DataSource appears to be working but tableView is not reloading - ios

Question

I've got an issue where my tableView isn't updating based on the datasource correctly. I'm using a tabbed application structure with Storyboards.
My overall goal here is to have a tableView on the second tab display items that are removed from an array stored in a struct. The items are added to the array from the first tab.
There are 2 ViewControllers (1 for the interface for scrolling through items and selecting to remove them, and 1 to handle the tableView) and 2 Views (1 for the interface for scrolling through items and removing them and 1 for the tableView). The first tab is for providing the interface for removing the items and the second tab is for the tableView.
The remove and add to the array functionality works, just not the displaying it in the tableView.
Currently, if I hard code items in my "removed items" array, they are displayed in the tableView. The problem is that as I add items to the array from my removeItem function in the first ViewController, the tableView does not update, only the hard coded items are shown.
This makes me assume that I have my datasource and delegate setup correctly, since the tableView is getting it's data from the intended datasource. The issue is it's not updating as the user updates the array with new items.
I've tried using self.tableView.reloadData() with no success. I might not be calling in the correct location though.
I'm not sure where the disconnect is.
Here is my second view controller that controls the tableView
class SecondViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
let cellIdentifier = "cellIdentifier"
var removedTopicsFromList = containerForRemovedTopics()
#IBOutlet var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
self.tableView?.registerClass(UITableViewCell.self, forCellReuseIdentifier: self.cellIdentifier)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
// UITableViewDataSource methods
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return removedTopicsFromList.removedTopics.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = tableView.dequeueReusableCellWithIdentifier(self.cellIdentifier) as UITableViewCell
cell.textLabel!.text = self.removedTopicsFromList.removedTopics[indexPath.row]
return cell
}
Here is the struct where the removed phrases are stored
struct containerForRemovedTopics {
var removedTopics: [String] = []
}

Answer 1

structure instances are always passed by value. So if your code is something like:
var removedTopicsFromList = secondViewController.removedTopicsFromList
removedTopicsFromList.removedTopics.append("SomeTopic")
secondViewController.reloadData()
then you are changing the different structure.
Maybe you got stuck with this problem I guess.