From ef9a7d22303cd3d81d5ec82bab4ac614a25031b9 Mon Sep 17 00:00:00 2001
From: Norman Feske <norman.feske@genode-labs.com>
Date: Wed, 11 May 2016 17:23:37 +0200
Subject: [PATCH] base: remove length limit of Type_list

---
 repos/base/include/util/meta.h | 36 ++++++----------------------------
 1 file changed, 6 insertions(+), 30 deletions(-)

diff --git a/repos/base/include/util/meta.h b/repos/base/include/util/meta.h
index 17333d5f9..53256f75c 100644
--- a/repos/base/include/util/meta.h
+++ b/repos/base/include/util/meta.h
@@ -87,41 +87,17 @@ namespace Genode {
 		/**
 		 * Type list with variable number of types
 		 */
-		template <typename T1 = Void, typename  T2 = Void, typename T3 = Void, typename T4 = Void,
-		          typename T5 = Void, typename  T6 = Void, typename T7 = Void, typename T8 = Void,
-		          typename T9 = Void, typename T10 = Void>
+		template <typename...>
 		struct Type_list;
 
 		template <>
-		struct Type_list<Void, Void, Void, Void, Void, Void, Void, Void, Void, Void> { typedef Empty Head; };
+		struct Type_list<> { typedef Empty Head; };
 
-		template <typename T1>
-		struct Type_list<T1, Void> : public Type_tuple<T1, Empty> { };
-
-		template <typename T1, typename T2>
-		struct Type_list<T1, T2, Void> : public Type_tuple<T1, Type_list<T2> > { };
-
-		template <typename T1, typename T2, typename T3>
-		struct Type_list<T1, T2, T3, Void> : public Type_tuple<T1, Type_list<T2, T3> > { };
-
-		template <typename T1, typename T2, typename T3, typename T4>
-		struct Type_list<T1, T2, T3, T4, Void> : public Type_tuple<T1, Type_list<T2, T3, T4> > { };
-
-		template <typename T1, typename T2, typename T3, typename T4, typename T5>
-		struct Type_list<T1, T2, T3, T4, T5, Void> : public Type_tuple<T1, Type_list<T2, T3, T4, T5> > { };
-
-		template <typename T1, typename T2, typename T3, typename T4, typename T5, typename T6>
-		struct Type_list<T1, T2, T3, T4, T5, T6, Void> : public Type_tuple<T1, Type_list<T2, T3, T4, T5, T6> > { };
-
-		template <typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7>
-		struct Type_list<T1, T2, T3, T4, T5, T6, T7, Void> : public Type_tuple<T1, Type_list<T2, T3, T4, T5, T6, T7> > { };
-
-		template <typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8>
-		struct Type_list<T1, T2, T3, T4, T5, T6, T7, T8, Void> : public Type_tuple<T1, Type_list<T2, T3, T4, T5, T6, T7, T8> > { };
-
-		template <typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8, typename T9>
-		struct Type_list<T1, T2, T3, T4, T5, T6, T7, T8, T9, Void> : public Type_tuple<T1, Type_list<T2, T3, T4, T5, T6, T7, T8, T9> > { };
+		template <typename T>
+		struct Type_list<T> : Type_tuple<T, Empty> { };
 
+		template <typename HEAD, typename... TAIL>
+		struct Type_list<HEAD, TAIL...> : Type_tuple<HEAD, Type_list<TAIL...> > { };
 
 		/**
 		 * Macro for wrapping the 'Type_list' template