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Bryan O'Sullivan's blog
Blog Archives
Hoisted from someone else’s comments
Marc Ambinder comments on the peculiar cadence of the jacket blurbs for Douglas Feith’s new book, to which some wag responds with a suggestion for a similar endorsement. Feith’s book is perfectly rectangular. Its page numbers progress in a pleasing…
Posted in reading
The moral of this story holds in so many contexts
Snipped from a small mailing list. You can use fruit and vegetables’ as a voltaic battery but they could only power something like a small LED bulb, no way would there be enough power to charge an iPod 🙂 Depends…
Posted in slice-o-life
What to expect from the new binutils linker
I’ve been following Ian Lance Taylor’s updates on the status of gold, the new binutils linker, for a while, so when he announced that he’d added it to the binutils tree, I decided to make a little time to try…
Posted in linux, open source
Peruse popular Perl packages
For a little while, I’ve been curious about which of the packages people in the vast wasteland of CPAN actually use and care about. Here’s an attempt to answer that question with fifty popular Perl packages for your entertainment. Before…
Posted in open source
GHC’s performance with threads is impressive
Here’s a simple program I wrote on a whim tonight, to take a very basic look at GHC’s low-level threading performance. module Main where import Control.Applicative import Control.Concurrent.MVar import Control.Concurrent import Data.Time import System.Environment main = do mv <- newEmptyMVar…
Posted in haskell
The basics of applicative functors, put to practical work
Applicative functors are gorgeous and versatile creatures, but as is common in Haskell, they lack a little in documentation. The paper that Conor and Ross wrote introducing them is good, but dense. What if we were to skip all the…
Posted in haskell
LLVM for Fedora
I’ve just packaged up LLVM 2.1 for Fedora. It hasn’t hit the testing repository yet, but when it does, you’ll be able to install it in straightforward fashion: yum –enablerepo=testing install llvm llvm-devel llvm-docs Until the packages are pushed out…
Posted in open source
The Monad Squad
Tired of imperative programmers kicking sand in your face? Send some cut-out lambdas and a postal order for 5 frobs to haskell.org, and we’ll send you a handy-dandy poster of those famous superheroes, the Monad Squad! State helps functional programmers…
Posted in haskell
A new (well, to me) spam vector: google.com
This is, I must say, very clever. In my latest round of inbound spam, I’ve noticed that some senders have begun sending valid links to http://google.com/ in their messages. The technique they’re using is to obfuscate a target URL inside…
Posted in web
Phil Wadler to talk in San Francisco next week
POPL 08 takes place next week, so San Francisco will be flooded with an army of burly and menacing programming language researchers and type theorists. Kids, don’t say you haven’t been warned. On Wednesday evening, January 9, Phil Wadler will…
Posted in haskell
