juanplopes

def gcd(a,b):
    if b==0: return (1, 0)
    q = a/b
    x,y = gcd(b, a-q*b)
    return (y, x-q*y)
    
def inverse(a, b):
    x,y = gcd(a,b)
    return (x if x > 0 else x+b)
   

jaygooby

#!/bin/sh
#
# Copied from http://forums.dropbox.com/topic.php?id=38529#post-414344
# Modified by jay@gooby.org (@jaygooby on Twitter)

### BEGIN INIT INFO
# Provides: dropbox
# Required-Start: $local_fs $remote_fs $network $syslog $named
# Required-Stop: $local_fs $remote_fs $network $syslog $named
# Default-Start: 2 3 4 5

laanwj

{
  "path":"/home/foo/icons/",
  "domain":"example.com",
  "icons":[
      {"host":"aaa.example.com", "icon":"red.png"},
      {"host":"bbb.example.com", "icon":"green.png"},
      {"host":"ccc.example.com", "icon":"yellow.png"},
      {"host":"ddd.example.com", "icon":"orange.png"},
      {"host":"eee.example.com", "icon":"blue.png"},
      {"host":"fff.example.com", "icon":"cyan.png"},

klalle

/*
 Reads voltage and power from China-style energy meter. 
 Collecting data by eavesdropping on the MOSI-line (master in slave out) 
 between the energy monitoring chip (ECH1560) and the main processor*/
 
const int CLKPin = 2; // Pin connected to CLK (D2 & INT0)
const int MISOPin = 5;  // Pin connected to MISO (D5)

//All variables that is changed in the interrupt function must be volatile to make sure changes are saved. 
volatile int Ba = 0;   //Store MISO-byte 1

alex

Guide to how fucked is SSL?

Thanks to Jacob Kaplan-Moss, Donald Stufft, David Reid, Allen Short, Zain Memon, and Chris Armstrong for review.

This is a guide for technical individuals to understand in what circumstances SSL communications are secure against an observer-in-the-middle (for all intents and purposes: the NSA).

DavidVaini

package main

import (
	"log"
	"math"
)

func Round(val float64, roundOn float64, places int ) (newVal float64) {
	var round float64
	pow := math.Pow(10, float64(places))

henrik

1. Your class can be no longer than 100 lines of code.
2. Your methods can be no longer than five lines of code.
3. You can pass no more than four parameters and you can’t just make it one big hash.
4. When a call comes into your Rails controller, you can only instantiate one object to do whatever it is that needs to be done. And your view can only know about one instance variable.

You can break these rules if you can talk your pair into agreeing with you.

vitex

This script modifies the Haserl 0.9.29 distribution so it works with LuaJIT 2.0 as well as Lua 5.1. The script takes a single argument that is the path to a LuaJIT / Lua distribution directory in which library and executable files have been built. A typical usage is

    ./build-haserl-luajit.sh /usr/local/src/LuaJIT-2.0.0/

The script patches configure.ac, builds Haserl, and executes a CGI script to verify that LuaJIT / Lua is working within Haserl.

The LuaJIT distribution builds both .so and .a libraries; this script always uses the .a library so the Haserl executable contains an embedded copy of LuaJIT. If you prefer to link dynamically to LuaJIT, modify the script to change

    [ LIBS="-Wl,-Bstatic -l$LUALIB -Wl,-Bdynamic $LIBS" ]

kdzwinel

function getTrilateration(position1, position2, position3) {
    var xa = position1.x;
    var ya = position1.y;
    var xb = position2.x;
    var yb = position2.y;
    var xc = position3.x;
    var yc = position3.y;
    var ra = position1.distance;
    var rb = position2.distance;
    var rc = position3.distance;

dergachev

TLDR: I now add the following snippet to all my Dockerfiles:

# If host is running squid-deb-proxy on port 8000, populate /etc/apt/apt.conf.d/30proxy
# By default, squid-deb-proxy 403s unknown sources, so apt shouldn't proxy ppa.launchpad.net
RUN route -n | awk '/^0.0.0.0/ {print $2}' > /tmp/host_ip.txt
RUN echo "HEAD /" | nc `cat /tmp/host_ip.txt` 8000 | grep squid-deb-proxy \
  && (echo "Acquire::http::Proxy \"http://$(cat /tmp/host_ip.txt):8000\";" > /etc/apt/apt.conf.d/30proxy) \
  && (echo "Acquire::http::Proxy::ppa.launchpad.net DIRECT;" >> /etc/apt/apt.conf.d/30proxy) \
  || echo "No squid-deb-proxy detected on docker host"