avsm

# Edit this for your own project dependencies
OPAM_DEPENDS="ocamlfind ounit re"

case "$OCAML_VERSION,$OPAM_VERSION" in
3.12.1,1.0.0) ppa=avsm/ocaml312+opam10 ;;
3.12.1,1.1.0) ppa=avsm/ocaml312+opam11 ;;
4.00.1,1.0.0) ppa=avsm/ocaml40+opam10 ;;
4.00.1,1.1.0) ppa=avsm/ocaml40+opam11 ;;
4.01.0,1.0.0) ppa=avsm/ocaml41+opam10 ;;
4.01.0,1.1.0) ppa=avsm/ocaml41+opam11 ;;

dpwright

Monadic operations in C++

This began as a further attempt to implement the Maybe monad in C++, but quickly spiralled out of control and now includes an implementation of the List monad as well (using std::list!). This is really for my own amusement rather than to try and do anything useful with them. It also gave me an excuse to try out C++ 11 lambda functions for the first time.

My original implementation defined a macro called MBind which caused a number of problems -- thankfully [PJayB][pjayb] managed to find a way around that so

Sjors

#!/usr/bin/env ruby
require 'open-uri'
require 'JSON'
require 'digest/sha2'
require 'pry'
require 'bigdecimal'
require 'bitcoin' # Because I need to cheat every now and then

# Usage:
# gem install pry json ffi ruby-bitcoin

NicolasT

type z
type 'a s

(* Sadly enough, without kind restrictions, this still allows nonsense types like *)
type nonsense = int s
(* GHC 7.6 supports this (lifting types to kinds & kind constraints) ;-) *)

type (_, _) llist =
  | Nil : (z, 'a) llist
  | Cons : ('a * ('l, 'a) llist) -> ('l s, 'a) llist

Carreau

zmq = require("zmq")
fs = require("fs")

var config = JSON.parse(fs.readFileSync(process.argv[2]))

var connexion = "tcp://"+config.ip+":"
var shell_conn = connexion+config.shell_port
var pub_conn = connexion+config.iopub_port
var hb_conn = connexion+config.hb_port

P4

Windows Registry Editor Version 5.00
; Default color scheme
; for Windows command prompt.

; Values stored as 00-BB-GG-RR
[HKEY_CURRENT_USER\Console]
; BLACK DGRAY
"ColorTable00"=dword:00000000
"ColorTable08"=dword:00808080
; BLUE LBLUE

jollytoad

function readFile(file) {
    var reader = new FileReader();
    var deferred = $.Deferred();

    reader.onload = function(event) {
        deferred.resolve(event.target.result);
    };

    reader.onerror = function() {
        deferred.reject(this);

gavinandresen

# Raw transaction API example work-through
# Send coins to a 2-of-3 multisig, then spend them.
#
# For this example, I'm using these three keypairs (public/private)
# 0491bba2510912a5bd37da1fb5b1673010e43d2c6d812c514e91bfa9f2eb129e1c183329db55bd868e209aac2fbc02cb33d98fe74bf23f0c235d6126b1d8334f86 / 5JaTXbAUmfPYZFRwrYaALK48fN6sFJp4rHqq2QSXs8ucfpE4yQU
# 04865c40293a680cb9c020e7b1e106d8c1916d3cef99aa431a56d253e69256dac09ef122b1a986818a7cb624532f062c1d1f8722084861c5c3291ccffef4ec6874 / 5Jb7fCeh1Wtm4yBBg3q3XbT6B525i17kVhy3vMC9AqfR6FH2qGk
# 048d2455d2403e08708fc1f556002f1b6cd83f992d085097f9974ab08a28838f07896fbab08f39495e15fa6fad6edbfb1e754e35fa1c7844c41f322a1863d46213 / 5JFjmGo5Fww9p8gvx48qBYDJNAzR9pmH5S389axMtDyPT8ddqmw

# First: combine the three keys into a multisig address:
./bitcoind createmultisig 2 '["0491bba2510912a5bd37da1fb5b1673010e43d2c6d812c514e91bfa9f2eb129e1c183329db55bd868e209aac2fbc02cb33d98fe74bf23f0c235d6126b1d8334f86","04865c40293a680cb9c020e7b1e106d8c1916d3cef99aa431a56d253e69256dac09ef122b1a9

utstikkar

# turtle honeycomb
# Lasse Kosiol
# 1.9.2012
# python workshop opentechschool berlin

import turtle
from random import randint

size = 20
circles = 20

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD