allenyllee

#!/bin/bash

# install qemu utils
sudo apt install qemu-utils

# install nbd client
sudo apt install nbd-client

konstantint

// Source code for the post:
//   https://www.quora.com/Can-you-write-a-program-for-adding-10-numbers/answer/Konstantin-Tretyakov
//   http://fouryears.eu/2018/03/17/a-program-for-adding-10-numbers/
//
// Runs with the following config.xml:
// <Config>
//    <InputProvider class="Enterprise.NumberSequenceProvider"/>
//    <OutputConsumer class="Enterprise.PeanoNumberPrinter"/>
//    <Solution class="Enterprise.TenNumberAddingSolution">
//        <Strategy class="Enterprise.AdditionStrategy"/>

shafik

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

sgmonda

\documentclass[a4paper, 12pt]{article}
\usepackage[letterpaper, margin=2cm]{geometry}

\usepackage[T1]{fontenc}
\usepackage{beramono}
\usepackage{listings}
\usepackage{xcolor}

\newcommand\realnumberstyle[1]{}

ninedraft

Python udp broadcast client-server example

⚠️ ❗ ATTENTION ❗ ⚠️

This gist is deprecated and will not be edited in the future. Consider visit ninedraft/python-udp repo. It will not be deleted, however.

⚠️ ❗ ATTENTION ❗ ⚠️

EyMaddis

// this allows to send arbitrary messages. The chat conversation you want to send messages to has to be open.
// just run this in the JS console

// http://stackoverflow.com/a/39165137/1249001
function findReactComponent(dom) {
    for (var key in dom)
        if (key.startsWith("__reactInternalInstance$")) {
            var compInternals = dom[key]._currentElement;
            var compWrapper = compInternals._owner;
            var comp = compWrapper._instance;

meinside

for testing external hdd with smartctl,

install smartmontools

$ sudo apt-get install smartmontools

start test,

jewelsea

package login;

import javafx.event.*;
import javafx.fxml.FXML;
import javafx.scene.control.*;

/** Controls the login screen */
public class LoginController {
  @FXML private TextField user;
  @FXML private TextField password;

hSATAC

#!/usr/bin/perl
# Author: Todd Larason <jtl@molehill.org>
# $XFree86: xc/programs/xterm/vttests/256colors2.pl,v 1.2 2002/03/26 01:46:43 dickey Exp $

# use the resources for colors 0-15 - usually more-or-less a
# reproduction of the standard ANSI colors, but possibly more
# pleasing shades

# colors 16-231 are a 6x6x6 color cube
for ($red = 0; $red < 6; $red++) {