Handout

kernel/utils/size.h

@@ -0,0 +1,17 @@
+/*! \file
+ *  \brief Template function to determine the length of an array
+ */
+
+#pragma once
+
+#include "../types.h"
+
+/* \brief Helper to retrieve the number of elements in an array
+ * (Warning: template magic)
+ * \param Array
+ * \return Number of elements
+ */
+template <class T, size_t N>
+constexpr size_t size(T (& /*unused*/)[N]) {
+	return N;
+}