Richard Matthias rhm

Hello, visitors! If you want an updated version of this styleguide in repo form with tons of real-life examples… check out Trellisheets! https://github.com/trello/trellisheets

Trello CSS Guide

“I perfectly understand our CSS. I never have any issues with cascading rules. I never have to use !important or inline styles. Even though somebody else wrote this bit of CSS, I know exactly how it works and how to extend it. Fixes are easy! I have a hard time breaking our CSS. I know exactly where to put new CSS. We use all of our CSS and it’s pretty small overall. When I delete a template, I know the exact corresponding CSS file and I can delete it all at once. Nothing gets left behind.”

You often hear updog saying stuff like this. Who’s updog? Not much, who is up with you?

This is my little Christmas-break experiment trying to (among other things) reduce the amount of generated code for containers.

THIS CODE WILL CONTAIN BUGS AND IS ONLY PRESENTED AS AN EXAMPLE.

The C++ STL is still an undesirable library for many reasons I have extolled in the past. But it's also a good library. Demons lie in this here debate and I have no interest in revisiting it right now.

The goals that I have achieved with this approach are:

High-Performance Matrix Multiplication

This is a short post that explains how to write a high-performance matrix multiplication program on modern processors. In this tutorial I will use a single core of the Skylake-client CPU with AVX2, but the principles in this post also apply to other processors with different instruction sets (such as AVX512).

Intro

Matrix multiplication is a mathematical operation that defines the product of

	#pragma once

	#pragma warning(push)
	#pragma warning(disable:4996)

	#include <cassert>
	#include <memory>
	#include <vector>

	#pragma once
	#include <stdint.h>

	//fnv1a 32 and 64 bit hash functions
	// key is the data to hash, len is the size of the data (or how much of it to hash against)
	// code license: public domain or equivalent
	// post: https://notes.underscorediscovery.com/constexpr-fnv1a/

	inline const uint32_t hash_32_fnv1a(const void* key, const uint32_t len) {