Index: libs/fusion/test/sequence/boost_tuple.cpp
===================================================================
--- libs/fusion/test/sequence/boost_tuple.cpp	(revision 51780)
+++ libs/fusion/test/sequence/boost_tuple.cpp	(working copy)
@@ -12,6 +12,7 @@
 #include <boost/fusion/sequence/intrinsic/front.hpp>
 #include <boost/fusion/sequence/intrinsic/back.hpp>
 #include <boost/fusion/sequence/io/out.hpp>
+#include <boost/fusion/iterator/distance.hpp>
 #include <boost/fusion/container/vector/vector.hpp>
 #include <boost/fusion/container/list/list.hpp>
 #include <boost/fusion/container/generation/make_vector.hpp>
@@ -84,6 +85,16 @@
         fusion::list<int, std::string> l(tuples::make_tuple(123, "Hola!!!"));
         l = tuples::make_tuple(123, "Hola!!!");
     }
+    
+    {
+        // test from Ticket #1601, submitted by Shunsuke Sogame
+        // expanded by Stjepan Rajko
+	    boost::tuple<int, char> t(3, 'a');
+	
+	    BOOST_TEST(0u == fusion::distance(fusion::begin(t), fusion::begin(t)));
+	    BOOST_TEST(1u == fusion::distance(fusion::begin(t), fusion::next(fusion::begin(t))));
+	    BOOST_TEST(2u == fusion::distance(fusion::begin(t), fusion::end(t)));
+    }
 
     return boost::report_errors();
 }