//  main.swift
//  SwiftList - By Michael G. Workman
//
// An Example Swift application that builds and outputs a list
//
// This application freely distributable under terms of MIT open source license

import Foundation
import CoreFoundation

// class for timing the list creation and display
class AlgorithmTimer {

    let startTime:CFAbsoluteTime
    var endTime:CFAbsoluteTime?

    init() {
        startTime = CFAbsoluteTimeGetCurrent()
    }

    func stop() -> CFAbsoluteTime {

        endTime = CFAbsoluteTimeGetCurrent()
        return duration!
    }

    var duration:CFAbsoluteTime? {

        if let endTime = endTime {

            return endTime - startTime

        } else {
            return nil
        }
    }
}

// set timer and start
var timer = AlgorithmTimer()

// create list array of integers
var intList = Array<Int>()

// populate list with 100 thousand consecutive integer numbers
for i in 1...100000
{
    intList.append(i);
}

// output contents of list one element at a time
for i in intList
{
    print(i)
}

// get the amount of time it took to complete
print("Swift time to build and display list: \(timer.stop()) seconds")
print("Number elements: \(intList.endIndex)")