rain-1

#lang racket

;; this is a stand alone simple version of the closure conversion part of the hoist pass from the tarot compiler
;; see https://rain-1.github.io/scheme for more.

(require data/queue)

;; closure conversion for lambda calculus
;;
;; the input language is:

troughton

import Swift

print("Hello")

struct Position : Hashable {
    let x : Int
    let y : Int
    
    var hashValue: Int {
        return 31 &* x &+ y

sgraham

// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// WARNING: This file is machine generated by fidlgen_js.

/**
 * @enum {number}
 */
const Blorp = {

KapiX

These patches are for qtwebengine-everywhere-src-5.12.3.tar.xz, SHA256: 3ff3bac12d75aa0f3fd993bb7077fe411f7b0e6a3993af6f8b039d48e3dc4317

Linking stage for QtWebEngineCore requires 10+GB of RAM :) (debug build)

Additional stuff needed:

Fixed libxslt.pc (non-packaged/develop/lib/pkgconfig) - qmake checks if directories in .pc files exist and will fail with some libs if libxslt was built with libxml2-2.6.2 and libxml2 was later updated to let's say libxml2-2.9.9, libxslt.pc will contain -L with non-existent directory (because it was not rebuilt with newer libxml2) Custom .pc file fixes this.

nadavrot

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

pthariensflame

impl Trait is Always Existential

Recently, Rust 1.26 was released, and with it came stable access to a heavily desired feature: impl Trait. For those unfamiliar, impl Trait lets you write something like this:

fn foo<'a, A, B>(x: &'a mut A) -> impl Bar<'a, B> { ... }

and have it be translated to something like this:

dockimbel

Red [
	Title:   "Red Android bridge demo"
	Author:  "Nenad Rakocevic"
	File: 	 %eval2.red
	Config:	 [type: 'dll libRed?: no libRedRT?: yes export-ABI: 'cdecl]
	Tabs:	 4
	Needs:	'View
	Rights:  "Copyright (C) 2013-2017 Nenad Rakocevic. All rights reserved."
	License: {
		Distributed under the Boost Software License, Version 1.0.

dgruss

#include <signal.h>
#include <setjmp.h>
#include <stdio.h>
#include <execinfo.h>
static void unblock_signal(int signum __attribute__((__unused__)))
{
  sigset_t sigs;
  sigemptyset(&sigs);
  sigaddset(&sigs, signum);
  sigprocmask(SIG_UNBLOCK, &sigs, NULL);

jedi4ever

Building chromium on OSX

See https://chromium.googlesource.com/chromium/src/+/master/docs/mac_build_instructions.md

git clone depot_tools

add to path (not using ~ but $HOME) in .bash_profile

Increase vnodes

sudo sysctl kern.maxvnodes=$((512*1024))

MateusZitelli

from typing import Tuple, Iterable, Callable, TypeVar
import functools

Solution = TypeVar("Solution")
Population = Iterable[Solution]
EvaluatedPopulation = Iterable[Tuple[float, Solution]]
EvolutionState = Tuple[EvaluatedPopulation, bool]

FitnessFunction = Callable[[Solution], float]
Mutator = Callable[[Solution], Solution]