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• Best Youtube embed player sizes?

  - by Xeoncross

  I use tumblr to share videos and, unfortunately, when re-posting a video to your tumblelog it uses the embed code at 400x336px. This is neither widescreen nor very large. So I'm trying to set the player to better size and I'm finding that the youtube player really comes in many sizes. For example, when copying the embed code for and HD video I get the sizes 560x340, 640x385, and 853x505. Then when I look at the embed code for a SD video I get the sizes 425x344, 480x385, and 640x505. I was having the best luck with setting the player to 640 x 505 as it was large enough for HD and perfect for SD. print str_replace( array('400', '336'), array('640', '505'), $video_player_html); Has anyone dealt with trying to find a good standard embed size for a site? One thing that would make this a lot easier is to know whether the video was HD or not - however, that info is not provided in the embed code. I guess I am actually more interested in knowing the right ratio (or specific size) to use that works the best for youtube's mixed content.

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• Get value of multiselect box using jquery or javascript

  - by Hulk

  In the code below, how to get the values of multiselect box in function val() using jquery or javascript. <script> function val() { //Get values of mutliselect drop down box } $(document).ready(function() { var flag=0; $('#emp').change(function() { var sub=$("OPTION:selected", this).val() if(flag == 1) $('#new_row').remove(); $('#topics').val(''); var html='<tr id="new_row" class="new_row"><td>Topics:</td><td> <select id="topic_l" name="topic_l" class="topic_l" multiple="multiple">'; var idarr =new Array(); var valarr =new Array(); {% for top in dict.tops %} idarr.push('{{top.is}}'); valarr.push('{{topic.ele}}'); {% endfor %} for (var i=0;i < idarr.length; i++) { if (sub == idarr[i]) { html += '<option value="'+idarr[i]+'" >'+valarr[i]+'</option>'; } } html +='</select></p></td></tr>'; $('#tops').append(html); flag=1; }); }); </script> Emp:&nbsp;&nbsp;&nbsp;&nbsp;<select id="emp" name="emp"> <option value=""></option> </select> <div name="tops" id="tops"></div> <input type="submit" value="Create Template" id="create" onclick="javascript:var ret=val();return ret;"> Thanks..

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• AbstractMethodError when invoking createArrayOf, with postgresql 8.4 jdbc4 and JBoss 5.1GA

  - by Francesco

  Hi, when using this method public List<Field> getFieldWithoutId(List<Integer> idSections) throws Exception { try { Connection conn = this.getConnection(); Array arraySections = conn.createArrayOf("int4", idSections.toArray()); this.log.info("Recupero field"); List<Field> fields = this.getJdbcTemplate().query(getFieldWithoutIdQuery, new Object[] {arraySections},ParameterizedBeanPropertyRowMapper.newInstance(Field.class)); /*if (!conn.isClosed()) conn.close(); */ releaseConnection(conn); return fields; } catch (Exception e) { e.printStackTrace(); throw new Exception("Errore."); } } I have an exception at conn.createArrayOf("int4", idSections.toArray());. The exception is: javax.ejb.EJBException : Unexpected Error java.lang.AbstractMethodError: org.jboss.resource.adapter.jdbc.jdk5.WrappedConnectionJDK5.createArrayOf(Ljava/lang/String;[Ljava/lang/Object;)Ljava/sql/Array; postgresql-8.4-701.jdbc4.jar is in jboss/server/all/lib dir. Application is spring based with ejb3. When working locally with the same setup everything is fine. This only happens on a preproduction environment. Only difference is locally I have jboss run in default mode, in the other case there are 2 jbosses in all configuration. I can't track down the cause of this error. Could someone help me please?

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• Calling gawk from python

  - by chavanak

  Hi, I am trying to call gawk from python in this manner. import os import string import codecs ligand_file=open( "2WTKA_ab.txt", "r" ) #Open the receptor.txt file ligand_lines=ligand_file.readlines() # Read all the lines into the array ligand_lines=map( string.strip, ligand_lines ) ligand_file.close() for i in ligand_lines: os.system ( " gawk %s %s"%( "'{if ($2==""i"") print $0}'", 'unique_count_a_from_ac.txt' ) ) My problem is that "i" is not being replaced by the value it represent. The value "i" represents is an integer and not a string. Can anyone help me out? Cheers, Chavanak

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• Multithreaded search with UISearchDisplayController

  - by Kulpreet

  I'm sort of new to any sort of multithreading and simply can't seem to get a simple search method working on a background thread properly. Everything seems to be in order with an NSAutoreleasePool and the UI being updated on the main thread. The app doesn't crash and does perform a search in the background but the search results yield the several of the same items several times depending on how fast I type it in. The search works properly without the multithreading (which is commented out), but is very slow because of the large amounts of data I am working with. Here's the code: - (void)filterContentForSearchText:(NSString*)searchText { NSAutoreleasePool *apool = [[NSAutoreleasePool alloc] init]; isSearching = YES; //[self.filteredListContent removeAllObjects]; // First clear the filtered array. for (Entry *entry in appDelegate.entries) { NSComparisonResult result = [entry.item compare:searchText options:(NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, [searchText length])]; if (result == NSOrderedSame) { [self.filteredListContent addObject:entry]; } } isSearching=NO; [self.searchDisplayController.searchResultsTableView performSelectorOnMainThread:(@selector(reloadData)) withObject:nil waitUntilDone:NO]; //[self.searchDisplayController.searchResultsTableView reloadData]; [apool drain]; } - (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString { [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(filteredListContent:) object:searchString]; [self.filteredListContent removeAllObjects]; // First clear the filtered array. [self performSelectorInBackground:(@selector(filterContentForSearchText:)) withObject:searchString]; //[self filterContentForSearchText:searchString]; // Return YES to cause the search result table view to be reloaded. return NO; }

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• RPXNow user mapping

  - by chelfers

  I am looking into solutions for providing multiple login methods to my site. I found rpxnow.com and they map user accounts from all the different networks. My question is how do they know that I am user1 on twitter and bigdude2 on facebook? I'm hoping it goes beyond email lookups. The end result I want is a unique user in my database no matter what account they sign in with, dupes are a no-no, but most likely inevitable I am guessing.

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• Making pascal's triangle with mpz_t's

  - by SDLFunTimes

  Hey, I'm trying to convert a function I wrote to generate an array of longs that respresents Pascal's triangles into a function that returns an array of mpz_t's. However with the following code: mpz_t* make_triangle(int rows, int* count) { //compute triangle size using 1 + 2 + 3 + ... n = n(n + 1) / 2 *count = (rows * (rows + 1)) / 2; mpz_t* triangle = malloc((*count) * sizeof(mpz_t)); //fill in first two rows mpz_t one; mpz_init(one); mpz_set_si(one, 1); triangle[0] = one; triangle[1] = one; triangle[2] = one; int nums_to_fill = 1; int position = 3; int last_row_pos; int r, i; for(r = 3; r <= rows; r++) { //left most side triangle[position] = one; position++; //inner numbers mpz_t new_num; mpz_init(new_num); last_row_pos = ((r - 1) * (r - 2)) / 2; for(i = 0; i < nums_to_fill; i++) { mpz_add(new_num, triangle[last_row_pos + i], triangle[last_row_pos + i + 1]); triangle[position] = new_num; mpz_clear(new_num); position++; } nums_to_fill++; //right most side triangle[position] = one; position++; } return triangle; } I'm getting errors saying: incompatible types in assignment for all lines where a position in the triangle is being set (i.e.: triangle[position] = one;). Does anyone know what I might be doing wrong?

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• Is Google Maps API V3 good enough to use now?

  - by Haroldo

  Firstly, only reply if you have experience using API V3 (i can speculate myself!) I had a little go with V3 and it looked great but would love to hear from someone who's given it a bit of use before I start working with it and deploy it on a live site. I'm only looking to do very basic things: put markers on a map custom markers info bubbles It all looks very easy with v3: http://www.svennerberg.com/2009/06/google-maps-api-3-the-basics/ is it stable enough?

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• How to add markers on Google Maps polylines based on distance along the line?

  - by mikl

  I am trying to create a Google Map where the user can plot the route he walked/ran/bicycled and see how long he ran. The GPolyline class with it’s getLength() method is very helpful in this regard (at least for Google Maps API V2), but I wanted to add markers based on distance, for example a marker for 1 km, 5 km, 10 km, etc., but it seems that there is no obvious way to find a point on a polyline based on how far along the line it is. Any suggestions?

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• Twitter-OAuth update_profile_*_image methods problem [EpiTwitter]

  - by KPL

  People, I have been struggling over the two methods - Update Profile Image and Update Background Image I am using EpiTwitter library. I am uploading GIFs, Twitter returns the expected result for update_profile_background_image but returns 401 for update_profile_image , but the image is not changed. Here are the headers catched from $apiObj-headers in my case while using the update_profile_background_image Array ( [Date] = Sat, 24 Apr 2010 17:51:36 GMT [Server] = hi [Status] = 200 OK [X-Transaction] = 1272131495-55190-23911 [ETag] = b6a421c01936f3547802ae6b59ee7ef3" [Last-Modified] = Sat, 24 Apr 2010 17:51:36 GMT [X-Runtime] = 0.13990 [Content-Type] = application/json; charset=utf-8 [Content-Length] = 1272 [Pragma] = no-cache [X-Revision] = DEV [Expires] = Tue, 31 Mar 1981 05:00:00 GMT [Cache-Control] = no-cache, no-store, must-revalidate, pre- check=0, post-check=0 [Set-Cookie] = *REMOVED* [Vary] = Accept-Encoding [Connection] = close ) and for update_profile_image - Array ( [Date] => Sat, 24 Apr 2010 17:57:58 GMT [Server] => hi [Status] => 401 Unauthorized [WWW-Authenticate] => Basic realm="Twitter API" [X-Runtime] => 0.02263 [Content-Type] => text/html; charset=utf-8 [Content-Length] => 152 [Cache-Control] => no-cache, max-age=300 [Set-Cookie] => *REMOVED* [Expires] => Sat, 24 Apr 2010 18:02:58 GMT [Vary] => Accept-Encoding [Connection] => close ) Can somebody help me out?

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• Avoid PHP timeout when sending newsletter

  - by Lars

  Hi, I have recently implemented the Swiftmailer library, but the first time I used it, I got a php timeout error even though it only had to send out mails to around 300 people.. (I should mention that using the set_time_limit(0); workaround is not an option due to restrictions on the server) The way I use it is like this: $transport = Swift_SmtpTransport::newInstance('smtp.mydomain.com',25); $mailer = Swift_Mailer::newInstance($transport); $message = Swift_Message::newInstance(); $message->setSubject($_POST['subj']); $message->setFrom(array('email' => 'Mysite')); $message->setTo($recipients); $message->setBody(strip_tags($messagebody)); $message->addPart($messagebody, 'text/html'); $numSent = $mailer->batchSend($message); printf("Sent %d messages\n", $numSent); where $recipients is a commaseparated array of emails (built with explode() from a mySQL query).. I have no idea which part of the above code that generates the script-timeout, and since I use it for a newsletter function, it is rather difficult for me to test or debug it, so I would be really thankful for anyone coming up with a (near) bulletproof solution to this problem :) Thanks in advance ! Lars

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• geocode webservice address parameter written in another language

  - by nicholas

  Dear fellow Programmers, I try to use the following google map webservice in order to locate greek addresses: http://maps.google.com/maps/api/geocode/json?address=??ad?µ?a? 16&sensor=false and it does not work. If I hit the same exactly address but written with latin alphabet characters: maps.google.com/maps/api/geocode/json?address=akadimias 16&sensor=false, it works and returns the right result. Could somebody help with this? (To use this service with greek letters as language parameter) Thank you in advance, Nicholas

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• PHP SoapClient() function returning a single XML string

  - by gjb

  I am having difficulty with the PHP SoapClient() function. The SOAP request is successful, but the response is returned as an object containing a single XML string with the key "any". For example: <?php $params = array('strUsername' => 'Test', 'strPassword' => 'Test'); $client=new SoapClient('http://www.example.com/webservice.asmx?wsdl', array('features' => SOAP_SINGLE_ELEMENT_ARRAYS)); $result = $client->strExampleCall($params); print_r($result); ?> This outputs the following: stdClass Object ( [strExampleCallResult] => stdClass Object ( [any] => <Response xmlns="" release="1.0.0" environment="Production" lang="en-GB"><ApplicationArea><Sender><SenderId>0</SenderId><ReferenceId>0</ReferenceId></Sender><Destination><DestinationId>1</DestinationId></Destination></ApplicationArea><DataArea><Result>1</Result></DataArea></Response> ) ) Subsequently, I cannot access properties of the object as I'd expect to: echo $result->strExampleCallResult->Response->DataArea->Result; Why isn't PHP parsing the SOAP response into properties of the returned object? I am using PHP 5.3.0 and believe the SOAP server is running .NET. Any suggestions will be much appreciated.

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• unable to send email using REST API build in php?

  - by Pushpendra Kuntal

  i am designing REST API in php. I want to send a page to send email. This is my code to send email: $app->get('/sendemail', function () { <?php require_once "Mail.php"; $from = "Sandra Sender <[email protected]>"; $to = "Ramona Recipient <[email protected]>"; $subject = "Hi!"; $body = "Hi,\n\nHey Kuntal, you done it..."; $host = "my host"; $username = "myuserid"; $password = "password"; $headers = array ('From' => $from, 'To' => $to, 'Subject' => $subject); $smtp = Mail::factory('smtp', array ('host' => $host, 'auth' => true, 'username' => $username, 'password' => $password)); $mail = $smtp->send($to, $headers, $body); if (PEAR::isError($mail)) { echo("<p>" . $mail->getMessage() . "</p>"); } else { echo("<p>Message successfully sent!</p>"); } ?> }); My code of sending email is working if i check this into my separate file. But this code is not working in API. please suggest me what should i do for this?

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• how to show avg of employees salary in a NSTextField using NSArrayController and cocoa bindings

  - by Miraaj

  Hi all, I am new to cocoa bindings so I tried to make a simple application which will simply calculate avg of employees salary and display it in a text field, using cocoa bindings. I followed these steps: Made the model class : Person with one property for now - @property (readwrite, assign) int salary; In the application delegate class I initialized a mutable array : personArray with certain objects like this: Person *person1 = [[Person alloc] init]; person1.salary = 5000; Person *person2 = [[Person alloc] init]; person2.salary = 15000; Person *person3 = [[Person alloc] init]; person3.salary = 7000; Person *person4 = [[Person alloc] init]; person4.salary = 9000; Person *person5 = [[Person alloc] init]; person5.salary = 11000; personArray= [[NSMutableArray alloc] initWithObjects:person1, person2, person3, person4, person5,nil]; In IB I dropped a NSArrayController object, set its mode as Class - Person, added key salary in attribute pane. Then in bindings pane, binded contents array to ApplicationDelegate class with model key path set to self.personArray. Dropped a NSTextField on window. Binded its value to ArrayController object. Assigned controller key as - arrangedObjects. Assigned Model key path to @avg.salary When I executed the application I found no value being displayed in the text field. Can anyone suggest me where I may be wrong? Thanks, Miraaj

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• PHP Codeigniter Undefined Offset Error

  - by Matt

  Hello, I am building a Codeigniter shopping cart. On the cart details page I have a form input field allowing the user to type in the quantity required of a product, and a submit button to post the information to the update function. When there is just one item in the cart, when updating the quantity everything works as it should. However, when there is more than one item, changing the quantity of an item and clicking submit results in a ‘Undefined Offset 1: error on the following code in the Model (specifically the two lines within the array) : function validate_update_cart() { $total = $this->cart->total_items(); $item = $this->input->post('rowid'); $qty = $this->input->post('qty'); for($i=0;$i < $total;$i++) { $data = array( 'rowid' => $item[$i], 'qty' => $qty[$i] ); $this->cart->update($data); } } This is the View code to which the above refers: <form action="<?php echo base_url(); ?>home/update" method="post"> <div><input type="hidden" name="rowid[]" value="<?php echo $item['rowid']; ?>"/></div> <div><input type="text" name="qty[]" value="<?php echo $item['qty']; ?>" maxlength="2" class="chg-qty"/></div> <div><input type="submit" value="update" class="update-quantity"/></div> </form> And this is the Controller: function update() { $this->products_model->validate_update_cart(); redirect('cart'); } Please can anyone explain why this is happening? Many thanks, Matt

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• Customize OpenLayers Control

  - by konzepz

  How can I easily customize OpenLayers map controls? Or at least, how can I minimize the controls' height? Thank you. PS. Is there any CSS override?

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• Can someone clarify what this Joel On Software quote means?

  - by Bob

  I was reading Joel On Software today and ran across this quote: Without understanding functional programming, you can't invent MapReduce, the algorithm that makes Google so massively scalable. The terms Map and Reduce come from Lisp and functional programming. MapReduce is, in retrospect, obvious to anyone who remembers from their 6.001-equivalent programming class that purely functional programs have no side effects and are thus trivially parallelizable. What does he mean when he says functional programs have no side effects? And how does this make parallelizing trivial?

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• ASP wizard browser back button

  - by dzajdol

  Hi. I used asp wizard with updatepanel and google map (it works great). Wizard has 3 steps - all work's great, but when i click browser back button steps changed and i lose all previous information. When i click wizard previouse button - i can see my information. i try this: http://dotnetslackers.com/articles/ajax/HandlingTheBackButtonFromServerCode.aspx but ScriptManager1.IsInAsyncPostBack always is false, and a hasn't hisotry - second problem: i want to get all information in this step Maybe some other solutions??

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• Parsing a file in C

  - by sfactor

  I need parse through a file and do some processing into it. The file is a text file and the data is a variable length data of the form "PP1004181350D001002003..........". So there will be timestamps if there is PP so 1004181350 is 2010-04-08 13:50. The ones where there are D are the data points that are three separate data each three digits long, so D001002003 has three coordonates of 001, 002 and 003. Now I need to parse this data from a file for which I need to store each timestamp into a array and the corresponding datas into arrays that has as many rows as the number of data and three rows for each co-ordinate. The end array might be like TimeStamp[1] = "135000", low[1] = "001", medium[1] = "002", high[1] = "003" TimeStamp[2] = "135015", low[2] = "010", medium[2] = "012", high[2] = "013" TimeStamp[3] = "135030", low[3] = "051", medium[3] = "052", high[3] = "043" .... The question is how do I go about doing this in C? How do I go through this string looking for these patterns? Note: Here the seconds value in timestamp is added on our own as it is known at each data comes after 15 seconds.

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• Unsupported operand types when value is integer

  - by Adam Tester

  I'm getting this error when trying to add 2 to an integer. I am using the Codeigniter framework. Fatal error: Unsupported operand types in D:\wamp\www\application\libraries\Gen_images.php on line 180 Here is where its called: // Now process the image var_dump($this->upload->data('image_width')); $this->gen_login->resize($file_name, $this->upload->data('image_width'), $this->upload->data('image_height')); I get the error on line 180 which is: $config['width'] = $width + 2; So I thought $width must be an array or string so I wouldn't be able to add to it, but the var dump shows this: array 'file_name' => string 'genyx_1341414096.jpg' (length=20) 'file_type' => string 'image/jpeg' (length=10) 'file_path' => string 'D:/wamp/www/beer/uploads/' (length=25) 'full_path' => string 'D:/wamp/www/beer/uploads/genyx_1341414096.jpg' (length=45) 'raw_name' => string 'genyx_1341414096' (length=16) 'orig_name' => string 'genyx_1341414096.jpg' (length=20) 'client_name' => string '294207_177080222375077_100002193022560_361510_991268937_s.jpg' (length=61) 'file_ext' => string '.jpg' (length=4) 'file_size' => float 55.85 'is_image' => boolean true 'image_width' => int 720 'image_height' => int 479 'image_type' => string 'jpeg' (length=4) 'image_size_str' => string 'width="720" height="479"' (length=24) Can anyone help me?

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• Finding minimum cut-sets between bounded subgraphs

  - by Tore

  If a game map is partitioned into subgraphs, how to minimize edges between subgraphs? I have a problem, Im trying to make A* searches through a grid based game like pacman or sokoban, but i need to find "enclosures". What do i mean by enclosures? subgraphs with as few cut edges as possible given a maximum size and minimum size for number of vertices for each subgraph that act as a soft constraints. Alternatively you could say i am looking to find bridges between subgraphs, but its generally the same problem. Given a game that looks like this, what i want to do is find enclosures so that i can properly find entrances to them and thus get a good heuristic for reaching vertices inside these enclosures. So what i want is to find these colored regions on any given map. My Motivation The reason for me bothering to do this and not just staying content with the performance of a simple manhattan distance heuristic is that an enclosure heuristic can give more optimal results and i would not have to actually do the A* to get some proper distance calculations and also for later adding competitive blocking of opponents within these enclosures when playing sokoban type games. Also the enclosure heuristic can be used for a minimax approach to finding goal vertices more properly. A possible solution to the problem is the Kernighan-Lin algorithm: function Kernighan-Lin(G(V,E)): determine a balanced initial partition of the nodes into sets A and B do A1 := A; B1 := B compute D values for all a in A1 and b in B1 for (i := 1 to |V|/2) find a[i] from A1 and b[i] from B1, such that g[i] = D[a[i]] + D[b[i]] - 2*c[a][b] is maximal move a[i] to B1 and b[i] to A1 remove a[i] and b[i] from further consideration in this pass update D values for the elements of A1 = A1 / a[i] and B1 = B1 / b[i] end for find k which maximizes g_max, the sum of g[1],...,g[k] if (g_max > 0) then Exchange a[1],a[2],...,a[k] with b[1],b[2],...,b[k] until (g_max <= 0) return G(V,E) My problem with this algorithm is its runtime at O(n^2 * lg(n)), i am thinking of limiting the nodes in A1 and B1 to the border of each subgraph to reduce the amount of work done. I also dont understand the c[a][b] cost in the algorithm, if a and b do not have an edge between them is the cost assumed to be 0 or infinity, or should i create an edge based on some heuristic. Do you know what c[a][b] is supposed to be when there is no edge between a and b? Do you think my problem is suitable to use a multi level problem? Why or why not? Do you have a good idea for how to reduce the work done with the kernighan-lin algorithm for my problem?

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• CF9 HQL Statement for many-to-many and Multiple Criteria

  - by Jeremy Battle

  I have the following setup: Listing.cfc component persistent="true" { property name="ListingId" column="ListingId" type="numeric" ormtype="int" fieldtype="id" generator="identity"; ... property name="Features" type="array" hint="Array of features" singularname="Feature" fieldtype="many-to-many" cfc="Feature" linktable="Listing_Feature" FKColumn="ListingId" inversejoincolumn="FeatureId"; } Feature.cfc component persistent="true" table="Feature" schema="dbo" output="false" { property name="FeatureId" column="FeatureId" type="numeric" ormtype="int" fieldtype="id" generator="identity"; property name="FeatureDescription" column="FeatureDescription" type="string" ormtype="string"; ... /*property name="Listings" fieldtype="many-to-many" cfc="Listing" linktable="Listing_Feature" fkcolumn="FeatureId" inversejoincolumn="ListingId" lazy="true" cascade="all" orderby="GroupOrder";*/ } I can select all listings that have a particular feature using: <cfset matchingListings = ormExecuteQuery("from Listing l left join l.Features as feature where feature.FeatureId = :feature",{feature = 110}) /> Which is fine, however, I'd like to be able to select all listings that have multiple features (for example a listing that has both "Dishwasher" AND "Garage") After a couple hours of googling and looking through hibernate documentation haven't been able to find a solution that won't give me an error. My guess is that the solution is pretty simple and I am just over-thinking it...anyone have any suggestions?

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• MKMapView Not Loading When Called on an NSThread?

  - by Chris

  I am creating a MKMapView in a method named "generateMap". From inside viewDidLoad, this works: [self generateMap]; but this causes the map to quickly load and then disappear, leaving only the blank grey grid: [NSThread detachNewThreadSelector:@selector(spinTheSpinner) toTarget:self withObject:nil]; Any ideas why this might be happening when I call the method through a thread?

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• Help with boost::lambda expression

  - by Venkat Shivanandan

  I tried to write a function that calculates a hamming distance between two codewords using the boost lambda library. I have the following code: #include <iostream> #include <numeric> #include <boost/function.hpp> #include <boost/lambda/lambda.hpp> #include <boost/lambda/if.hpp> #include <boost/bind.hpp> #include <boost/array.hpp> template<typename Container> int hammingDistance(Container & a, Container & b) { return std::inner_product( a.begin(), a.end(), b.begin(), (_1 + _2), boost::lambda::if_then_else_return(_1 != _2, 1, 0) ); } int main() { boost::array<int, 3> a = {1, 0, 1}, b = {0, 1, 1}; std::cout << hammingDistance(a, b) << std::endl; } And the error I am getting is: HammingDistance.cpp: In function ‘int hammingDistance(Container&, Container&)’: HammingDistance.cpp:15: error: no match for ‘operator+’ in ‘<unnamed>::_1 + <unnamed>::_2’ HammingDistance.cpp:17: error: no match for ‘operator!=’ in ‘<unnamed>::_1 != <unnamed>::_2’ /usr/include/c++/4.3/boost/function/function_base.hpp:757: note: candidates are: bool boost::operator!=(boost::detail::function::useless_clear_type*, const boost::function_base&) /usr/include/c++/4.3/boost/function/function_base.hpp:745: note: bool boost::operator!=(const boost::function_base&, boost::detail::function::useless_clear_type*) This is the first time I am playing with boost lambda. Please tell me where I am going wrong. Thanks.

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