?

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  • Where to put a recursive function when following MVC?

    - by Glibly
    Hello, I have a recursive function being used to generate a menu on my site. The function is calling a database for each level of children in the menu, and generating html for them. I've currently put this function in a Model part of the code, however, I feel that generating html in the model goes against the MVC. I didn't put it in a Controller because I didn't want to have database calls or HTML generation there. I didn't put it in a View because I didn't want database calls there either. Is the 'correct' way of tackling this problem to have a Controller call a recursive function in a Model that returns a 2d array representing the menu. Then pass the array to a view which has it's own recursive function for generating html from the array?

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  • Get information about a function in python, looking at source code

    - by Werner
    Hi, the following code comes from the matplotlib gallery: #!/usr/bin/env python from pylab import * x = array([10, 8, 13, 9, 11, 14, 6, 4, 12, 7, 5]) y = array([8.04, 6.95, 7.58, 8.81, 8.33, 9.96, 7.24, 4.26, 10.84, 4.82, 5.68]) I am new to python, and would like to change the content of x and y from an input file. I have two short questions: I could guess what array means, but once I see it on the code, how can I know to which library it belongs and more information about it? Should I use some kind of python debug commands? How do I insert the content of my input file into x? Thanks

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  • How to order by results from 2 seperate tables in PHP and MySQL.

    - by Vafello
    I am trying to output results of 2 sql queries to one JSON file. The problem is that I would like to order them ascending by distance which is the result of equation that takes homelat and homelon from the users table and lat, lng from locations table.(basically it takes lattitude and longitude of one point and another and computes the distance between these points). Is it possible to take some parameters from both select queries, compute it and output the result in ascending order? $wynik = mysql_query("SELECT homelat, homelon FROM users WHERE guid='2'") or die(mysql_error()); ; $query = "SELECT * FROM locations WHERE timestamp"; $result = map_query($query); $points = array(); while ($aaa = mysql_fetch_assoc($wynik)) { while ($row = mysql_fetch_array($result, MYSQL_ASSOC)) { array_push($points, array('name'=>$row['name'], 'lat'=>$row['lat'], 'lng'=>$row['lng'], 'description'=>$row['description'], 'eventType'=>$row['eventType'], 'date'=>$row['date'], 'isotime'=>date('c', ($row['timestamp'])), 'homelat'=>$aaa['homelat'], 'homelon'=>$aaa['homelon'])); } echo json_encode(array("Locations"=>$points));

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  • Constructor/Destructor involving a class and a struct

    - by Bogdan Maier
    I am working on a program and need to make an array of objects, specifically I have a 31x1 array where each position is an object, (each object is basically built out of 6 ints). Here is what I have but something is wrong and i could use some help thank you. 31x1 struct header" const int days=31; struct Arr{ int days; int *M; }; typedef Arr* Array; 31x1 matrix constructor: void constr(){ int *M; M = new Expe[31]; // Expe is the class class header: class Expe { private: //0-HouseKeeping, 1-Food, 2-Transport, 3-Clothing, 4-TelNet, 5-others int *obj; } Class object constructor: Expe::Expe() { this->obj=new int[6]; } help please... because i`m pretty lost.

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  • Solving linear system over integers with numpy

    - by A. R. S.
    I'm trying to solve an overdetermined linear system of equations with numpy. Currently, I'm doing something like this (as a simple example): a = np.array([[1,0], [0,1], [-1,1]]) b = np.array([1,1,0]) print np.linalg.lstsq(a,b)[0] [ 1. 1.] This works, but uses floats. Is there any way to solve the system over integers only? I've tried something along the lines of print map(int, np.linalg.lstsq(a,b)[0]) [0, 1] in order to convert the solution to an array of ints, expecting [1, 1], but clearly I'm missing something. Could anyone point me in the right direction?

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  • Executing functions parallelly in PHP

    - by binaryLV
    Hi! Can PHP call a function and don't wait for it to return? So something like this: function callback($pause, $arg) { sleep($pause); echo $arg, "\n"; } header('Content-Type: text/plain'); fast_call_user_func_array('callback', array(3, 'three')); fast_call_user_func_array('callback', array(2, 'two')); fast_call_user_func_array('callback', array(1, 'one')); would output one (after 1 second) two (after 2 seconds) three (after 3 seconds) rather than three (after 3 seconds) two (after 3 + 2 = 5 seconds) one (after 3 + 2 + 1 = 6 seconds) Main script is intended to be run as a permanent process (TCP server). callback() function would receive data from client, execute external PHP script and then do something based on other arguments that are passed to callback(). The problem is that main script must not wait for external PHP script to finish. Result of external script is important, so exec('php -f file.php &') is not an option.

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  • sort giving strange results

    - by Jay
    I have an array of email addresses that I am trying to sort, but I'm getting odd results. Here is what I mean: sort($array); print_r($array); ...[79] => 91******@******.com [80] => 9l***@**********.com [81] => ps*******@**********.com [82] => a.c******@*****.com [83] => a.d****@*****.com... What would cause that email beginning with p's to be mixed in after the numbers and before the A's? I removed that email address from the database and replaced it with "testing" and then "testing" appeared in the same position.

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  • Two foreach loops, ideea for my code please

    - by webmasters
    Please give me an ideea for my code, its a simple links script. TY I need two foreach loops, one which loops my sites and one which loops my anchors. So i'll have <li>link to site1 and anchor to site1</li> <li>link to site2 and anchor to site2</li> <li>link to site3 and anchor to site3</li> $currentsite = ''.bloginfo('wpurl').''; $mysites = array('http://site1.com', 'http://site2.com', 'http://site3.com'); $myanchors = array('anchor1','anchor2','anchor3'); foreach($mysites as $mysite) ****** i need a foreach loop for the anchors array ******* { if ( $mysite !== $currentsite ){echo '<li><a href="'.$mysite.'" title="'.$myanchor.'">'.$myanchor.'</a></li>';} }

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  • ZF: Url View Helper Acting Strangely

    - by moteutsch
    I have the following route defined: $route = new Zend_Controller_Router_Route( 'users/:id', array( 'controller' => 'users', 'action' => 'profile', 'id' => '' ) ); When I am on the page via the shortened URL (localhost/users/someuser), the URLs defined in the layout file all link to "localhost/users". Here is the code in the layout: <li><a href="<?php echo $this->url(array('controller' => 'index'), null, true); ?>">Home</a></li> <li><a href="<?php echo $this->url(array('controller' => 'search'), null, true); ?>">Search</a></li> <!-- etc. --> How can I fix the code so that the links in the layout file point to the correct URLs?

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  • Separate groups of objects based on their properties

    - by Bevin
    I want to separate an array of my custom object into several arrays, based on the values of their two properties. The struct looks like this: struct MyStruct { public string Person { get; set; } public string Command { get; set; } } Now, if I have an array with a few objects: {Person1, cmd1} {Person1, cmd3} {Person2, cmd3} {Person3, cmd2} {Person2, cmd4} I want to be able to place them into one array for each person, that lists all of the commands for that person: {Person1: cmd1, cmd3} {Person2: cmd3, cmd4} {Person3: cmd2} I hope I've made it clear with my descriptions. I would assume that there is an elegant way to do this with LINQ, but I have no idea where to start.

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  • Calling different functions depending on the template parameter c++

    - by Noman Javed
    I want to have something like that class A { public: Array& operator()() { . . . } }; class B { public: Element& operator[](int i) { ... } }; template<class T> class execute { public: output_type = operator()(T& t) { if(T == A) Array out = T()(); else { Array res; for(int i=0 ; i < length; ++i) a[i] = t[i]; } } }; There are two issues here 1. Meta-function replacing if-else in the execute operator() 2. Return type of execute operator() Thanks in anticipation Noman

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  • How to code an efficient blacklist filter function in php?

    - by achairapart
    So, I have three arrays like this: [items] => Array ( [0] => Array ( [id] => someid [title] => sometitle [author] => someauthor ... ) ... ) and also a string with comma separated words to blacklist: $blacklist = "some,words,to,blacklist"; Now I need to match these words with (as they can be one of) id, title, author and show results accordingly. I was thinking of a function like this: $pattern = '('.strtr($blacklist, ",", "|").')'; // should return (some|words|etc) foreach ($items as $item) { if ( !preg_match($pattern,$item['id']) || !preg_match($pattern,$item['title']) || !preg_match($pattern,$item['author']) ) { // show item } } and I wonder if this is the most efficient way to filter the arrays or I should use something with strpos() or filter_var with FILTER_VALIDATE_REGEXP ... Note that this function is repeated per 3 arrays. However, each array will not contain more than 50 items.

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