Fix Timer Variadic Template Implementation

2019-02-09 13:31:22 +01:00
parent b623ba5003
commit fcd4b337c5
5 changed files with 114 additions and 16 deletions
@@ -0,0 +1,36 @@
+#ifndef UTIL_HELPERS_H
+#define UTIL_HELPERS_H
+
+#include <functional>
+
+
+namespace PresenceDetection {
+namespace Util {
+namespace Helpers {
+
+template <int... Is>
+struct index {};
+
+template <int N, int... Is>
+struct gen_seq : gen_seq<N - 1, N - 1, Is...> {};
+
+template <int... Is>
+struct gen_seq<0, Is...> : index<Is...> {};
+
+template <typename ...FunctionArguments, typename ...Arguments, int... Is>
+void execute(std::function<void(FunctionArguments...)> const & function, std::tuple<Arguments...>& tuple, index<Is...>)
+{
+	function(std::get<Is>(tuple)...);
+}
+
+template <typename ...FunctionArguments, typename ...Arguments>
+void execute(std::function<void(FunctionArguments...)> const & function, std::tuple<Arguments...>& tuple)
+{
+	execute(function, tuple, gen_seq<sizeof...(Arguments)>{});
+}
+
+} // namespace Helpers
+} // namespace Util
+} // namespace PresenceDetection
+
+#endif // UTIL_HELPERS_H