leepike

--
-- Play a song and flash LEDs on alternate notes.
-- Lee Pike <lee pike @ gmail . com> (remove spaces)
-- See http://leepike.wordpress.com/?p=427
-- BSD3 License
-- 
-- Note timing issues: http://www.arduino.cc/en/Tutorial/PlayMelody
--

module CopilotSing where

paulsmith

// $ 6g echo.go && 6l -o echo echo.6
// $ ./echo
//
//  ~ in another terminal ~
//
// $ nc localhost 3540

package main

import (

jlongster

;; outlet code for implementing traditional macro expansion

;; macros

(define (expand form)
  (cond
   ((variable? form) form)
   ((literal? form) form)
   ((macro? (car form))
    (expand ((macro-function (car form)) form)))

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

digitaljhelms

Branching

Quick Legend

Description, Instructions, Notes

Instance	Branch

zpao

/** @jsx React.DOM */
var MyComponent = React.createClass({
  render: function() {
    // Defaults in case the props are undefined. We'll have a solution for this
    // soon that is less awkward.
    var perMinute = this.props.perMinute || '-';
    var perDay = this.props.perDay || '-';
    return (
      <div>
        <h3>Clickouts</h3>

DGivney

section .text
global _start

_start:
  xor eax, eax              ; init eax 0
  xor ebx, ebx              ; init ebx 0
  xor esi, esi              ; init esi 0
  jmp _socket               ; jmp to _socket

_socket_call:

rossant

"""
MIT License

Copyright (c) 2017 Cyrille Rossant

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is

aras-p

// Just before switching jobs:
// Add one of these.
// Preferably into the same commit where you do a large merge.
//
// This started as a tweet with a joke of "C++ pro-tip: #define private public",
// and then it quickly escalated into more and more evil suggestions.
// I've tried to capture interesting suggestions here.
//
// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_,
// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant,

southwolf

#include <string.h>
#include <ctype.h>
#include <SoftwareSerial.h>

// the Bluetooth Shield connects to Pin D9 & D10
SoftwareSerial bt(9,10);

const uint8_t req[5]  = {0x00, 0x01, 0x00, 0x11, 0x00};
const uint8_t cap[17] = {0x00, 0x0d, 0x00, 0x11, 0x01, 0xff, 0xff, 0xff, 0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x32};
const uint8_t ping[9] = {0x00, 0x05, 0x07, 0xd1, 0x00, 0xde, 0xad, 0xbe, 0xef};