Dactyloidae iOS initial commit

mobile/ios/Shared/Extensions/DataExtensions.swift

@@ -0,0 +1,19 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import Foundation
+
+public extension Data {
+    public mutating func appendBytes(fromData data: Data) {
+        var bytes = [UInt8](repeating: 0, count: data.count)
+        data.copyBytes(to: &bytes, count: data.count)
+        self.append(bytes, count: bytes.count)
+    }
+
+    public func getBytes() -> [UInt8] {
+        var bytes = [UInt8](repeating: 0, count: self.count)
+        self.copyBytes(to: &bytes, count: self.count)
+        return bytes
+    }
+}