From a93dfc964b2fd0e728a5f43c3eb51dbb8474e018 Mon Sep 17 00:00:00 2001
From: Bouke Haarsma <bouke@haarsma.eu>
Date: Sun, 19 Nov 2017 20:00:06 +0100
Subject: [PATCH] Resolve most compiler warnings

---
 Sources/HAP/Base/CharacteristicValueType.swift | 4 ----
 Sources/HAP/Utils/Data+Extensions.swift        | 6 +++---
 2 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/Sources/HAP/Base/CharacteristicValueType.swift b/Sources/HAP/Base/CharacteristicValueType.swift
index 36c4af54..3b408b8e 100644
--- a/Sources/HAP/Base/CharacteristicValueType.swift
+++ b/Sources/HAP/Base/CharacteristicValueType.swift
@@ -75,10 +75,6 @@ extension Float: CharacteristicValueType {
 extension Data: CharacteristicValueType, JSONValueTypeConvertible {
     public init?(value: Any) {
         fatalError("How does deserialization of Data work?")
-        guard let data = value as? Data else {
-            return nil
-        }
-        self = data
     }
     static public let format = CharacteristicFormat.data
     public var jsonValueType: JSONValueType {
diff --git a/Sources/HAP/Utils/Data+Extensions.swift b/Sources/HAP/Utils/Data+Extensions.swift
index 6ef61d29..3a83a2c9 100644
--- a/Sources/HAP/Utils/Data+Extensions.swift
+++ b/Sources/HAP/Utils/Data+Extensions.swift
@@ -17,9 +17,9 @@ extension Data {
 extension Data {
     init?(hex: String) {
         var result = [UInt8]()
-        var from = hex.characters.startIndex
-        while from < hex.characters.endIndex {
-            guard let to = hex.characters.index(from, offsetBy: 2, limitedBy: hex.characters.endIndex) else {
+        var from = hex.startIndex
+        while from < hex.endIndex {
+            guard let to = hex.index(from, offsetBy: 2, limitedBy: hex.endIndex) else {
                 return nil
             }
             guard let num = UInt8(hex[from..<to], radix: 16) else {