Printing every possible combinations of ABC (Swift 2.2 )

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I had time this evening .. so I figured why not dig up some example code I copied from a tutorial online and modify it to show every possible combinations of the letters A, B and C.

Only this time instead of showing through a terminal I would print it on an iPhone app. So here it is ..

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Source code:

import UIKit

class ViewController: UIViewController
    @IBOutlet weak  var totalPermutations: UILabel!         // print total permutations count of ABC
    @IBOutlet weak  var _comboTextView: UITextView!         // print every combination of ABC
    @IBOutlet       var _outputLabel: UILabel!
                    var _currentCount = 0

    let combinationsArray: [String] = ["A", "B", "C"]

     * Initialization
    override func viewDidLoad()

     * Print every combination of ABC
    func printCombinations()
        var totalCombinations = 0
        var str: String = ""
        for letter in combinationsArray {
            for nextLetter in combinationsArray {
                for nextNextLetter in combinationsArray {
                    str += (letter + nextLetter + nextNextLetter + "\n")
        totalPermutations.text = ("Permutations: " + String(totalCombinations))
        _comboTextView.text = str

     * Memory warning
    override func didReceiveMemoryWarning()

     * Start counting
    @IBAction func addOneButton(sender: UIButton)
        _outputLabel.text = "クリック回数は:\(_currentCount)"
        _outputLabel.textColor = UIColor.redColor()

Edit: Added total permutations counter
Github: https://github.com/benji011/counterApp

Samurai Gunship website finally released!

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Working at Pamprepps Games in Fukuoka Japan is awesome!
Today the official website for the game I developed for Android (iOS is coming soon) has been released!

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Link → http://pamprepps.com/samuraigunship/

“ERROR: Failed to build gem native extension” while installing DeployGate

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Being a fan of Github helped boost my interest in DeployGate purely because of using the Mac terminal to upload files is (while geeky) fun. All you do is login with a Github account (or Twitter or just sign up the old fashion way), then install the package into your library.

On the top of the page, click Developer Tools > Developer Center and you get to a page like this below:

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then click “Read How-Tos” ( https://deploygate.com/docs/cli )

The problem
I had a problem installing mine because of missing Ruby header file libraries like below

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Strange …

Solution / steps taken
After taking a few minutes to Google around I came across this webpage (Japanese):

Looks like we have to install XCode again and agree to their license. So go ahead and hit the command below in your terminal.

xcode-select --install

Now I try to install dgate again but no luck.
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After googling again ( http://ameblo.jp/siroikinoko/entry-11059282205.html ) it turns out I need to update my Ruby library:

sudo gem install rubygems-update

This time I finally got somewhere after hitting the same command to install dgate:

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