damhiya

let
  kime = import ./pkgs/kime.nix;
  gtk3_cache = pkgs.runCommand "gtk3-immodule.cache"
    { preferLocalBuild = true;
      allowSubstitutes = false;
      buildInputs = [ pkgs.gtk3 kime ];
    }
    ''
      mkdir -p $out/etc/gtk-3.0/
      GTK_PATH=${kime}/lib/gtk-3.0/ gtk-query-immodules-3.0 > $out/etc/gtk-3.0/immodules.cache

mujjingun

#include <algorithm>
#include <type_traits>

template <int... Ints>
struct Row {
    constexpr static bool empty = (sizeof...(Ints) == 0);
};

template <typename Upper, typename Lower>
struct Domino {

tirr-c

#![feature(asm, panic_implementation)]
#![no_std]
#![no_main]
///! With nightly compiler, run:
///! ```sh
///! rustc -O -C panic=abort -Z pre-link-arg=-nostartfiles no-std.rs
///! ```

#[panic_implementation]
#[no_mangle]

seungwonpark

% Original: https://git.io/vQwmS
% convert -delay 4 -loop 0 -density 400 -alpha remove joi-style-mag.pdf joi-style-mag.gif
% !TeX program = lualatex
\RequirePackage{luatex85}
\documentclass[multi=my]{standalone}
\usepackage{tikz}
\usepackage{luacode}
\usepackage{graphicx}
\definecolor{joired}{RGB}{218,11,49}
\definecolor{joigreen}{RGB}{18,136,104}

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

antirez

Meltdown fix impact on Redis performances in virtualized environments

UPDATE: apparently kernel difference may have a serious impact, so I'll redo the test from scratch.

Test performed with AOF enabled, fsync policy 1 second, allowing the rewrites to be triggered.

Command lines used:

if1live

// ==UserScript==
// @name Twitter Cramming
// @description Force enable cramming (280 character tweets) on Twitter
// @author Prof. 9
// @version 0.2
// @match https://twitter.com/*
// @run-at document-idle
// @namespace prof9.twittercramming
// ==/UserScript==

asukakenji

Go (Golang) GOOS and GOARCH

All of the following information is based on go version go1.17.1 darwin/amd64.

GOOS Values

GOOS	Out of the Box
aix	✅
android	✅

redism

#!/bin/bash
if [ -f ~/Library/KeyBindings/DefaultkeyBinding.dict ]; then
	echo "~/Library/KeyBindings/DefaultkeyBinding.dict already exists"
	exit -1
fi

mkdir -p ~/Library/KeyBindings
cat << EOF > ~/Library/KeyBindings/DefaultkeyBinding.dict 
{
    "₩" = ("insertText:", "\`");

simnalamburt

TypeScript vs Flow

Comparison of two javascript type checker mainly about tagged union = discriminated union = disjoint union.

Short answer: TypeScript win!

Reference: facebook/flow#2400