misbell

import Foundation
import UIKit
//1 create view with a title property
class TestView : UIView {
  var title: String?
  var rank: Int?

  init(title: String, rank: Int) {
    self.title = title
    self.rank = rank

misbell

// This code runs in a playground in Swift 3.0.1

import Cocoa

var str = "Hello, playground"

/*
 MPI
 dec 2 2016
 

misbell

// Wrote this to test out how Arrays of Dictionaries are handled
// was surprised to see they become tuples in a for-in
// also some unintuitive string conversions

import Cocoa



func c() -> [String:Any]  {
    print ( "ok" )

misbell

so A and B are structurally identical
C reverses the order of the 8 and 32 bit Ints
and D substitutes a string for the Int8
then I try to read aaaa’s bits using B C and D overlays 😊
C is printing the 8 bits of the A integer j and then the first 8 bits of integer k but somehow that still works out to one

when I hit D it doesn’t find a string so prints a blank

but the important point is: it doesn’t check anything, and doesn’t crash

misbell

so this works as expected:

let conq = DispatchQueue(label: "ok", qos: .background, attributes: .concurrent   )
       // let conq = DispatchQueue.global(qos: .userInitiated)
        
        let dw1 = DispatchWorkItem {
            //sleep(2)
            print("dw1")
        }
        

misbell

#import "FoundationLocks.h"
#import "os/lock.h"

@implementation LockableObject

os_unfair_lock _lock;


- (instancetype) init {
    

misbell

        // pretending this is a subsystem
        let holdval = HoldAValue()
        
        var avalue: Int {
            var i: Int = 0
            DispatchQueue.global(qos: .userInitiated).sync {
                  i = holdval.anIntValue
            }
            return i
        }

misbell

   let dispatchGroup = DispatchGroup()
        
        let dq  = DispatchQueue.global(qos: .utility)
        dq.async {
            
            for i in 0...3{
                
                dq.async {
                    
                    print("\n i - \(i)")

misbell

#########################
# .gitignore file for Xcode4 / OS X Source projects
#
# NB: if you are storing "built" products, this WILL NOT WORK,
#   and you should use a different .gitignore (or none at all)
# This file is for SOURCE projects, where there are many extra
#   files that we want to exclude
#
# For updates, see: http://stackoverflow.com/questions/49478/git-ignore-file-for-xcode-projects
#########################