NYC, Politics, and Tech
Here’s the usual way I setup my main() for unit tests in unit_t.cpp. You can run either the entire test suite or specify an individual test on the command line:
$ ./unit_t TestWithin::testWithinDouble
Here’s the code:
Continue reading “C++ unit test”
I installed iOS 4.2 on my iPhone — it went smoothly. Best of all I activated “Find my iPhone”. Clear directions at http://www.apple.com/iphone/find-my-iphone-setup/
My favorite interface for reading RSS feeds is feedly which uses Google reader to aggregate the feeds but wraps it up in a nice magazine style presentation. It’s an extension for Chrome, Safari and Firefox.
Here’s a nice tutorial on getting it setup.
I tried Seashore to do some very simple image. It was perfect for my simple usage and looks to be able to handle more:
Seashore is a free, open-source image editor for built entirely in Cocoa. It features advanced tools like multiple layers and alpha channel editing, alongside basic tools like gradients, textures, text (with subpixel rendering) and brushes
I found myself having to write a bunch of range checking code like this:
if (val < 0.0 || val > 1.0)
val = 1.0;
so I wrote this simple function.
Continue reading “C++ test for within”
I’d been surprised about Apple emphasizing FaceTime in advertising. I don’t think it’s very compelling — I don’t know enough people with an iPhone4, I rarely have a Wi-Fi connection when I want to talk to them, and I don’t find video chats very compelling anyway. After all, how often do you video iChat or Skype?
Anyway, TechCrunch had an interesting perspective about it when they compared it to a scene from Mad Men (official site. They are getting people to make an emotional connection with the iPhone rather then the analytical one of feature X vs. feature Y.
A functor that reverses a pair: first becomes second,
second becomes first. Useful for switching
from a map to another map (or multimap in this example) where
the value becomes the key and the key the value.
std::map<std::string, int> m;
std::multimap<int,std::string> m2;
m["a"] = 0;
m["b"] = 1;
m["c"] = 0;
std::transform (m.begin(), m.end(), std::inserter (m2, m2.begin()),
pair_switch());
And the actual code:
template<class PairType>
struct pair_switcher : public std::unary_function<PairType, std::pair<a,b>
{
typedef std::pair result_type;
typedef PairType argument_type;
result_type operator()(const argument_type &p) const
{
return result_type (p.second, p.first);
}
};
Update to 3.0 went pretty smoothly. I’m having some problem with images (added how to fix below)
$ cd ~/Desktop/wp-backup $ ./backup
$ cd ~/Desktop/src/downloads/pkgs $ curl -O http://wordpress.org/latest.tar.gz $ mv latest.tar.gz wordpress-3.0.tgz
$ cd /Library/Webserver/Documents $ mv wp-admin wp-includes ~/tmp $ tar xzvf ~/Desktop/src/downloads/pgks/wordpress-3.0.tgz $ chown -R _www:_www .
$ cd /Library/Webserver/Documents $ rm wp-content/blogs.hp
RewriteCond %{REQUEST_URI} !.*wp-content/plugins.*
RewriteRule ^(.*/)?files/(.*) wp-includes/ms-files.php?file=$2 [L]
I’m starting to do the upgrade from WPMU to WordPress 3.0 today. Important Things You Should Know Before Upgrading to WordPress 3.0:
WordPress MU has been merged into regular WP, which means whether or not you need multiple blogs (sites now) you will download it from the same place (http://wordpress.org/download/).
From NY Times is this article Smarter Than You Think – I.B.M.’s Supercomputer Challenges ‘Jeopardy!’ Champions – NYTimes.com about how IBM has built a machine that does pretty well playing Jeopardy.
Neither, as it turned out. Both were beaten to the buzzer by the third combatant: Watson, a supercomputer.
For the last three years, I.B.M. scientists have been developing what they expect will be the world’s most advanced “question answering” machine, able to understand a question posed in everyday human elocution — “natural language,” as computer scientists call it — and respond with a precise, factual answer.
Pete Ware 