maddouri

# Usage Examples:
#    wsl-msg hello world
#    ./some_script && wsl-msg "Task Done"
wsl-msg() {
    tput bel
    # C:\Windows\System32\msg.exe from Windows 10 Pro
    msg.exe '*' /V /W "$@"
}

maddouri

#!/usr/bin/env bash

# Calls Windows' Sublime Text from WSL2
#
# Usage: subl [arguments] [files]         Edit the given files
#    or: subl [arguments] [directories]   Open the given directories
#    or: subl [arguments] -- [files]      Edit files that may start with '-'
#    or: subl [arguments] -               Edit stdin
#    or: subl [arguments] - >out          Edit stdin and write the edit to stdout
#

maddouri

#pragma once

#define sizeof_as_compiler_error(type) struct sizeof__##type##__is* (*sizeof__##type)[sizeof(type)] = -1;

maddouri

#/usr/bin/env bash
set -eu

USAGE="\nUSAGE: $0 -i INPUT_C_CXX_FILE -o OUTPUT_C_CXX_FILE [ -c G++_COMPILER  ]\n"

INPUT_FILE=''
OUTPUT_FILE=''
COMPILER='g++'

while [[ "$#" -gt 0 ]] ; do

maddouri

# https://unix.stackexchange.com/a/37182/140618
shopt -s autocd

maddouri

#pragma once

// Dereference a pointer only if it is not null
#define ifnotnull(p) for (auto* p__ = p; p__ != nullptr; p__ = nullptr) (*p__)

maddouri

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

maddouri

#!/usr/bin/env bash
set -eux

# From 
# * Generating list of manually installed packages and querying individual packages
# * https://askubuntu.com/a/492343/543097
# Tested on Ubuntu 18.04

comm -23 <(apt-mark showmanual | sort -u) <(gzip -dc /var/log/installer/initial-status.gz | sed -n 's/^Package: //p' | sort -u)

maddouri

#pragma once

#include <cstdint>
#include <exception>
#include <type_traits>
#include <utility>

// Usage
//     ON_SCOPE_EXIT         <callable> ;
//     ON_SCOPE_EXIT_FAIL    <callable> ;

maddouri

# https://stackoverflow.com/a/2615112/865719
# https://stackoverflow.com/a/7826789/865719
# https://stackoverflow.com/q/2764051/865719

# echo -n 'Hello' | tohex
# tohex INPUT_FILE
function tohex() { hexdump -ve '1/1 "%.2x"' "$@" ; }
function todec() { hexdump -ve '1/1 "%.3d"' "$@" ; }
function tobin() {
    xxd -b "$@" | cut -d" " -f2-7 | tr -d ' ' | tr -d '\n'