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  • And now for a complete change of direction from C++ function pointers

    - by David
    I am building a part of a simulator. We are building off of a legacy simulator, but going in different direction, incorporating live bits along side of the simulated bits. The piece I am working on has to, effectively route commands from the central controller to the various bits. In the legacy code, there is a const array populated with an enumerated type. A command comes in, it is looked up in the table, then shipped off to a switch statement keyed by the enumerated type. The type enumeration has a choice VALID_BUT_NOT_SIMULATED, which is effectively a no-op from the point of the sim. I need to turn those no-ops into commands to actual other things [new simulated bits| live bits]. The new stuff and the live stuff have different interfaces than the old stuff [which makes me laugh about the shill job that it took to make it all happen, but that is a topic for a different discussion]. I like the array because it is a very apt description of the live thing this chunk is simulating [latching circuits by row and column]. I thought that I would try to replace the enumerated types in the array with pointers to functions and call them directly. This would be in lieu of the lookup+switch.

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  • Overriding Built-in Classes (Python)

    - by Yipeng
    How can I view and override the full definition for built in classes? I have seen the library docs but am looking for something more. For e.g. is it possible to override the Array Class such that the base index starts from 1 instead of 0, or to override .sort() of list to a sorting algorithm of my own liking?

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  • Java Swing - Adding a row # column to a JTable

    - by llm
    I have data from a database loaded into a JTable through a custom table model. I want to have a column (should be the first column) which simply shows the display row number (i.e. it is not tied to any data (or sorting) but is simply the row number on the screen starting at 1). These "column headers" should be grayed out like the row headers. Any idea how to do this? Thanks

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  • Problem with PHP localeconv() - Maybe UTF-8

    - by Chuck Ugwuh
    I'm having an issue with the localeconv() in PHP. I'm using a Windows PC. I set my locale to France using setLocale(LC_ALL, 'fra_fra') function. Then I call the localeconv() function to a variable. When I output that variable, below is what I get. Array ( [decimal_point] = , [thousands_sep] = ? [int_curr_symbol] = EUR [currency_symbol] = ? [mon_decimal_point] = , [mon_thousands_sep] = ? [positive_sign] = [negative_sign] = - [int_frac_digits] = 2 [frac_digits] = 2 [p_cs_precedes] = 0 [p_sep_by_space] = 1 [n_cs_precedes] = 0 [n_sep_by_space] = 1 [p_sign_posn] = 1 [n_sign_posn] = 1 [grouping] = Array ( [0] = 3 ) [mon_grouping] = Array ( [0] = 3 ) ) I'm not sure if it is a UTF-8 display issue. I've done the following: Set my default_charset in PHP.ini to UTF-8 The Content-type on my page is UTF-8 I've also called same in a header i.e. header('Content-type: text/html; charset=utf-8') I'm using firefox and changed the charset there too, still no luck I also updated my http.conf file with AddDefaultCharset, but still no cigar I'm completely stumped and not sure what next to do. Can anyone help out? Thanks.

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  • Generating a zend form with dynamic data?

    - by meder
    I need to access my session and based on the session property I need to grab stuff from the database to use as options in my dropdown. $_SESSION is: [sess_name] => Array( [properties] => Array( 1=> Hotel A, 2=> Hotel B ), [selected] => 1 ) I need to grab Hotel A from selected, and then access all accounts under Hotel A from the database: id title hotel_id ------------------------------ 1 Hotel A Twitter Account 1 2 Hotel B Facebook Account 2 3 Hotel A Facebook Account 1 I need ids 1 and 3 because my hotel_id is 1 in the context of: $this->addElement( 'select', 'account', array( 'multioptions' => $NEED_IT_HERE )); Here's my query / session grabbing code: $cs = new Zend_Session_Namespace( SESS_NAME ); $model = new Model_DbTable_Social; $s = " SELECT social_accounts.* FROM social_accounts LEFT JOIN social_media_outlets ON social_media_outlets.id = social_accounts.property WHERE social_accounts.property=".(int)$cs->selectedclient; I have this code in my form page, but I need to move it into my model now.

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  • How to select "child" entities in subview?

    - by Andy
    I am trying to manage a drill-down list of data. I've got an entity, Contact, that has a to-many relationship with another entity, Rule. In my root view controller, I use a fetched results controller to manage and display the list of Contacts. When a Contact is tapped, I push a new view controller onto the stack with a list of the Contact's Rules. I have not been able to figure out how to use a second fetched results controller to display the Rules, so I'm using the following: // create a set of the contact's rules rules = [NSMutableSet set]; rules = [self.contact mutableSetValueForKey:@"rule"]; // create an array of rules from the set arrayOfRules = [NSMutableArray arrayWithCapacity:[rules count]]; for (id oneObject in rules) [arrayOfRules addObject:oneObject]; // sort the array of rules NSSortDescriptor *descriptor = [[NSSortDescriptor alloc] initWithKey:@"phoneLabel" ascending:YES]; [arrayOfRules sortUsingDescriptors:[NSArray arrayWithObject:descriptor]]; [descriptor release]; I create a set of Rules, then use that to create an array of Rules for sorting. I then use these two collections to populate the grouped table view. All of this appears to be working correctly. Here's my problem: There are several different actions a user can take in this view, and most of them require that I know which Rule was tapped. But I can't figure out how to get that. For instance, say a user wants to delete a Rule. It seems to me the proper approach is something like... [rules removeObject:ruleObjectToBeRemoved] ...but I can't figure out how to specifiy ruleObjectToBeRemoved. I hope all of this makes sense. As usual, thanks in advance for any advice you can offer.

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  • Looping through with dates

    - by Luke
    I have created a fixture generator for football/ soccer games... $totalRounds = $teams - 1; $matchesPerRound = $teams / 2; $rounds = array(); $roundDates = array(); $curTime = time(); for ($i = 1; $i <= $totalRounds; $i++) { $rounds[$i] = array(); $numDays = $i * 4; $roundDates[$i] = strtotime("+".$numDays." days",$curTime); } foreach($roundDates as $time) { for ($round = 0; $round < $totalRounds; $round++) { for ($match = 0; $match < $matchesPerRound; $match++) { $home = ($round + $match) % ($teams - 1); $away = ($teams - 1 - $match + $round) % ($teams - 1); // Last team stays in the same place while the others // rotate around it. if ($match == 0) { $away = $teams - 1; } $rounds[$round][$match] = "$user[$home]~$team[$home]@$user[$away]~$team[$away]~$time"; } } } In the code, for $i = 1, i thought that if you want the first date 4 days from now, the i must be 1, so 1 * 4 = 4. If i was 0, 0 * 4 equals 0. I assume this is correct thinking? Anyway the main question is, trying to generate the dates isn't working. When i created a fixture list for 4 users home and away, I got 12 fixtures. 10 of these had the same date on them, and the other 2 didnt have a date. Can anyone help me with this? Thanks

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  • Accessing preloaded images from parent script too use in child script. How?

    - by Matt
    I'm trying to update an image in a parent window with clickable links in a child window. I've preloaded the images in the parent window with one javascript file. "scriptss.js" My problem is I need to access the preloaded images of the parent window with the childscript "scriptremote.js" Thanks again for all the JS Help! The JS (scriptss.js) var newWindow = null; window.onload = init; var i = 0; image_object = new Image(); myImages = new Array(); // declare array myImages[0]="images/img1.jpg" // load array myImages[1]="images/img2.jpg" myImages[2]="images/img3.jpg" myImages[3]="images/img4.jpg" myImages[4]="images/img5.jpg" myImages[5]="images/img6.jpg" Here's the HTML for parent window: <img src="" width="200px" height="200px" id="myimage" name="myimage" /></img> Here's the JS for child window: window.onload = init; function init() { } function first_image() { window.parent.image_object.src = myImages[3]; //Problem happens here I think document.getElementById("myimage")window.parent.src = window.parent.image_object.src; } The HTML Child Window <h1>My Remote</h1> <a href="#" id="first" onclick="first_image()" >First Image</a> </br>

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  • Should multiple regional websites all use the same database?

    - by John Himmelman
    I'm developing a cms for a company that has multiple regional sites (us, uk, china, russia, etc..). Should I use a separate database for each of these sites or use a single database with a 'site' field in each table? My main concern is the table language encoding (ie, can storing strings in different langauges in the same table cause problems, such as sorting issues).

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  • Sort std::vector by an element inside?

    - by user146780
    I currently have a std::vector which holds std::vector of double. I'd want to sort it by the second element of the double vectore. ex: instead of sorting by MyVec[0] or myvec[1] I wat it to sort myVec[0] and myvec[1] based on myvec[0][1] myvec[1][1]. Basically sort by a contained value, not the objects in it. so if myvec[0][1] is less than myvec[1][1] then myvec[0] and myvec[1] will swap. Thanks

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  • PHP Saving information to MySQL but not using hard coded code

    - by Homer_J
    Hi guys, Thanks everyone for assisting me but know I'm well and truely stuck...hopefully someone can advise? My current code that saves to a MySQL database: $q1 = $_POST["q1"]; $q2 = $_POST["q2"]; $q3 = $_POST["q3"]; $q4 = $_POST["q4"]; $q5 = $_POST["q5"]; $q6 = $_POST["q6"]; $q7 = $_POST["q7"]; $q8 = $_POST["q8"]; $proc = mysqli_prepare($link, "INSERT INTO tresults_bh_main (respondent_id, ip, browser, q1, q2, q3, q4, q5, q6, q7, q8) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?);"); mysqli_stmt_bind_param($proc, "issiiiiiiii", $respondent_id, $ip, $browser, $q1, $q2, $q3, $q4, $q5, $q6, $q7, $q8); At the moment this is all hard coded and I need it to use variables: I have an array which stores the following information: $qs['questions'] - stores, for example q1, q2, q3, q4 etc - obviously these change both in terms of of numbers, ie. q10, q11, q12 and also the amount in the array - so there could be 4 q's or 10 q's stored in the array. What I struggling to get my head around is how I would set-up this hard coded page to work with my variables. If anyone can help, much appreciated. Homer.

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  • Symfony 1.4 Form Value change after getValues()

    - by bertzzie
    Hi, I've got some problem with symfony form value (i guess it's the clean value, but not so clear yet). Here's the problem : I got a sfFormDateJQueryUI widget setup like this in my form : $this->setWidgets(array( 'needDate' => new sfWidgetFormDateJQueryUI(), )); $this->setValidators(array( 'needDate' => new sfValidatorDate(array( 'required' => true, 'date_format' => '/^[0-9]{2}\/[0-9]{2}\/[0-9]{4}$/', 'date_output' => 'd/m/Y' )), )); Then when i submit, say 26/06/2010, it turns out right in the HTTP Header (viewed via Firebug) and $request (i just print it). But after i get the value via $formVal = $form->getValues(); the date value in $formVal["needDate"] become today's date (03/06/2010). I really don't understand, and after checking in the API documentation it says that the getValues will return the 'cleaned' value. Is that because of it ? I don't understand what's 'clean'. Thanks before..

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  • Display error message at top of form

    - by moustafa
    Hello, I'm trying to get the following error to show when some once presses the submit button and has not filled in the required field/s. My PHP code is. <?php require_once("includes/database.php"); require_once("includes/functions.php"); if(isset($_POST['full_name'])) { $required = array('full_name','user_name','email','pwd','pwd2'); $missing = array(); $validation = array( 'full_name' => 'Please provide your full name', 'user_name' => 'Please provide your username', 'email' => 'Please provide your valid email address', 'pwd' => 'Please provide your password', 'pwd2' => 'Please confirm your password', 'userdup' => 'Username already registered', 'emaildup' => 'Email address already registered', 'mismatch' => 'Passwords do not match' ); //Sanitise and clean function $full_name = escape($_POST['full_name']); $user_name = escape($_POST['user_name']); $email = escape($_POST['email']); $pwd = escape($_POST['pwd']); $pwd2 = escape($_POST['pwd2']); foreach($_POST as $key => $value) { $value = trim($value); if(empty($value) && in_array($key,$required)) { array_push($missing,$key); } else { ${$key} = escape($value); } }

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  • SharePoint 2010 - Change table row /cell hover effect

    - by Sam
    In SharePoint 2010 when you hover over a column heading (i.e. to sort) in a list table, you get a hover effect, how can you supress / change this? I can see it uses OnChildColumn(this), so is there a way to modify this - either preventing the effect (e.g. when sorting can't be done on a column), or using a different background image? Also want to do the same when you hover over a cell in any of the list table's contents.

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  • What is the cleanest way to do a sort plus uniq on a Python list?

    - by knorv
    Consider a Python list my_list containing ['foo', 'foo', 'bar']. What is the most Pythonic way to uniqify:ing and sorting and the list (think cat my_list | sort | uniq)? This is how I currently do it and while it works I'm sure there are better ways to do it. my_list = [] ... my_list.append("foo") my_list.append("foo") my_list.append("bar") ... my_list = set(my_list) my_list = list(my_list) my_list.sort()

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  • Accessing preloaded images from parent script two use in child script. How?

    - by Matt
    I'm trying to update an image in a parent window with clickable links in a child window. I've preloaded the images in the parent window with one javascript file. "scriptss.js" My problem is I need to access the preloaded images of the parent window with the childscript "scriptremote.js" Thanks again for all the JS Help! The JS (scriptss.js) var newWindow = null; window.onload = init; var i = 0; image_object = new Image(); myImages = new Array(); // declare array myImages[0]="images/img1.jpg" // load array myImages[1]="images/img2.jpg" myImages[2]="images/img3.jpg" myImages[3]="images/img4.jpg" myImages[4]="images/img5.jpg" myImages[5]="images/img6.jpg" Here's the HTML for parent window: <img src="" width="200px" height="200px" id="myimage" name="myimage" /></img> Here's the JS for child window: window.onload = init; function init() { } function first_image() { window.parent.image_object.src = myImages[3]; //Problem happens here I think document.getElementById("myimage")window.parent.src = window.parent.image_object.src; } The HTML Child Window <h1>My Remote</h1> <a href="#" id="first" onclick="first_image()" >First Image</a> </br>

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  • How to sort MySQL query by two columns

    - by user334269
    The following is my DB data, how can I sorting it by sid and prev_sid with php/mysql!? sid prev_sid type 000 197 app_home 197 198 page_teach 198 218 page_teach 199 211 page_step 211 207 link 218 559 page_step 559 199 page_step Result: sid prev_sid type 000 197 app_home 197 198 page_teach 198 218 page_teach 218 559 page_step 559 199 page_step 199 211 page_step 211 207 link 000 197 198 218 559 199 199 211 207

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  • C function prototype: void f(). Is it recommended?

    - by ycalleecharan
    Hi, I'm learning C and I saw in a book that a function prototype has the form void f() and in the function declaration or in the calling function, the f function takes arguments. Thus In the function declaration we have something like void f(long double y[], long double A) and in the calling function is f(y, A). The function is doing operations on the array y i.e. when the function is called, some elements in the array y are changing. A is just a constant numerical value that doesn't change. I have two questions: If defining the function prototype at the top in the program as void f() a good practice? Or is it better to put it as void f(long double y[], long double A) as in the function declaration? The called function f is changing elements in the array y. Is void the right return type? The program is working fine as such with the void as described. Or should I change all my "voids" to "long double". I'm working with long double as I need as much precision as possible though on my machine both double and long double gives me 15 precision digits. Thanks a lot

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  • JSON element detection

    - by user3614570
    I’ve created a string… {"atts": [{"name": "wedw"}, {"type": "---"}]} I pile a bunch of these together in an array based on user input and attach them to another string to complete a JSON object that tests out as valid. So I end up with a global array called fields with a bunch of these little snippets. So how do I change the name "weds" with a new name? I’ve tried... function changefieldname(pos){ var obj = JSON.parse(jsonstring); var oldname = obj.tracelog.fields[pos].atts[0]["name"]; var newname = document.getElementById("newlogfieldname"+pos).value; fields[pos].replace(oldname, newname); //writejson(); } And a bunch of variations. I know everything is checking out correct interms of the variables pos, oldname, and newname. I also know that fields[pos] returns the string in the array I want to correct but it’s not happy. I also tried converting fields[pos] to a string, but the replace function doesn't work on it. I’m sure there is a good reason.

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  • float** allocation limit + serialized struct problem. Need advice!

    - by jmgunn
    basically im getting an allocation limit error/warning when i create a float** array. the function i am calling to fill the float** retrieves data from a struct loaded from a file. The function works fine when i use one object but when i load 2 objects into memory i get the limit error. I am pretty sure this is to do with byte alignment or a similar thing because my struct is saved with a float** member which i am sure you are not susposed to do !?! Please confirm this! The next question i have now is how to save/serialize the float** member of this struct? I cant really afford to put an upper bound on the array ie "float [10000][3]" because i need/want to use this structure as a base for many other types of objects that may have well under the upper bound. Stroking my chin here! Any help/advice will recieve my highest gratitude. BTW these said struct objects will be used in a game/graphics package, the float** is a float[3] array for storing vertices in a model. Much thanks in advance

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  • generate k distinct number less then n

    - by davit-datuashvili
    hi i have following question task is this generate k distinct positive numbers less then n without duplication my method is following first create array size of k where we should write these numbers int a[]=new int[k]; //now i am going to cretae another array where i check if (at given number position is 1 then generate number again else put this number in a array and continue cycle i put here a piece of code and explanations int a[]=new int[k]; int t[]=new int[n+1]; Random r=new Random(); for (int i==0;i<t.length;i++){ t[i]=0;//initialize it to zero } int m=0;//initialize it also for (int i=0;i<a.length;i++){ m=r.nextInt(n);//random element between 0 and n if (t[m]==1){ //i have problem with this i want in case of duplication element occurs repeats this steps afain until there will be different number else{ t[m]=1; x[i]=m; } } so i fill concret my problem if t[m]==1 it means that this element occurs already so i want to generate new number but problem is that number of generated numbers will not be k beacuse if i==0 and occurs duplicate element and we write continue then it will switch at i==1 i need like goto for repeat step or for (int i=0;i<x.length;i++){ loop: m=r.nextInt(n); if ( x[m]==1){ continue loop; } else{ x[m]=1; a[i]=m; continue;//continue next step at i=1 and so on } } i need this code in java please help

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  • Data transformation question

    - by tkm
    I have data composed of a list of employers and a list of workers. Each has a many-to-many relationship with the other (so an employer can have many workers, and a worker can have many employers). The way the data is retrieved (and given to me) is as follows: each employer has an array of workers. In other words: employer n has: worker x, worker y etc. So I have a bunch of employer objects each containing an array of workers. I need to transform this data (and basically invert the relationship). I need to have a bunch of worker objects, each containing and array of employers. In other words: worker x has: employer n1, employer n2 etc. The context is hypothetical so please don't comment on why I need this or why I am doing it this way. I would really just like help on the algorithm to perform this transformation (there isn't that much data so I would prefer readability over complex optimizations which reduce complexity). (Oh and I am using Java, but pseudocode would be fine). Thanks!

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  • Conditional fieldgroups/fieldsets in Drupal 7

    - by seane
    Background: In Drupal 7, I have created a form with CCK (aka the Field UI). I used the Field group module to create a fieldgroup, but I need it to be conditional, meaning it will only display depending on a previous answer. Previous research: To create a conditional field, you can use hook_form_alter() to edit the #states attribute like so: function MYMODULE_form_alter(&$form, &$form_state, $form_id) { if ($form_id == 'person_info_node_form') { // Display 'field_maiden_name' only if married $form['field_maiden_name']['#states'] = array( 'visible' => array( ':input[name="field_married[und]"]' => array('value' => 'Yes'), ), ); } } However, there seems to be no way to use the States API for fieldgroups. One thing to note is that, while fields are stored in $form, fieldgroups are stored in $form['#groups'] as well as in $form['#fieldgroups']. I don't know how to distinguish between these, and with this in mind, I have tried to apply a #states attribute to a fieldgroup in the same manner as above. However, it only produces server errors. Question: Is there a way to make a fieldgroup display conditionally using the States API or some alternative approach?

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  • A loop (while/foreach) with "offset" wrapping and

    - by DarkGhostHunter
    After applying what wrapping objects using math operator, I just tought it will be over. But no. By far. <?php $faces= array( 1 => '<div class="block">happy</div>', 2 => '<div class="block">sad</div>', (sic) 21 => '<div class="block">angry</div>' ); $i = 1; foreach ($faces as $face) { echo $face; if ($i == 3) echo '<div class="block">This is and ad</div>'; if ($i % 3 == 0) { echo "<br />"; // or some other wrapping thing } $i++; } ?> In the code I have to put and ad after the second one, becoming by that the third object. And then wrap the three all in a <div class="row"> (a br after won't work out by design reasons). I thought I will going back to applying a switch, but if somebody put more elements in the array that the switch can properly wrap, the last two remaining elements are wrapped openly. Can i add the "ad" to the array in the third position? That would make things simplier, only leaving me with guessing how to wrap the first and the third, the fourth and the sixth, an so on.

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