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• Permutation of Strings in C++

  - by cam

  I'm looking for just a simple method for permutating strings/integers in C++. I can easily do it in C#, but I'm just learning C++ and can't seem to find the right methods. Can someone show me a simple example that will find all permutations of an integer? And then the exact same for a string?

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• How should I grab pairs from a list in python?

  - by tomaski

  Say I have a list that looks like this: ['item1', 'item2', 'item3', 'item4', 'item5', 'item6', 'item7', 'item8', 'item9', 'item10'] Using Python, how would I grab pairs from it, where each item is included in a pair with both the item before and after it? ['item1', 'item2'] ['item2', 'item3'] ['item3', 'item4'] ['item4', 'item5'] ['item5', 'item6'] ['item6', 'item7'] ['item7', 'item8'] ['item8', 'item9'] ['item9', 'item10'] Seems like something i could hack together, but I'm wondering if someone has an elegant solution they've used before?

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• negative color with glBlendFunc() ?

  - by Newbie

  i want my lines to be drawn with negative color (taken from the screen under the line), i just didnt understand how the blending works, looked at docs etc, tested 50 combinations and so on. started to think its not possible at all... could someone just give the two values, im tired of thinking how it works. thanks,

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• CSS - Rollover one element, and make another element visible.

  - by Spines

  In CSS, is it possible that when I rollover one element, I make another element visible? I have an icon, and when someone mouses over it, I want it to make visible a text element that describes what the icon does.

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• Get Degrees (0-360) from One LatLng to Another in JavaScript

  - by Kirk

  Can someone help me fill in the blanks with native JavaScript? function getHeading(lat1, lon1, lat2, lon2) { // Do cool things with math here return heading; // Should be a number between 0 and 360 } I've been messing around with this for a long time and can't seem to get my code to work right.

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• [VS2008] - Run Add-in from PrebuildEvent

  - by JBL

  I'm writing an VS 2008 add-in to synchronize Setup project Version with startup project assembly version. It works fine. But I was wondering if it was possible to call add-in from the Prebuild Event of my setup project. It works fine by command line window, but I didn't find any syntax to make it work in prebuildEvent. Is Someone has an idea ? Thanks

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• Why subtract a value from itself (x - x) in Python?

  - by endolith

  In NumPy functions, there are often initial lines that do checking of variable types, forcing them to be certain types, etc. Can someone explain the point of these lines? What does subtracting a value from itself do? t,w = asarray(t), asarray(duty) w = asarray(w + (t-t)) t = asarray(t + (w-w))

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• Selecting favourites from DB rails 3

  - by Richlewis

  I have a small app which has Users, Recipes, Ingredients and preparation models A user has many recipes, recipes belong to user and ingredients/preparation belongs to recipes. Now a user can view all recipes but I would like the option to add the particular recipe to a favourites list. Would I need to set a new DB to hold this and then link by associations or could I add a column to the recipe model called fav for example? Im looking for the best practice here or if someone has done this before and can offer any advice that would be appreciated

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• What are the differences between various threading synchronization options in C#?

  - by user38834

  Can someone explain the difference between: lock (someobject) {} Using Mutex Using Semaphore Using Monitor Using Other .Net synchronization classes I just can't figure it out. It seems to me the first two are the same?

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• What is the different between C# and .Net?

  - by Bopha

  Hello, May I know what is the different between C# and .Net? because when I think of C#, right away I would say is a .Net, but when I seearch for job, posts sometimes say require candidate to have C# and .Net experience. Can someone give me little of explaination? thanks..

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• Need a scenario where would fail Array.ConstrainedCopy()

  - by Sir Psycho

  Hi, Just playing around with some of the APIs in .NET and I can't seem to find a way to cause Array.ConstrainedCopy() fail. According to MSDN, it's treated as an atomic operation. If it fails during the copy, the entire call fails resulting in no elements being copied as opposed to its Array.Copy() counterpart. Can someone demonstrate this or tell me how to do this?

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• How to remove cookies using CookieManager for a specific domain?

  - by Pentium10

  I know about the existince of CookieManager, but how do I remove cookies of a domain only? Can someone help me with some code fragment?

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• LINQ to SQL selecting fields

  - by user3686904

  I am trying to populate more columns in the query below, could someone assist me? QUERY: var query = from r in SQLresults.AsEnumerable() group r by r.Field<string>("COLUMN_ONE") into groupedTable select new { c1 = groupedTable.Key, c2 = groupedTable.Sum(s => s.Field<decimal>("COLUMN_TWO")), }; How could I get a column named COLUMN_THREE in this query ? Thanks in advance

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• Feature panel hover changer effect

  - by user1519157

  Haven't seen this before so hopefully someone has a easy solve, I have a 3 feature panel divs side by side, what I want happen is the 1st panel has a "hover" class added so I can change the background etc and then on a timed interval the hover class jumps to the next panel then the next panel then back to the start on a loop. Also on a side note can you keep the code in mind to be able to add more then 3 feature divs so you could have for example 6 or more or less etc.

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• sql: self-joins explained

  - by every_answer_gets_a_point

  i dont understand the need for self-joins. can someone please explain them to me? a simple example would be very helpful

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• How to connect ejb to hibernate in eclipse and glassfish server?

  - by agiles

  I am newer to ejb and hibernate and don't have any idea to how to link or connect those technologies mentioned above. I have just created individual module for ejb, hibernate and servlet. but I need to pass the data from servlet to ejb and then ejb to hibernate and store into MySql database. Problem for me, how to connect ejb to hibernate. I tried some ways and it couldn't work for me. Please someone help me. Thank you

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• Matching part of website with a regexp.

  - by richardverbruggen

  With a cURL request I load a complete website into a variable: $buffer. In the source of the site there are two labels in between which my relevant content is placed. ****** bunch of code ******* <!-- InstanceBeginEditable name="Kopij" --> this part I want to store in a match <!-- InstanceEndEditable --> ****** bunch of code ******* I've been messing around with preg_match and its regexp. Can someone try to help me? Thanx in advance.

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• mysql select help

  - by user344766

  Hi I have a table that looks like this id : productid : featureid and would have the following data: (1, 1, 16) (2, 1, 21) (3, 1, 25) (4, 2, 16) (5, 2, 21) (6, 2, 27) where featureid is a foreign key to another table. I need to select products that have both featureids of 16 and 25, in which case productid 1 but not productid 2 Can someone show me an example of how to format this query.

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• iPhone SDK: Trying out 4.0

  - by dev

  I am thinking of buying a new iTouch to try out 4.0 multi-tasking. Can someone provide a link that describes how I get iPhone OS 4.0 on the device? Thanks in advance.

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• SQL Server Query with "ELSE:"

  - by Mike D

  I have various VB6 projects I'm maintaining with some of the queries being passed to the server having "ELSE:" with the colon used in case statements. I'm wondering can someone tell me what the **ll the colon is used for? It causes errors in SQL2005 and greater, but SQL2000 works with no complaints. I'd like to just remove it from the code & re-compile, but I'm afraid it'll break 10 other things in the application.. Thanks in advance...

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• How to make an unit test always pass?

  - by brain_damage

  Let's assume someone has to write a solution to a problem and I have to test his solution with some tests. Is it possible (maybe with reflections or something) his program to pass all my tests, but to have nothing in common with the real solution to the problem?

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• Saving data from another model (my own log system)

  - by user331321

  Hi! I´m trying to write a log system for my CakePHP intranet. What i need is to store de username/datetime whene someone tryes to login. My login code is on the clients_controller and i need to store the data on a model called log (i have the model, controller, view... but they are not related) how can i achive that? thank you

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• jquery quering the database

  - by mazhar

  the thing is that there are number of items in the html select list,what i want to do is to click on any of the item, then query the database on the id of that item. retrieve the value and then display that in the textbox, how would i query the database? I would really appreciate that if someone provides the code sample for querying the database

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• Remove Substring from NSstring

  - by user3037815

  I see so many solution , but none of them was matching my problem . As i am new to iOS development . I have a String abc/_api/web/GetFolderByServerRelativeUrl('Documents/Root Folder/Level 1/Level 2/Level 1-1/Level 1/')/folders. I want to remove Remove Substring after last "/" for example my new string should look like this. abc/_api/web/GetFolderByServerRelativeUrl('Documents/Root Folder/Level 1/Level 2/Level 1-1/Level 1/) Can someone suggest me the best way to achieve this , thanks ,

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• how does array_diff work?

  - by SpawnCxy

  I just wonder how array_diff() works.And obviously it couldn't work as follows function array_diff($arraya, $arrayb) { $diffs = array(); foreach ($arraya as $keya => $valuea) { foreach ($arrayb as $valueb) { if ($valuea == $valueb) { break; } $diffs[$keya]=$valuea; } } return $diffs; } //couldn't be worse than this Hope someone can show me some better solution. Thanks.

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