stantona

      UserData:
        Fn::Base64: |
          #!/bin/bash
          AWS_AVAIL_ZONE="$(curl http://169.254.169.254/latest/meta-data/placement/availability-zone)"
          AWS_INSTANCE_ID="$(curl http://169.254.169.254/latest/meta-data/instance-id)"
          AWS_REGION="$(echo "${AWS_AVAIL_ZONE}" | sed 's/[a-z]$//')"
          VOLUME_IDS="$(aws ec2 describe-instances --region $AWS_REGION --instance-id $AWS_INSTANCE_ID --output text --query Reservations[0].Instances[0].BlockDeviceMappings[*].Ebs.VolumeId)"

          for TAG_DEF in $(aws ec2 describe-tags --filter="Name=resource-id,Values=${AWS_INSTANCE_ID}" --region "${AWS_REGION}" | jq .'Tags | .[] | "Name=\(.Key),Value=\(.Value)"'); do
            aws ec2 create-tags --dry-run --resources "${VOLUME_IDS//$'\t'/ }" --region "${AWS_REGION}" --tags "${TAG_DEF}"

stantona

(define (pascal-value row elem)
  (cond ((= row 1) 1)
        ((= elem 1) 1)
        ((= row elem) 1)
        (else (+ (pascal-value (- row 1) (- elem 1)) 
                 (pascal-value (- row 1) elem)))))

stantona

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

stantona

#ifndef __dbg_h__
#define __dbg_h__

#include <stdio.h>
#include <errno.h>
#include <string.h>

#ifdef NDEBUG
#define debug(M, ...)
#else

stantona

#ifndef __dbg_h__
#define __dbg_h__

#include <stdio.h>
#include <errno.h>
#include <string.h>

#ifdef NDEBUG
#define debug(M, ...)
#else

stantona

#ifndef __dbg_h__
#define __dbg_h__

#include <stdio.h>
#include <errno.h>
#include <string.h>

#ifdef NDEBUG
#define debug(M, ...)
#else

stantona

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>

void die(const char *message)
{
  if(errno) {
    perror(message);
  } else {

stantona

#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>

#define MAX_DATA 512
#define MAX_ROWS 100

struct Address {

stantona

-module(process_exc).
-export([start/1, proc/1]).

start(M) ->
  N1 = spawn(process_exc, proc, [M]),
  N2 = spawn(process_exc, proc, [M]),
  N1 ! {N2, ping}.

proc(M) ->
  proc(M, 0).

stantona

-module(ring).
-export([start/2, forward_to/1]).

start(Number, Iterations) ->
  Pid = create_processes(Number-1),
  Pid ! msg,
  forward_to(Pid, Iterations, 0).

create_processes(Number) ->
  io:format("spawning ~p processes...~n", [Number]),