Extract Optional to own header.

firmware/application/tpms_app.hpp

@@ -29,20 +29,7 @@
 
 #include "recent_entries.hpp"
 
-template<typename T>
+#include "optional.hpp"
-class Optional {
-public:
-	constexpr Optional() : value_ { }, valid_ { false } { };
-	constexpr Optional(const T& value) : value_ { value }, valid_ { true } { };
-	constexpr Optional(T&& value) : value_ { std::move(value) }, valid_ { true } { };
-
-	bool is_valid() const { return valid_; };
-	T value() const { return value_; };
-
-private:
-	T value_;
-	bool valid_;
-};
 
 namespace tpms {
 

firmware/common/optional.hpp

@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2016 Jared Boone, ShareBrained Technology, Inc.
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __OPTIONAL_H__
+#define __OPTIONAL_H__
+
+#include <utility>
+
+template<typename T>
+class Optional {
+public:
+	constexpr Optional() : value_ { }, valid_ { false } { };
+	constexpr Optional(const T& value) : value_ { value }, valid_ { true } { };
+	constexpr Optional(T&& value) : value_ { std::move(value) }, valid_ { true } { };
+
+	bool is_valid() const { return valid_; };
+	T value() const { return value_; };
+
+private:
+	T value_;
+	bool valid_;
+};
+
+#endif/*__OPTIONAL_H__*/