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  • Copy constructor, objects, pointers

    - by Pauff
    Let's say I have this: SolutionSet(const SolutionSet &solutionSet) { this->capacity_ = solutionSet.capacity_; this->solutionsList_ = solutionSet.solutionsList_; // <-- } And solutionsList_ is a vector<SomeType*> vect*. What is the correct way to copy that vector (I suppose that way I'm not doing it right..)?

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  • using php to create a joomla user password?

    - by SoulieBaby
    Hi all, I'm trying to create a custom registration component for Joomla, and I was wondering if anyone knew how to create the correct password encryption for joomla? Joomla passwords look like this : fbae378704687625a410223a61c66eb1:VM6DwmVWHTwpquDq51ZXjWWADCIc93MR Which I believe are md5 (or something) and one way encryption? Am just looking for a php code of sorts to create that same encryption. Cheers

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  • C#: How would you only draw certain ListView Items while in Virtual Mode?

    - by Jonathan Richter
    C#: How would you only draw certain ListView Items while in Virtual Mode? I am trying to create a filter-like feature to use in listview so that if the user selects an imageindex from 0-5, it will loop through the listview items and only make it so that the items in question with the correct image index will be displayed and the other items will be hidden. How would I go upon creating such a routine?

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  • read-only memory and heap memory

    - by benjamin button
    hi, AFAIK, string literals are stored in read only memory in case of C language. where is this actually present on the hardware. as per my knowledge heap is on RAM.correct me if i am wrong. how different is heap from read only memory? is it OS dependant?

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  • How to validate a Singaporean FIN?

    - by abigblackman
    Can anyone provide an algorithm to validate a Singaporean FIN? I know with a Singaporean NRIC I can validate it via modulo 11 and then compare the result to a lookup table but cannot find a similar lookup table for the FIN. I also do not know for sure if the modulo 11 is the correct method to validate. I am aware the government sells a algorithm for $400 but maybe someone knows a cheaper way. Bonus points for c# implementation.

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  • Place images byte into String is not working?

    - by Proyb2
    I tried on Flex 3, facing issue with uploading JPG/PNG image, trace readUTFBytes would return correct bytes length but tmpFileContent is trucated, it would only appear to have upload just 3 characters of data to the server through PHP script which made image unusable. I have no issue for non-images format. What is wrong here? var tmpFileContent:String = fileRef.data.readUTFBytes(fileRef.data.length); Is String capable of handle bytes?

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  • wrong interface orientation or unknown

    - by Mike
    The problem is this: I put the simulator in landscape I start the app The app is unable to detect the correct orientation, always unknown! I have created a sample project that demonstrates the problem I have. Take it here How can I solve that? thanks

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  • Ruby on Rails: Can I do a "link_to" to call a create action?

    - by sjsc
    How would I correctly call the create action from a link_to? Here's the create action: def create recipe = Recipe.create(:name => "French fries") redirect_to recipe end For example, I thought something like this might work: <%= link_to "Create a default recipe", recipe_path, :method => :post %> I'm not sure if that's a recommended (or even correct) way to do it. Any idea?

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  • Cocoa class not displaying data in NSWindow

    - by Matt S.
    I have one class that controls one window, and another class that controls a different window in the same xib, however, the second window never displays what it should. In the first class I alloc and init the second class, then pass some information to it. In the second class it displays that data in the table view. Yes, in the .xib I have all the connections set up correctly, I've quadruple checked. Also the code is correct, same with the connections, I've quadruple checked.

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  • State server in webfarm scenario?

    - by Curtis White
    This is a fairly basic question about state server but assume there are 2 servers behind a load balancer. How do I configure the session state server? So, I have machine1 and machine2. I would assume that I would need to install the state server on 1 machine only and then use the internal IP to refer to that machine. Is this correct? As oppose too, I would not install state server on both machines.

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  • Back Button disable

    - by vigna hari karthik
    Hai Friends I have used lot of codinds to disable the browser (using server side code) back button in mozila firefox 3.2 it is not working.But it is working fine in the Internet Explorer.Pls same the correct solution to solve this problem in mozila firefox3.2 version.say me in detail.

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  • Using PHP session_id() to Make Sure iframe is Generated by Our Server Dynamically

    - by Michael Robinson
    We use iframes to show ads on our site. Iframes are used to allow us to keep the ad generation code and other site modules separate. As we track ad views on our site, and need to be able to keep an accurate count of which pagetype gets what views, I must ensure that users can't simply copy-paste the iframe in which the ad is loaded onto another site. This would cause ad count to become inflated for this page, and the count would not match the view count of the page the iframe "should" be displayed in. Before anyone says so: no I can't simply compare the page view count with the ad view count, or use the page view count * number of ads per page, as # of ads per page will not necessarily be static. I need to come up with a solution that will allow ads to be shown only for iframes that are generated dynamically and are shown on our pages. I am not familiar with PHP sessions, but from what little reading I have had time to do, the following seems to be to be an acceptable solution: Add "s = session_id()" to the src of the ad's iframe. In the code that receives and processes ad requests, only return (and count) and ad if s == session_id(). Please correct me if I'm wrong, but this would ensure: Ads would only be returned to iframes whose src was generated alongside the rest of the page's content, as is the case during normal use. We can return our logo to ad calls with an invalid session_id. So a simple example would be: One of our pages: <?php session_start(); ?> <div id="someElement"> <!-- EVERYONE LOVES ADS --> <iframe src="http//awesomesite.com/ad/can_has_ad.php?s=<?php echo session_id(); ?>></iframe> </div> ad/can_has_ad.php: <?php session_start(); ?> if($_GET['s'] == session_id()){ echo 'can has ad'; } else{ echo '<img src="http://awesomesite.com/images/canhaslogo.jpg"/>'; } And finally, copied code with static 's' parameter: <!-- HAHA LULZ I WILL SCREW WITH YOUR AD VIEW COUNTS LULZ HAHA --> <iframe src="http//awesomesite.com/ad/can_has_ad.php?s=77f2b5fcdab52f52607888746969b0ad></iframe> Which would give them an iframe showing our awesome site's logo, and not screw with our view counts. I made some basic test cases: two files, one that generates the iframe and echos it, and one that the iframe's src is pointed to, that checks the 's' parameter and shows an appropriate message depending on the result. I copied the iframe into a file and hosted it on a different server, and the correct message was displayed (cannot has ad). So, my question is: Would this work or am I being a PHP session noob, with the above test being a total fluke? Thanks for your time! Edit: I'm trying to solve this without touching the SQL server

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  • Java Can't Find File when Running through Eclipse

    - by derekerdmann
    When I run a Java application that should be reading from a file in Eclipse, I get a java.io.FileNotFoundException, even though the file is in the correct directory. I can compile and run the application from the command line just fine; the problem only occurs in Eclipse, with more than one project and application. Is there a setting I need to change in the run configurations or build paths to get it to find the file correctly?

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  • php/ldap - bind fails but errorno doesn't execute

    - by user240907
    I am trying to connect to ldap with a php web application. If the username/password is correct everything works fine however if the username/password is incorrect I get the following error: PHP Warning: ldap_bind() [function.ldap-bind]: Unable to bind to server: Invalid credentials for some reason I am not able to look at the errorno or the state of the bind variable afterwards to print the appopriate user friendly error message. any ideas?

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  • Go - Methods of an interface

    - by nevalu
    Would be correct the next way to implement the methods attached to an interface? (getKey, getData) type reader interface { getKey(ver uint) string getData() string } type location struct { reader fileLocation string err os.Error } func (self *location) getKey(ver uint) string {...} func (self *location) getData() string {...} func NewReader(fileLocation string) *location { _location := new(location) _location.fileLocation = fileLocation return _location }

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  • LINQ-TO-XML not returning all value

    - by mmcglynn
    I am trying to get all values in the select. using item.Count shows the correct number of values, but only one .Value is returned from the loop. Why? Dim fooXML As XDocument = XDocument.Load(Server.MapPath("xml/foo.xml")) Dim query = _ From c In fooXML...<foobaryear> _ Select c...<event> For Each item In query Response.Write(item.Value) Next

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  • Does this have to be released?

    - by NextRev
    I've done a lot of research on when it's correct to release things, but it's all confusing to me. I think sometimes the Leaks program is off. Anyway... background is a UIImageView background.image = [UIImage imageNamed:@"greenbackground.png"]; Do I have to release background? I never alloced it and it's not set as a property, so I'm thinking no.

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  • Cannot have a qualifier in the select list while performing a JOIN w/ USING keyword.

    - by JuiceBerry123
    I am looking at a practice test that doesn't have explanations about the correct answers. The question I'm confused about basically asks why the following SQL statement can never work: SELECT oi.order_id, product_jd, order_date FROM order_items oi JOIN orders o USING(order_id); The answer it gave was: "The statement would not execute because the column part of the USING clause cannot have a qualifier in the SELECT list" Can someone elaborate on this? I am pretty stumped.

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  • c# Resize Function

    - by Tyler
    So my logic is flawed and I need a better and correct way to resize an image in my c# app I need a function similar to this setup public void ResizeImageForWeb(string OriginalFile, string NewFile, int MaxWidth, int MaxHeight, int Quality) { // Resize Code } Basically, I'm a web designer lost trying to programming a desktop app.

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  • How do I aggregate activerecord model data for a specific time period?

    - by gsiener
    I'm collecting data from a system every ~10s (this time difference varies due to communication time with networked devices). I'd like to calculate averages and sums of the stored values for this activerecord model on a daily basis. All records are stored in UTC. What's the correct way to sum and average values for, e.g., the previous day from midnight to midnight EST? I can do this in sql but don't know the "rails way" to make this calculation.

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  • Logical equality in C

    - by andrew cooke
    [It seems odd this doesn't exist, so apologies in advance if it's a duplicate] I want to test for logical equality in C. In other words, I want to know whether two values would be equal if both were converted in the normal way associated with logical expressions. In C99, I think that (bool)a == (bool)b gives what I want. Is that correct? What is the normal way of writing this in traditional C?

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