Leland Batey lelandbatey

Problem

When compiling this[0] C++ file with Emscripten, the compiled javascript file produces incorrect output when run with node (using node v0.12.0 on all platforms). This is not "serious" code, it is a toy minified raytracer, as found here[1]. I have tried to find any information on the Emscripten website regarding less-than-compatible behavior this source file might be doing which makes it run incorrectly, but I have had no luck.

In attempting to narrow the problem, I also constructed a small program which seems to break in a similar way, which can be found here[6].

I come here hoping that it is simply an oversight by me in how this code is written or how I'm compiling it.

Steps to reproduce:

Taken from here: https://cooking.nytimes.com/recipes/10228-stir-fry-peppers-and-onions

Stir Fry Peppers and Onions

Ingredients

1 large onion

	# To run this file, change the value below where it says ".\sample.csv" to the
	# path to the CSV file you want to change. Then, to have this script write to
	# a new csv file, pipe it into the Out-File cmdlet. For example, you might run
	# this file (AFTER MODIFYING THE PATH TO THE INPUT FILE DOWN BELOW) with an
	# invocation like this:
	#
	# .\remove_lf.ps1 \| Out-File .\fixed_version.csv -encoding ASCII
	#
	# Note the option `-encoding ASCII` above. Leaving this option off might not
	# cause any problems, but it may also break the output in some way. See what

	#include <iostream>
	#include <map>
	#include <cmath>
	#include <vector>

	// Sieve of Eratosthenes
	//
	// This is a simple implementation of the Sieve of Eratosthenes, implemented in
	// C++. This is a port of the excellent and very terse implementation by David
	// Eppstein[0]. This port is meant to be a straightforward naive port of the

	#! /usr/bin/env python
	from __future__ import print_function
	import random
	import sys
	import os

	# This code reads like a basketball (it doesn't). In my defense, I wrote this a
	# long time ago, and I wrote it in one hazy evening out of rage just to spite
	# people who re-compress jpegs so aggressively. I publish this only because
	# there's some stuff I need to not forget (e.g. how to add grain to an image

	<script>
	var checkboxes = [];
	function getCheckboxStates() { return checkboxes.map(bx => !!bx.checked); };
	function saveCheckboxStates() {
	localStorage['boxStates'] = JSON.stringify(getCheckboxStates());
	}

	// Add a checkbox in front of every list item, save reference to each
	[].slice.call(document.getElementsByTagName('li')).forEach((li, index) => {
	var chkbx = document.createElement('input');

	#!/usr/bin/env python
	# -- coding: utf-8 --

	from __future__ import print_function

	class player:
	X = 'X'
	O = 'O'

	class Board(object):

	<!DOCTYPE html>
	<html lang="en">
	<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>

	<body style="margin: 0;">
	<canvas id='canvas' width='4000' height='2000'></canvas>
	</body>

	<script>
	// To run, download this file and serve it via some http server; I prefer


	// I implemented poisson disk selection from this paper: http://www.cs.ubc.ca/~rbridson/docs/bridson-siggraph07-poissondisk.pdf
	// This was very fun, I highly recommend it to anybody!

	function create_draw(ctx) {
	return {
	line: (start, end) => {
	let [sx, sy] = start;
	let [ex, ey] = end;
	ctx.beginPath();


	'''
	A toy example to calculate the probability of a mine existing on any particular square.

	Runs slowly and is organized like spaghetti, but it does currently work!

	Note that for this to work, it depends on a slightly modified defusedivision;
	inside defuse_division the _create_foothold function in game.py has to be
	modified to be public, instead of private like in the public version.