Fixed Size Array to Swift 4

Tested Fixed Size Array with Swift 4 and Xcode 9.0b4

Author: bobdel

Fixed Size Array/FixedSizeArray.playground/Contents.swift

@@ -1,5 +1,10 @@
 //: Playground - noun: a place where people can play
 
+// last checked with Xcode 9.0b4
+#if swift(>=4.0)
+  print("Hello, Swift 4!")
+#endif
+
 /*
  An unordered array with a maximum size.
 
@@ -53,3 +58,4 @@ array.append(2)
 array[1]
 array.removeAt(index: 0)
 array.removeAll()
+