merge from trunk

[SVN r56179]

test/sequence/vector_n.cpp

@@ -33,10 +33,10 @@ main()
     using namespace std;
 
     {
-        vector0 vec;
+        vector0<> vec;
         (void) vec;
         cout << "(): " << sizeof(vec) << endl;
-        cout << (boost::is_empty<vector0>::value ? "is empty" : "is not empty") << endl;
+        cout << (boost::is_empty<vector0<> >::value ? "is empty" : "is not empty") << endl;
     }
 
     {
@@ -207,7 +207,7 @@ main()
     
     {
         // testing copy and assign from a view
-        vector0 empty;
+        vector0<> empty;
         fusion::vector2<int, long> v(fusion::push_back(fusion::push_back(empty, 123), 456));
         BOOST_TEST(at_c<0>(v) == 123);
         BOOST_TEST(at_c<1>(v) == 456);