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  • Looking for an array (vs linked list) hashtable implementation in C

    - by kingusiu
    hi, I'm looking for a hashtable implementation in C that stores its objects in (twodimensional) arrays rather than linked lists. i.e. if a collision happens, the object that is causing the collision will be stored in the next free row index rather than pushed to the head and first element of a linked list. plus, the objects themselves must be copied to the hashtable, rather than referenced by pointers. (the objects do not live for the whole lifetime of the program but the table does). I know that such an implementation might have serious efficiency drawbacks and is not the "standard way of hashing" but as I work on a very special system-architecture i need those characteristics. thanks

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  • Increment number in string

    - by iform
    Hi, I am stumped... I am trying to get the following output until a certain condition is met. test_1.jpg test_2.jpg .. test_50.jpg The solution (if you could remotely call it that) that I have is fileCount = 0 while (os.path.exists(dstPath)): fileCount += 1 parts = os.path.splitext(dstPath) dstPath = "%s_%d%s" % (parts[0], fileCount, parts[1]) however...this produces the following output. test_1.jpg test_1_2.jpg test_1_2_3.jpg .....etc The Question: How do I get change the number in its current place (without appending numbers to the end)? Ps. I'm using this for a file renaming tool.

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  • Using LINQ, need help splitting a byte array on data received from Silverlight sockets

    - by gcadmes
    The message packats received contains multiple messages deliniated by a header=0xFD and a footer=0xFE // sample message packet with three // different size messages List<byte> receiveBuffer = new List<byte>(); receiveBuffer.AddRange(new byte[] { 0xFD, 1, 2, 0xFE, 0xFD, 1, 2, 3, 4, 5, 6, 7, 8, 0xFE, 0xFD, 33, 65, 25, 44, 0xFE}); // note: this sample code is without synchronization, // statements, error handling...etc. while (receiveBuffer.Count > 0) { var bytesInRange = receiveBuffer.TakeWhile(n => n != 0xFE); foreach (var n in bytesInRange) Console.WriteLine(n); // process message.. // 1) remove bytes read from receive buffer // 2) construct message object... // 3) etc... receiveBuffer.RemoveRange(0, bytesInRange.Count()); } As you can see, (including header/footer) the first message in this message packet contains 4 bytes, and the 2nd message contains 10 bytes,a and the 3rd message contains 6 bytes. In the while loop, I was expecting the TakeWhile to add the bytes that did not equal the footer part of the message. Note: Since I am removing the bytes after reading them, the header can always be expected to be at position '0'. I searched examples for splitting byte arrays, but non demonstrated splitting on arrays of unknown and fluctuating sizes. Any help will be greatly appreciated. thanks much!

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  • javascript not loading after output of PHP file_get_contents() string

    - by mives
    I have the following structure: -uploadpage.html -index.php -resources -jquery.1.4.2.min.js On my index.php, I get the contents then output uploadpage.html through this code: $output = file_get_contents("uploadpage.html"); echo $output; My upload.html has the javascript at the bottom: <script type="text/javscript" src="./resources/jquery-1.4.2.min.js"></script> <script type="text/javascript"> $(document).ready( function() { callSomething(); } ); function callSomething() {return true;} </script> However this results in an error "$ is not defined" which means that the jquery js file is not loaded. Any ideas?

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  • Is the following array really multidimensional?

    - by flockofcode
    Book I’ learning from claims that intArray has two dimensions. But since calling intArray.GetLength(1) will result in an IndexoutOfRange exception, couldn’t we claim that unlike rectangular arrays, intArray isn’t really multidimensional and thus has only one dimension? int[][] intArray=new int[3][]; thank you

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  • input tags with array

    - by Dumbledore of flash
    Hi , Recently i am doing a project in which i encountered a strange problem this is the program which previous programmer did MPAN <input name="mpan[]" id="mpan[]" value="" maxlength="2" size="2" > ///this one to read <input name="mpan[]" id="mpan[]" value="" maxlength="3" size="3"> <input name="mpan[]" id="mpan[]" value="" maxlength="3" size="3"> <input name="mpan[]" id="mpan[]" value="" maxlength="2" size="2"> ///this one to read <input name="mpan[]" id="mpan[]" value="" maxlength="11" size="12"> i have to read it from a javascript what i did 1) document.getElementById("mpan").value == not reading script does not work 2) document.getElementById("mpan[]").value == reading first one 3) document.getElementById("mpan[0]").value == script does not work 4) document.getElementById("mpan[3]").value == script does not work can any body tell me how to read this from a javascript program

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  • Objective-C: how to splt a string constant across multiple lines

    - by Ilya
    Hi, I have a pretty long sqlite query: const char *sql_query = "SELECT statuses.word_id FROM lang1_words, statuses WHERE statuses.word_id = lang1_words.word_id ORDER BY lang1_words.word ASC"; How can I break it in a number of lines to make it easier to read? If I do the following: const char *sql_query = "SELECT word_id FROM table1, table2 WHERE table2.word_id = table1.word_id ORDER BY table1.word ASC"; I am getting a error. Is there a way to write queries in multiple lines? Thank you.

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  • Using sizeof with a dynamically allocated array

    - by robUK
    Hello, gcc 4.4.1 c89 I have the following code snippet: #include <stdlib.h> #include <stdio.h> char *buffer = malloc(10240); /* Check for memory error */ if(!buffer) { fprintf(stderr, "Memory error\n"); return 1; } printf("sizeof(buffer) [ %d ]\n", sizeof(buffer)); However, the sizeof(buffer) always prints 4. I know that a char* is only 4 bytes. However, I have allocated the memory for 10kb. So shouldn't the size be 10240? I am wondering am I thinking right here? Many thanks for any suggestions,

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  • textarea into array javascript

    - by user281180
    myList contains the following values: value1 value2 value3 function showArray() { var txt = $("#myList").text(); var textread = txt.split('\n'); var msg = ""; for (var i = 0; i < textread .length; i++) { msg += i + ": " + textread [i] + "\n"; } alert(msg); } my alert gives me the following: 0:value1 value2 value3 It`s not what I wanted and expecting, I was expecting something like: 0: value1 1: value2 2: value3 How can I get the values as expected?

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  • Null Pointer Exception with an array of bitsets

    - by p0ny
    could someone explain to me why the following results in a Null pointer Exception? And how to set a value for bitarray[0]? BitSet[] bitarray; bitarray= new BitSet[10]; bitarray[0].set(1); Also, why something like this work and not result in a pointer exception? BitSet[] bitarray = new BitSet[10]; BitSet bits = new BitSet(32); bits.set(1); bitarray[0] = bits; Thanks

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  • Interview question: C program to sort a binary array in O(n)

    - by Zacky112
    I've comeup with the following program to do it, but it does not seem to work and goes into infinite loop. Its working is similar to quicksort. int main() { int arr[] = {1,1,0,1,0,0,0,1,0,1,0,1,0,1,0,1,0,1}; int N = 18; int *front, *last; front = arr; last = arr + N; while(front <= last) { while( (front < last) && (*front == 0) ) front++; while( (front < last) && (*last == 1) ) last--; if( front < last) { int temp = *front; *front = *last; *last = temp; front ++; last--; } } for(int i=0;i<N;i++) printf("%d ",arr[i]); return 0; }

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  • I want to insert a text in p tag returning string tinyMCE through jquery

    - by user749884
    I want to insert a text in last p tag which is returning from tinyMCE by the following code var html = tinyMCE.activeEditor.getContent(); For this I am using the following jquery code tinyMCE.init({ mode : "textareas", theme : "advanced" }); $(document).ready(function(){ $("a[title='click_to_add']").click(function() { var html = tinyMCE.activeEditor.getContent(); html = $("#p:last").text(); alert(html); name = $(this).html(); content = html+" "+name; tinyMCE.activeEditor.setContent(content); return false; }); }); But it is not working.The HTML code is given below <div style="float:left;"> <textarea id="mail_body" name="mail_body" rows="15" cols="80" style="width:575px;"></textarea> </div> <div id="aaa"> <a href="#" id="news_user" title="click_to_add"> < name > </a> </div> Please give us a solution for this problem.

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  • problem with jQuery array being a newBie.

    - by user236106
    <html> <head> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js" type="text/javascript"></script> <script type="text/jscript"> $('document').ready(function (){ var clickNo=0; $('div#pics>img').hide() $('div#pics>input').click(function(event){ $('div#pics>img')[0].show('slow'); }) }); </script> </head> <body> <div id="pics"> <input type="button" value="next" /> <--a bunch of img tags .I had to resort to this comment because the system won't let me include the img tag in the code--> </div> </body> </html> I can't understand why the line $('div#picsimg')[0].show('slow'); is not working ?

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  • How to understand the output of the PHP regex matching below?

    - by smarty
    $file = '{include file="{$COMMON_TPL_PATH}common/header_admin.tpl"} {include file="{$mainPage}"} {include file="{$COMMON_TPL_PATH}common/footer_admin.tpl"}'; preg_match('/^(\{\})|^(\{\*([\S\s]*?)\*\})|^(<\?(?:php\w+|=|[a-zA-Z]+)?)|^([ ]*[ ]+[ ]*)|^(\{strip\})|^(\{\/strip\})|^(\{literal\})|^(\{\s{1,}\/)|^(\{\s{1,})|^(\{\/)|^(\{)|^(([\S\s]*?)(?=([ ]*[ ]+[ ]*|\{|<\?)))|^([\S\s]+)/', $file, $matches); var_dump($matches); Why the output is: array(13) { [0]=> string(1) "{" [1]=> string(0) "" [2]=> string(0) "" [3]=> string(0) "" [4]=> string(0) "" [5]=> string(0) "" [6]=> string(0) "" [7]=> string(0) "" [8]=> string(0) "" [9]=> string(0) "" [10]=> string(0) "" [11]=> string(0) "" [12]=> string(1) "{" } It seems to me that ^([\S\s]+) can match the whole string..

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  • Change $mailTo variable based on select input value (array)

    - by Dirty Bird Design
    I have the following select list: <form action="mail.php" method="POST"> <select name="foo" id="foo"> <option value="sales">Sales</option> <option value="salesAssist">Sales Assist</option> <option value="billing">Billing</option> <option value="billingAssist">Billing Assist</option> </select> </form> I need to route the $mailTo variable depending on which option they select, Sales and Sales Assist go to [email protected], while Billing and Billing Assist go to [email protected] PHP pseudeo code! <? php $_POST['foo'] if inArray(sales, salesAssist) foo="[email protected]"; else if inArray(billing, billingAssist) foo="[email protected]"; mailTo="foo" ?> I know there is nothing correct about the above, but you can see what I am trying to do, change a variable's value based on the selected value. I don't want to do this with JS, would rather learn more PHP here. Thank you.

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  • PHP login, getting wrong count value from query / fetch array

    - by Chris
    Hello, *EDIT*Thanks to the comments below it has been figured out that the problem lies with the md5, without everything works as it should. But how do i implent the md5 then? I am having some troubles with the following code below to login. The database and register system are already working. The problem lies that it does not find any result at all in the query. IF the count is 0 it should redirect the user to a secured page. But this only works if i write count = 0, but this should be 0 , only if the user name and password is found he should be directed to the secure (startpage) of the site after login. For example root (username) root (password) already exists but i cannot seem to properly login with it. <?php session_start(); if (!empty($_POST["send"])) { $username = ($_POST["username"]); $password = (md5($_POST["password"])); $count = 0; $con = mysql_connect("localhost" , "root", ""); mysql_select_db("testdb", $con); $result = mysql_query("SELECT name, password FROM user WHERE name = '".$username."' AND password = '".$password."' ") or die("Error select statement"); $count = mysql_num_rows($result); if($count > 0) // always goes the to else, only works with >=0 but then the data is not found in the database, hence incorrect { $row = mysql_fetch_array($result); $_SESSION["username"] = $row["name"]; header("Location: StartPage.php"); } else { echo "Wrong login data, please try again"; } mysql_close($con); } ?>

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