1 files changed, 28 insertions, 0 deletions
diff --git a/include/util/TypeList.hpp b/include/util/TypeList.hpp
new file mode 100644
index 0000000..bc8c49b
--- /dev/null
+++ b/include/util/TypeList.hpp
@@ -0,0 +1,28 @@
+#ifndef __TYPELIST_H
+#define __TYPELIST_H
+
+class NullType {};
+
+template< class T, class U >
+struct TypeList {
+	typedef T Head;
+	typedef U Tail;
+};
+
+#define TYPELIST_1( T1 ) TypeList< T1, NullType >
+#define TYPELIST_2( T1, T2 ) TypeList< T1, TYPELIST_1( T2 ) >
+#define TYPELIST_3( T1, T2, T3 ) TypeList< T1, TYPELIST_2( T2, T3 ) >
+#define TYPELIST_4( T1, T2, T3, T4 ) TypeList< T1, TYPELIST_3( T2, T3, T4 ) >
+
+template< class T> struct Length;
+template< > struct Length< NullType >
+{
+	enum { value = 0 };
+};
+template< class T, class U >
+struct Length< TypeList< T, U > >
+{
+	enum { value = 1 + Length< U >::value };
+};
+
+#endif