Multidimensional arrays in Swift

Array2D.swift

class Array2D<T> {
	
	var columns: Int
	var rows: Int
	var matrix: [T]
	
	init(columns: Int, rows: Int, defaultValue: T) {
		self.columns = columns
		self.rows = rows
		matrix = Array(count: columns * rows, repeatedValue: defaultValue)
	}
	
	subscript(column: Int, row: Int) -> T {
		get {
			return matrix[columns * row + column]
		}
		set {
			matrix[columns * row + column] = newValue
		}
	}
	
	func columnCount() -> Int {
		return self.columns
	}
	
	func rowCount() -> Int {
		return self.rows
	}
}

// Using

let array = Array2D(columns: 5, rows: 5, defaultValue: 0)
array[0, 0] = 5
array[1, 1] = 8
array[2, 3] = 7
		
for (var i = 0; i < 5; ++i) {
	for (var j = 0; j < 5; ++j) {
		print(array[i, j])
	}
}

I feel like you used to work on C#.

I feel like you used to work on C#.

Actually not 😄