NoahPeeters

class threeNPlusOne: Sequence, IteratorProtocol {
    var n: UInt
    
    init(withStartNumber startN: UInt) {
        n = startN * 2 // multiply by 2 so that n is a even number and will be devided by two in the first next() call
    }
    
    func next() -> UInt? {
        if n % 2 == 0 {       // even
            n /= 2

NoahPeeters

extension Sequence {
    public func filterMap<T>(map: (Self.Iterator.Element) throws -> (Bool, T)) rethrows -> [T] {
        var array : [T] = []
        for element in self {
            do {
                let (result, value) = try map(element)
                if result {
                    array.append(value)
                }
            }

NoahPeeters

/// Returns value if it's contained in range; otherwise the returned value is limited to the range's bounds.
///
/// - Parameters:
///   - value: The value to restrict.
///   - range: The range used to restict the value.
/// - Returns: The resticted value.
func restrict<T>(_ value: T, between range: ClosedRange<T>) -> T {
    return min(range.upperBound, max(range.lowerBound, value))
}

NoahPeeters

import Foundation

extension MutableCollection {
    /// Shuffles the contents of this collection.
    mutating func shuffle() {
        let c = count
        guard c > 1 else { return }
        
        for (firstUnshuffled, unshuffledCount) in zip(indices, stride(from: c, to: 1, by: -1)) {
            let d: IndexDistance = numericCast(arc4random_uniform(numericCast(unshuffledCount)))

NoahPeeters

Keybase proof

I hereby claim:

• I am noahpeeters on github.
• I am noahpeeters (https://keybase.io/noahpeeters) on keybase.
• I have a public key ASDehL9DdQ3y3-Bxbq8XceFF7LFjD9mPG0Mz8aVBSiGDxgo

To claim this, I am signing this object:

NoahPeeters

import Foundation

public class Dev<Value> {
    public static var null: Value {
        get {
            fatalError("You are not allowed to read from dev/null of \(self)")
        }
        set {}
    }

NoahPeeters

original_filename="lekciju_saraksts.ics"
filename=translated_$original_filename

cp $original_filename $filename

translate () {
    sed -i '.bak' "s/$1/$2/g" $filename
}

translate 'Adaptīvas datu apstrādes sistēmas' 'Adaptive Data Processing Systems'

NoahPeeters

public typealias Predicate<Value> = (Value) -> Bool

public func && <Value>(lhs: @escaping Predicate<Value>, rhs: @escaping Predicate<Value>) -> Predicate<Value> {
    { lhs($0) && rhs($0) }
}

public func || <Value>(lhs: @escaping Predicate<Value>, rhs: @escaping Predicate<Value>) -> Predicate<Value> {
    { lhs($0) || rhs($0) }
}