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

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Memory Optimization (Christer Ericson, GDC 2003)
http://realtimecollisiondetection.net/pubs/GDC03_Ericson_Memory_Optimization.ppt

Cache coherency primer (Fabian Giesen)
https://fgiesen.wordpress.com/2014/07/07/cache-coherency/

Code Clinic 2015: How to Write Code the Compiler Can Actually Optimize (Mike Acton)
http://gdcvault.com/play/1021866/Code-Clinic-2015-How-to

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#include <type_traits>
#include <tuple>
#include <iostream>

// Link: https://github.com/aeyakovenko/notes

//count arguments
//COUNT_ARGS :: ... -> Int
#define COUNT_ARGS(...) COUNT_ARGS_(,##__VA_ARGS__,6,5,4,3,2,1,0)
#define COUNT_ARGS_(z,a,b,c,d,e,f,cnt,...) cnt

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# based on code from http://trendystephen.blogspot.be/2008/01/rich-header.html
import sys
import struct

# I'm trying not to bury the magic number...
CHECKSUM_MASK = 0x536e6144 # DanS (actuall SnaD)
RICH_TEXT = 'Rich'
RICH_TEXT_LENGTH = len(RICH_TEXT)
PE_START = 0x3c
PE_FIELD_LENGTH = 4

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C++ source code snippets

Represent one byte

using Byte = std::uint8_t;

Represent a dynamic number of bytes

#include <vector>

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/* SMBLoris attack proof-of-concept
 * 
 * Copyright 2017 Hector Martin "marcan" <marcan@marcan.st>
 *
 * Licensed under the terms of the 2-clause BSD license.
 *
 * This is a proof of concept of a publicly disclosed vulnerability.
 * Please do not go around randomly DoSing people with it.
 *
 * Tips: do not use your local IP as source, or if you do, use iptables to block

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#include <windows.h>
#include <winternl.h>
#include <stdio.h>

#pragma comment(lib, "user32")
#pragma comment(lib, "gdi32")

typedef struct _LARGE_STRING {
    ULONG Length;
    ULONG MaximumLength:31;

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Error and Exception Handling Techniques

http://lambda-the-ultimate.org/node/3896#comment-58374

Reposting here for safe keeping.

Error Codes

One of the return values is the error. Use when the goal is to cover-your-ass by ensuring that error handling is possible, even though you know any error handling or recovery would clutter the happy-path and thus ensure programmers are reluctant to admit to their existence at all.

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/*
 * Random-Number Utilities (randutil)
 *     Addresses common issues with C++11 random number generation.
 *     Makes good seeding easier, and makes using RNGs easy while retaining
 *     all the power.
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 Melissa E. O'Neill
 *

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What is the Strict Aliasing Rule and Why do we care?

(OR Type Punning, Undefined Behavior and Alignment, Oh My!)

What is strict aliasing? First we will describe what is aliasing and then we can learn what being strict about it means.

In C and C++ aliasing has to do with what expression types we are allowed to access stored values through. In both C and C++ the standard specifies which expression types are allowed to alias which types. The compiler and optimizer are allowed to assume we follow the aliasing rules strictly, hence the term strict aliasing rule. If we attempt to access a value using a type not allowed it is classified as undefined behavior(UB). Once we have undefined behavior all bets are off, the results of our program are no longer reliable.

Unfortunately with strict aliasing violations, we will often obtain the results we expect, leaving the possibility the a future version of a compiler with a new optimization will break code we th