Initial commit

include/fw/singleton.h

@@ -0,0 +1,21 @@
+#pragma once
+
+template<typename T>
+class singleton {
+public:
+	static T& instance();
+
+	singleton(const singleton&) = delete;
+	singleton& operator= (singleton) = delete;
+
+protected:
+	struct token {};
+	singleton() = default;
+};
+
+#include <memory>
+template<typename T>
+T& singleton<T>::instance() {
+	static const std::unique_ptr<T> instance{ new T{token{}} };
+	return *instance;
+}