chadbrewbaker

Guest Thomas Dullien

https://twitter.com/halvarflake

https://optimyze.cloud/

• Ofensive security is understanding large scale legacy systems.
• Whole stack analysis required.
• Tool built for Microsoft patch analysis (bindiff) is useful for seeing compiler changes
• Weird machines, exploitability, and provable unexploitability

jdarpinian

///bin/true;COMPILER_OPTIONS="-g -Wall -Wextra --std=c99 -O1 -fsanitize=address,undefined";THIS_FILE="$(cd "$(dirname "$0")"; pwd -P)/$(basename "$0")";OUT_FILE="/tmp/build-cache/$THIS_FILE";mkdir -p "$(dirname "$OUT_FILE")";test "$THIS_FILE" -ot "$OUT_FILE" || $(which clang || which gcc) $COMPILER_OPTIONS -xc "$THIS_FILE" -o "$OUT_FILE" || exit;exec "$OUT_FILE" "$@"
#include <stdio.h>

int main() {
  printf("Hello world!\n");
  return 0;
}

chrisdone

{-# LANGUAGE OverloadedStrings #-}
{-# OPTIONS_GHC -Wall #-}

-- Set your font to a monospace font which makes this character the same as the line-height: │
--
-- Otherwise, you'll see an ugly gap between connected lines if the
-- line-height of the font is high.
--
-- Example fonts:
--

ciamarro

var a = document.querySelectorAll('input[type=radio]');
for (var i=0; i<a.length; i++)
    // from https://stackoverflow.com/a/18066088/8148848
  a[i].checked = ( (Math.random()*10) > 5) ? true : false;

nikitakit

"""
Beam decoder for tensorflow

Sample usage:

```
from tf_beam_decoder import  beam_decoder

decoded_sparse, decoded_logprobs = beam_decoder(
    cell=cell,

lib.rs

#![feature(question_mark)]

use std::{cmp, ops};
use std::cell::Cell;

/// The condition graph.
///
/// Each edge represents an outlives relation between two regions.
pub struct Graph {
    /// The nodes.

order_book.ipynb

tartakynov

import numpy as np
import pylab as pl
from numpy import fft
    
def fourierExtrapolation(x, n_predict):
    n = x.size
    n_harm = 10                     # number of harmonics in model
    t = np.arange(0, n)
    p = np.polyfit(t, x, 1)         # find linear trend in x
    x_notrend = x - p[0] * t        # detrended x

Wunkolo

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <math.h>
#include <string>

#include <initializer_list>
#include <thread>
#include <chrono>

lukechampine

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<sys/mman.h>
typedef void V;typedef int I;typedef double F;typedef unsigned char C,*S;typedef long L;
#define O           printf
#define R           return
#define I(a...)     if(a)
#define W(a...)     while(a)