munckymagik

#!/bin/sh

# This script runs queries that interrogate vacuuming config and statistics.

set -e

function execute_query() {
  local query="$1"
  "$psql_cmd" "$database_url" -c "$query"
}

munckymagik

PostgreSQL - EXPLAIN cheatsheet

• -> Marks the start of info on a "plan node"
• Work from the leaves to the root to understand what happened first

(cost=0.00..5.04 rows=101 width=0)

• (cost=

munckymagik

#include <iostream>
#include <bitset>

static uint8_t rev(uint8_t v) {
    uint8_t s = 8 * sizeof(v); // bit size; must be power of 2
    uint8_t mask = ~0;
    while ((s >>= 1) > 0) {
        mask ^= (mask << s);
        v = ((v >> s) & mask) | ((v << s) & ~mask);
    }

munckymagik

#!/usr/bin/osascript -l JavaScript

// Update these with your chosen themes for Apple Terminal
const TERMINAL_DARK_THEME_NAME = "YourDarkTheme"
const TERMINAL_LIGHT_THEME_NAME = "YourLightTheme"

const app = Application.currentApplication()
app.includeStandardAdditions = true

const SysEvents = Application("System Events")

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// run with node --harmony

(() => {
  'use strict'

  function zip(... arrays) {
    return arrays[0].map(function(_,i){
        return arrays.map(function(array){return array[i]})
    });
  }

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{
  // See https://go.microsoft.com/fwlink/?LinkId=733558
  // for the documentation about the tasks.json format
  "version": "2.0.0",
  "tasks": [
    {
      "label": "Build",
      "type": "shell",
      "command": "cargo build",
      "group": {

munckymagik

trait Animal {
    fn make_sound(&self);
}

struct Dog {}

impl Animal for Dog {
    fn make_sound(&self) {
        println!("My signature bark!");
    }

munckymagik

# Basic CMake project
cmake_minimum_required(VERSION 2.8.11)

# Name the project after the exercise
project(omptryout CXX)

set(OpenMP_CXX_FLAGS "-Xpreprocessor -fopenmp -I/usr/local/opt/libomp/include")
set(OpenMP_CXX_LIB_NAMES "omp")
set(OpenMP_omp_LIBRARY "/usr/local/opt/libomp/lib/libomp.dylib")
find_package(OpenMP REQUIRED)

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// clang++ -std=c++11 -o range range.cpp && ./range

// Based on http://stackoverflow.com/questions/7185437/is-there-a-range-class-in-c11-for-use-with-range-based-for-loops
// However https://en.wikipedia.org/wiki/Generator_%28computer_programming%29#C.2B.2B is a way simpler example

#include <iostream>

template <class T>
class RangeClass {
public:

munckymagik

# Basic CMake project
cmake_minimum_required(VERSION 2.8.11)

# Name the project after the exercise
project(moving CXX)

set(CMAKE_CXX_FLAGS "-std=c++17 -Wall -Werror")

add_executable(moving moving.cpp)