Index: uspace/lib/cpp/include/cstddef
===================================================================
--- uspace/lib/cpp/include/cstddef	(revision ac47ba957b0fd60cd29f9d2ec4c9e058f7af37d3)
+++ uspace/lib/cpp/include/cstddef	(revision 5af0bc999945e2b7d72b71a8cb3ef02fe5fee383)
@@ -1,4 +1,4 @@
 /*
- * Copyright (c) 2017 Jaroslav Jindrak
+ * Copyright (c) 2018 Jaroslav Jindrak
  * All rights reserved.
  *
@@ -32,14 +32,25 @@
 #include "internal/common.hpp"
 
+namespace std::hel
+{
+    extern "C" {
+        #include <stddef.h>
+    }
+}
+
+
 namespace std
 {
+    using nullptr_t = decltype(nullptr);
 
-extern "C" {
-#include <stddef.h>
+    using std::hel::size_t;
+    using std::hel::ptrdiff_t;
+    /* using std::hel::max_align_t; */
 }
 
-using nullptr_t = decltype(nullptr);
-
-}
+using std::nullptr_t;
+using std::hel::size_t;
+using std::hel::ptrdiff_t;
+/* using std::hel::max_align_t; */
 
 #endif