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//2014-02-09 jorge@jorgechamorro.com
//Cross-function var manipulation

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


void uno () {
 char* b= (char*) &b;
 while (strncmp("Ehh", b, 3)) b++;

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//2014-02-09 jorge@jorgechamorro.com
//stack frame garbage

#include <stdio.h>

void uno () {
 char a[18]= "GeorgeOfTheJungle";
}

void dos () {

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//2014-02-09 jorge@jorgechamorro.com
//Manipulate the stack frame return address

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


void uno () {
 char** r= (char**) &r+2;
 while (**r != '\x90') (*r)++;

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//2014-02-10 jorge@jorgechamorro.com     happy numbers in C

#include<stdio.h>

unsigned sumaCuadrados (unsigned n) {
  unsigned d, r= 0;
  while (n) d= n % 10, r+= d*d, n/= 10;
  return r;
}

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//2014-02-10 jorge@jorgechamorro.com     concise happy numbers JavaScript

function happy (n) {
 var past= [];
 while (n= [].reduce.call(n.toString(), function (a,n) { return a+n*n }, 0))
   if (n === 1) return 1; else if (past.indexOf(n) >= 0) return 0; else past.push(n);
}

for (var i=0 ; i<=100 ; ++i) happy(i) && console.log(i);

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//2014-02-10 jorge@jorgechamorro.com   Happy Numbers JavaScript

function sumaCuadrados (n) {
  var d, r= 0;
  while (n) n-= (d= n % 10), r+= d*d, n/= 10;
  return r;
}

function isHappy (n) {
   while (n && n!=1 && n!=4 && n!=16 && n!=37 && n!=58 && n!=89 && n!=145 && n!=42 && n!=20)

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//2014-02-10 jorge@jorgechamorro.com     happy numbers

String.prototype.reduce= [].reduce;
Array.prototype.has= function has (n) { return this.indexOf(n) >= 0 };
Array.prototype.times= function (f,i) { for (i= this[0] ; i<=this[1] ; i++) f(i) };

function happy (n) {
  var past= [];
  while (1) {
    if ((n= n.toString().reduce(function(n,v){ return n+v*v },0)) === 1) return 1;

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/*!
	multiline
	Multiline strings in JavaScript
	https://github.com/sindresorhus/multiline
	by Sindre Sorhus
	MIT License
*/
(function () {
	'use strict';

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var fs = require("fs");
var util = require("util");

function walkSync(filename, cb) {
  try {
    var stat = fs.lstatSync(filename);
    if(stat.isDirectory()) {
      try {
        if(cb(null, filename, stat)) {
          var files = fs.readdirSync(filename);

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setTimeout(function () {
  t= Date.now()-t;
  STOP= 1;
  console.log(["ctr: ",ctr, ", t:", t, "ms -> ", (ctr/t).toFixed(2), "KHz"].join(''));
}, 2e3);

var ctr= 0;
var STOP= 0;
var t= Date.now()+ 2;
while (t > Date.now()) ; //get in sync with clock