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AES Encryption for an NSString on the iPhone

...ethod which takes two NSString instances, one being the message to encrypt and the other being a 'passcode' to encrypt it with - I suspect I'd have to generate the encryption key with the passcode, in a way that can be reversed if the passcode is supplied with the encrypted data. The method should t...
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Completely uninstall PostgreSQL 9.0.4 from Mac OSX Lion?

... Snow Leopard) however, there are two major differences. I'm running Lion and I'm trying to uninstall PostgreSQL 9.0.4. I've looked at the last question and the link that it referenced, but I did not find a file called "uninstall-postgresql" when I run this command: ...
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Thin web server: `start_tcp_server': no acceptor (RuntimeError) after git branch checkout

A Rails 3.2.0 app, working fine with Thin web server, both locally and on Heroku cedar stack. 9 Answers ...
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Is std::unique_ptr required to know the full definition of T?

... Adopted from here. Most templates in the C++ standard library require that they be instantiated with complete types. However shared_ptr and unique_ptr are partial exceptions. Some, but not all of their members can be instantiated with incomplete types. The motivation for ...
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How to line-break from css, without using ?

... same HTML structure, you must have something to distinguish between Hello and How are you. I suggest using spans that you will then display as blocks (just like a <div> actually). p span { display: block; } <p><span>hello</span><span>How are you</span>...
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Can You Get A Users Local LAN IP Address Via JavaScript?

I know the initial reaction to this question is "no" and "it can't be done" and "you shouldn't need it, you are doing something wrong". What I'm trying to do is get the users LAN IP address, and display it on the web page. Why? Because that's what the page I'm working on is all about, showing as muc...
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Parallelize Bash script with maximum number of processes

...ution. Except, since I'm paranoid, I always like to use find [...] -print0 and xargs -0. – amphetamachine Mar 22 '10 at 2:31 7 ...
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CSS to stop text wrapping under image

... Since this question is gaining lots of views and this was the accepted answer, I felt the need to add the following disclaimer: This answer was specific to the OP's question (Which had the width set in the examples). While it works, it requires you to have a width ...
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Merging objects (associative arrays)

What’s the best/standard way of merging two associative arrays in JavaScript? Does everyone just do it by rolling their own for loop? ...
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Linux command to print directory structure in the form of a tree

Is there any linux command that I can call from a Bash script that will print the directory structure in the form of a tree, e.g., ...