diff -r a76af67a3a4b -r 7b156b764d11 sources/range.h
--- a/sources/range.h	Sat Jan 09 02:35:00 2016 +0200
+++ b/sources/range.h	Sat Jan 09 17:41:21 2016 +0200
@@ -31,6 +31,8 @@
 #pragma once
 #include <algorithm>
 #include <memory>
+#include "basics.h"
+BEGIN_ZFC_NAMESPACE
 
 //
 // -------------------------------------------------------------------------------------------------
@@ -146,4 +148,6 @@
 	{
 		return not operator== (other);
 	}
-};
\ No newline at end of file
+};
+
+END_ZFC_NAMESPACE