AKMA’s Random Thoughts

You might consider asking Maria Benet. She's just returned from London and other towns from which she was blogging regularly.

(http://www.ashladle.org/)

Here's a list of a few free wifi hotspots (scroll to the bottom) http://www.wififreespot.com/europe.html
and here's a searchable directory of commercial and free hotspots: http://www.hotspot-locations.com/index.php and in warchalking mode Consume the News (http://consume.net/index2.php) has a node map. (And congratulations on the path to profship!)

hey akma,

brighton is pretty much wifi'd up - mail me if you want specific details - be good to hook up when you're over here too - send me an email maybe?

good chatting to you on irc the other night...

Pete.

Being able to understand that basic idea opens up a vast amount of power that can be used and abused, and we're going to look at a few of the better ways to deal with it in this article.

This back and forth is an important concept to understand in C programming, especially on the Mac's RISC architecture. Almost every variable you work with can be represented in 32 bits of memory: thirty-two 1s and 0s define the data that a simple variable can hold. There are exceptions, like on the new 64-bit G5s and in the 128-bit world of AltiVec

We can see an example of this in our code we've written so far. In each function's block, we declare variables that hold our data. When each function ends, the variables within are disposed of, and the space they were using is given back to the computer to use. The variables live in the blocks of conditionals and loops we write, but they don't cascade into functions we call, because those aren't sub-blocks, but different sections of code entirely. Every variable we've written has a well-defined lifetime of one function.