NSEGeorge

extension SymmetricKey {
  init(string keyString: String, size: SymmetricKeySize = .bits256) throws {
    guard var keyData = keyString.data(using: .utf8) else {
      print("Could not create base64 encoded Data from String.")
      throw CryptoKitError.incorrectParameterSize
    }
    
    let keySizeBytes = size.bitCount / 8
    keyData = keyData.subdata(in: 0..<keySizeBytes)
    

NSEGeorge

import Foundation
import RNCryptor
import CryptoKit
 
public enum MLCryptor {
  case cryptoKit
  case rnCryptor
  
  public func encrypt(data: Data, withPassword password: String) throws -> Data? {
    switch self {

NSEGeorge

public struct MLEncoderTool {
  // The first argument is the file name
  // The second argument is key
  private let arguments: [String]
  
  private let cryptor: MLCryptor
  
  public init(
    arguments: [String] = CommandLine.arguments,
    cryptor: MLCryptor = MLCryptor.cryptoKit

NSEGeorge

class WeakList<T: AnyObject> {
    private class WeakRef {
        private(set) weak var value: T?
        
        init(_ value: T) {
            self.value = value
        }
    }
    
    private var arr = [WeakRef]()

NSEGeorge

typealias A = ArraySlice<Bool>
func sieveOfEratosthenes(limit: Int) -> [Int] {
  var possibles = A(repeating: true, count: limit + 1)
  var result = [Int]()
  for i in 2 ... limit {
    guard possibles[i] else { continue }
    for j in stride(from: i * i, through: limit, by: i) {
        possibles[j] = false
    }
    result.append(i)

NSEGeorge

import UIKit

class LaunchTimeMeasurer {
    private let pid = ProcessInfo().processIdentifier
    private var currentTime = timeval(tv_sec: 0, tv_usec: 0)
    private var bootTime = timeval()
    private var size = MemoryLayout<kinfo_proc>.stride
    private var mib: [Int32]
    
    init() {

NSEGeorge

#include "LaunchTimeMeasurer.h"
#include <sys/sysctl.h>
#include <sys/unistd.h>

double processUptime() {
    struct timeval currentTime;                   // current time returned by gettimeofday
    struct kinfo_proc processInfo;                // information about current process returned by sysctl
    size_t processInfoSize = sizeof(processInfo); // information's size
    int mib[] = {                                 // Management Information Base
        CTL_KERN,                                 // "high kernel": proc, limits