lukaskollmer

func privateHelperFunctionThatMayOrMayNotBeSemanticallyEquivalentToTheForceUnwrapOperator<T>(_ arg: T?) -> T {
    let oof = { fatalError("OH MY GOD it was null all along") }
    
    if MemoryLayout<T?>.size == MemoryLayout<T>.size { // zero abstraction optional?
        if withUnsafeBytes(of: arg, { $0.allSatisfy { $0 == 0 } }) {
            oof()
        }
        return unsafeBitCast(arg, to: T.self)
    }
    

lukaskollmer

// run w/ `CXX -DX=VAL`, where VAL is the input value
// https://godbolt.org/z/KgRth3

template <int N>
struct Fib {
    enum {
        value = Fib<N-1>::value + Fib<N-2>::value
    };
};

lukaskollmer

// Tracking cursor position in real-time without JavaScript
// Demo: https://twitter.com/davywtf/status/1124146339259002881

package main

import (
	"fmt"
	"net/http"
	"strings"
)

lukaskollmer

fib:
(__TEXT,__text) section
_main:
0000000100000f30	pushq	%rax
0000000100000f31	movq	0x8(%rsi), %rdi
0000000100000f35	callq	0x100000f88 ## symbol stub for: _atoi
0000000100000f3a	movl	%eax, %edi
0000000100000f3c	callq	__F3fibii
0000000100000f41	movl	%eax, 0x4(%rsp)
0000000100000f45	movl	0x4(%rsp), %eax

lukaskollmer

; ModuleID = 'main'
source_filename = "main"
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-darwin18.5.0"

declare i32 @atoi(i8*)

define i32 @main(i32 %argc, i8** %argv) {
entry:
  %0 = alloca i32

lukaskollmer

const fib_it = n => {
  let [a, b] = [0, 1];
  while (n-- > 0) {
    [a, b] = [b, a + b];
  }
  return a;
}

const fib_rec = n => {
  if (n < 2) return n;

lukaskollmer

#!/usr/bin/env ocaml

(*
gpa.ml

An OCaml program to calculate your TUM CS GPA

Made by Lukas Kollmer (lukas.kollmer@gmail.com)
*)

lukaskollmer

(*
OCaml program to count the total amount of space freed up when running `brew cleanup`

Usage:
    brew cleanup | ocaml count_homebrew_cleanup.ml

Author: Lukas Kollmer <lukas.kollmer@gmail.com>
Date: 2019-02-03
License: MIT
*)

lukaskollmer

/*
do {
    let libobjc = dlopen("/usr/lib/libobjc.A.dylib", RTLD_LAZY)!
    
    let _objc_getClass = FFIFunctionInvocation(symbol: "objc_getClass", handle: libobjc, returnType: .pointer, parameterTypes: [.pointer])
    
    var text = "NSProcessInfo".utf8CString
    
    var arg: UnsafePointer<CChar>!

lukaskollmer

def f(x, y):
    return (x-y, x+y)


def test(x, y):
    (x_, y_) = f(x, y)
    print(f"f({x}, {y}) = ({x_}, {y_})")