diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 97b3d6d..09a29d5 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -13,12 +13,12 @@
 import testing ;
 
 project
-	: requirements
-		<library>/boost/test//boost_unit_test_framework/
-		<library>/boost/regex//boost_regex/
-		<link>static
-		<threading>multi
-	;
+    : requirements
+        <library>/boost/test//boost_unit_test_framework/
+        <library>/boost/regex//boost_regex/
+        <link>static
+        <threading>multi
+    ;
 
 rule range-test ( name : includes * )
 {
@@ -31,141 +31,142 @@ rule range-test ( name : includes * )
 }
 
 test-suite range :
-	[ compile-fail compile_fail/iterator_range1.cpp ]
-	[ range-test adaptor_test/adjacent_filtered ]
-	[ range-test adaptor_test/copied ]
-	[ range-test adaptor_test/filtered ]
-	[ range-test adaptor_test/indexed ]
-	[ range-test adaptor_test/indirected ]
-	[ range-test adaptor_test/map ]
-	[ range-test adaptor_test/replaced ]
-	[ range-test adaptor_test/replaced_if ]
-	[ range-test adaptor_test/reversed ]
-	[ range-test adaptor_test/sliced ]
-	[ range-test adaptor_test/strided ]
-	[ range-test adaptor_test/strided2 ]
+    [ compile-fail compile_fail/iterator_range1.cpp ]
+    [ range-test adaptor_test/adjacent_filtered ]
+    [ range-test adaptor_test/copied ]
+    [ range-test adaptor_test/filtered ]
+    [ range-test adaptor_test/indexed ]
+    [ range-test adaptor_test/indirected ]
+    [ range-test adaptor_test/map ]
+    [ range-test adaptor_test/replaced ]
+    [ range-test adaptor_test/replaced_if ]
+    [ range-test adaptor_test/reversed ]
+    [ range-test adaptor_test/sliced ]
+    [ range-test adaptor_test/strided ]
+    [ range-test adaptor_test/strided2 ]
+    [ range-test adaptor_test/ticket_6742_transformed_c4789_warning ]
     [ range-test adaptor_test/ticket_8676_sliced_transformed ]
-	[ range-test adaptor_test/ticket_9519_strided_reversed ]
-	[ range-test adaptor_test/tokenized ]
-	[ range-test adaptor_test/transformed ]
-	[ range-test adaptor_test/type_erased ]
-	[ range-test adaptor_test/uniqued ]
-	[ range-test adaptor_test/adjacent_filtered_example ]
-	[ range-test adaptor_test/copied_example ]
-	[ range-test adaptor_test/filtered_example ]
-	[ range-test adaptor_test/indexed_example ]
-	[ range-test adaptor_test/indirected_example ]
-	[ range-test adaptor_test/map_keys_example ]
-	[ range-test adaptor_test/map_values_example ]
-	[ range-test adaptor_test/replaced_example ]
-	[ range-test adaptor_test/replaced_if_example ]
-	[ range-test adaptor_test/reversed_example ]
-	[ range-test adaptor_test/sliced_example ]
-	[ range-test adaptor_test/strided_example ]
-	[ range-test adaptor_test/transformed_example ]
-	[ range-test adaptor_test/tokenized_example ]
-	[ range-test adaptor_test/type_erased_example ]
-	[ range-test adaptor_test/uniqued_example ]
-	[ range-test algorithm_test/adjacent_find ]
-	[ range-test algorithm_test/binary_search ]
-	[ range-test algorithm_test/copy ]
-	[ range-test algorithm_test/copy_backward ]
-	[ range-test algorithm_test/count ]
-	[ range-test algorithm_test/count_if ]
-	[ range-test algorithm_test/equal ]
-	[ range-test algorithm_test/equal_range ]
-	[ range-test algorithm_test/fill ]
-	[ range-test algorithm_test/find ]
-	[ range-test algorithm_test/find_if ]
-	[ range-test algorithm_test/find_end ]
-	[ range-test algorithm_test/find_first_of ]
-	[ range-test algorithm_test/for_each ]
-	[ range-test algorithm_test/generate ]
-	[ range-test algorithm_test/heap ]
-	[ range-test algorithm_test/includes ]
-	[ range-test algorithm_test/inplace_merge ]
-	[ range-test algorithm_test/lexicographical_compare ]
-	[ range-test algorithm_test/lower_bound ]
-	[ range-test algorithm_test/max_element ]
-	[ range-test algorithm_test/merge ]
-	[ range-test algorithm_test/min_element ]
-	[ range-test algorithm_test/mismatch ]
-	[ range-test algorithm_test/next_permutation ]
-	[ range-test algorithm_test/nth_element ]
-	[ range-test algorithm_test/partial_sort ]
-	[ range-test algorithm_test/partition ]
-	[ range-test algorithm_test/prev_permutation ]
-	[ range-test algorithm_test/random_shuffle ]
-	[ range-test algorithm_test/remove ]
-	[ range-test algorithm_test/remove_copy ]
-	[ range-test algorithm_test/remove_copy_if ]
-	[ range-test algorithm_test/remove_if ]
-	[ range-test algorithm_test/replace ]
-	[ range-test algorithm_test/replace_copy ]
-	[ range-test algorithm_test/replace_copy_if ]
-	[ range-test algorithm_test/replace_if ]
-	[ range-test algorithm_test/reverse ]
-	[ range-test algorithm_test/reverse_copy ]
-	[ range-test algorithm_test/rotate ]
-	[ range-test algorithm_test/rotate_copy ]
-	[ range-test algorithm_test/search ]
-	[ range-test algorithm_test/search_n ]
-	[ range-test algorithm_test/set_difference ]
-	[ range-test algorithm_test/set_intersection ]
-	[ range-test algorithm_test/set_symmetric_difference ]
-	[ range-test algorithm_test/set_union ]
-	[ range-test algorithm_test/sort ]
-	[ range-test algorithm_test/stable_partition ]
-	[ range-test algorithm_test/stable_sort ]
-	[ range-test algorithm_test/swap_ranges ]
-	[ range-test algorithm_test/transform ]
-	[ range-test algorithm_test/unique ]
-	[ range-test algorithm_test/unique_copy ]
-	[ range-test algorithm_test/upper_bound ]
-	[ range-test algorithm_ext_test/copy_n ]
-	[ range-test algorithm_ext_test/erase ]
-	[ range-test algorithm_ext_test/for_each_ext ]
-	[ range-test algorithm_ext_test/insert ]
-	[ range-test algorithm_ext_test/iota ]
-	[ range-test algorithm_ext_test/is_sorted ]
-	[ range-test algorithm_ext_test/overwrite ]
-	[ range-test algorithm_ext_test/push_back ]
-	[ range-test algorithm_ext_test/push_front ]
-	[ range-test adl_conformance ]
-	[ range-test adl_conformance_no_using ]
-	[ range-test algorithm ]
-	[ range-test algorithm_example ]
-	[ range-test array ]
-#	[ range-test atl : <include>$(VC71_ROOT)/atlmfc/include ]
+    [ range-test adaptor_test/ticket_9519_strided_reversed ]
+    [ range-test adaptor_test/tokenized ]
+    [ range-test adaptor_test/transformed ]
+    [ range-test adaptor_test/type_erased ]
+    [ range-test adaptor_test/uniqued ]
+    [ range-test adaptor_test/adjacent_filtered_example ]
+    [ range-test adaptor_test/copied_example ]
+    [ range-test adaptor_test/filtered_example ]
+    [ range-test adaptor_test/indexed_example ]
+    [ range-test adaptor_test/indirected_example ]
+    [ range-test adaptor_test/map_keys_example ]
+    [ range-test adaptor_test/map_values_example ]
+    [ range-test adaptor_test/replaced_example ]
+    [ range-test adaptor_test/replaced_if_example ]
+    [ range-test adaptor_test/reversed_example ]
+    [ range-test adaptor_test/sliced_example ]
+    [ range-test adaptor_test/strided_example ]
+    [ range-test adaptor_test/transformed_example ]
+    [ range-test adaptor_test/tokenized_example ]
+    [ range-test adaptor_test/type_erased_example ]
+    [ range-test adaptor_test/uniqued_example ]
+    [ range-test algorithm_test/adjacent_find ]
+    [ range-test algorithm_test/binary_search ]
+    [ range-test algorithm_test/copy ]
+    [ range-test algorithm_test/copy_backward ]
+    [ range-test algorithm_test/count ]
+    [ range-test algorithm_test/count_if ]
+    [ range-test algorithm_test/equal ]
+    [ range-test algorithm_test/equal_range ]
+    [ range-test algorithm_test/fill ]
+    [ range-test algorithm_test/find ]
+    [ range-test algorithm_test/find_if ]
+    [ range-test algorithm_test/find_end ]
+    [ range-test algorithm_test/find_first_of ]
+    [ range-test algorithm_test/for_each ]
+    [ range-test algorithm_test/generate ]
+    [ range-test algorithm_test/heap ]
+    [ range-test algorithm_test/includes ]
+    [ range-test algorithm_test/inplace_merge ]
+    [ range-test algorithm_test/lexicographical_compare ]
+    [ range-test algorithm_test/lower_bound ]
+    [ range-test algorithm_test/max_element ]
+    [ range-test algorithm_test/merge ]
+    [ range-test algorithm_test/min_element ]
+    [ range-test algorithm_test/mismatch ]
+    [ range-test algorithm_test/next_permutation ]
+    [ range-test algorithm_test/nth_element ]
+    [ range-test algorithm_test/partial_sort ]
+    [ range-test algorithm_test/partition ]
+    [ range-test algorithm_test/prev_permutation ]
+    [ range-test algorithm_test/random_shuffle ]
+    [ range-test algorithm_test/remove ]
+    [ range-test algorithm_test/remove_copy ]
+    [ range-test algorithm_test/remove_copy_if ]
+    [ range-test algorithm_test/remove_if ]
+    [ range-test algorithm_test/replace ]
+    [ range-test algorithm_test/replace_copy ]
+    [ range-test algorithm_test/replace_copy_if ]
+    [ range-test algorithm_test/replace_if ]
+    [ range-test algorithm_test/reverse ]
+    [ range-test algorithm_test/reverse_copy ]
+    [ range-test algorithm_test/rotate ]
+    [ range-test algorithm_test/rotate_copy ]
+    [ range-test algorithm_test/search ]
+    [ range-test algorithm_test/search_n ]
+    [ range-test algorithm_test/set_difference ]
+    [ range-test algorithm_test/set_intersection ]
+    [ range-test algorithm_test/set_symmetric_difference ]
+    [ range-test algorithm_test/set_union ]
+    [ range-test algorithm_test/sort ]
+    [ range-test algorithm_test/stable_partition ]
+    [ range-test algorithm_test/stable_sort ]
+    [ range-test algorithm_test/swap_ranges ]
+    [ range-test algorithm_test/transform ]
+    [ range-test algorithm_test/unique ]
+    [ range-test algorithm_test/unique_copy ]
+    [ range-test algorithm_test/upper_bound ]
+    [ range-test algorithm_ext_test/copy_n ]
+    [ range-test algorithm_ext_test/erase ]
+    [ range-test algorithm_ext_test/for_each_ext ]
+    [ range-test algorithm_ext_test/insert ]
+    [ range-test algorithm_ext_test/iota ]
+    [ range-test algorithm_ext_test/is_sorted ]
+    [ range-test algorithm_ext_test/overwrite ]
+    [ range-test algorithm_ext_test/push_back ]
+    [ range-test algorithm_ext_test/push_front ]
+    [ range-test adl_conformance ]
+    [ range-test adl_conformance_no_using ]
+    [ range-test algorithm ]
+    [ range-test algorithm_example ]
+    [ range-test array ]
+#    [ range-test atl : <include>$(VC71_ROOT)/atlmfc/include ]
     [ range-test begin ]
-	[ range-test combine ]
-	[ range-test compat2 ]
-	[ range-test compat3 ]
-	[ range-test const_ranges ]
-	[ range-test counting_range ]
-	[ range-test end ]
-	[ range-test extension_mechanism ]
-	[ range-test extension_size ]
-	[ range-test has_range_iterator ]
-	[ range-test irange ]
-	[ range-test istream_range ]
-	[ range-test iterator_pair ]
-	[ range-test iterator_range ]
-	[ range-test iterator_range_variant ]
-#   	[ range-test mfc : <include>$(VC71_ROOT)/atlmfc/include ]
+    [ range-test combine ]
+    [ range-test compat2 ]
+    [ range-test compat3 ]
+    [ range-test const_ranges ]
+    [ range-test counting_range ]
+    [ range-test end ]
+    [ range-test extension_mechanism ]
+    [ range-test extension_size ]
+    [ range-test has_range_iterator ]
+    [ range-test irange ]
+    [ range-test istream_range ]
+    [ range-test iterator_pair ]
+    [ range-test iterator_range ]
+    [ range-test iterator_range_variant ]
+#       [ range-test mfc : <include>$(VC71_ROOT)/atlmfc/include ]
     [ range-test join ]
-	[ range-test partial_workaround ]
-	[ range-test pointer_as_iterator ]
-	[ range-test reversible_range ]
-	[ range-test std_container ]
-	[ range-test string ]
-	[ range-test sub_range ]
-	[ range-test ticket_5486 ]
-	[ range-test ticket_5544_terminate_irange ]
-	[ range-test ticket_5547 ]
-	[ range-test ticket_5556_is_sorted_namespace ]
+    [ range-test partial_workaround ]
+    [ range-test pointer_as_iterator ]
+    [ range-test reversible_range ]
+    [ range-test std_container ]
+    [ range-test string ]
+    [ range-test sub_range ]
+    [ range-test ticket_5486 ]
+    [ range-test ticket_5544_terminate_irange ]
+    [ range-test ticket_5547 ]
+    [ range-test ticket_5556_is_sorted_namespace ]
     [ range-test ticket_5811_indirected_optional ]
     [ range-test ticket_6715_iterator_range_equality ]
-	[ range-test ticket_6944 ]
+    [ range-test ticket_6944 ]
     ;
 
diff --git a/test/adaptor_test/ticket_6742_transformed_c4789_warning.cpp b/test/adaptor_test/ticket_6742_transformed_c4789_warning.cpp
new file mode 100644
index 0000000..fdd7118
--- /dev/null
+++ b/test/adaptor_test/ticket_6742_transformed_c4789_warning.cpp
@@ -0,0 +1,69 @@
+// Boost.Range library
+//
+//  Copyright Neil Groves 2014. Use, modification and
+//  distribution is subject to the Boost Software License, Version
+//  1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+//
+// For more information, see http://www.boost.org/libs/range/
+//
+#include <boost/phoenix/core.hpp>
+#include <boost/phoenix/operator.hpp>
+#include <boost/range/adaptor/transformed.hpp>
+#include <boost/range/algorithm_ext/push_back.hpp>
+#include <boost/test/test_tools.hpp>
+#include <boost/test/unit_test.hpp>
+#include <iterator>
+#include <iostream>
+#include <vector>
+
+namespace
+{
+    struct test_struct
+    {
+        double x;
+        double y;
+    };
+
+    struct get_x
+    {
+        typedef double result_type;
+        double operator()(const test_struct& s) const
+        {
+            return s.x;
+        }
+    };
+
+    void range_transformed_warning()
+    {
+        using namespace boost::phoenix::arg_names;
+        using namespace boost::adaptors;
+
+        test_struct t;
+        t.x = 2.0;
+        t.y = -4.0;
+        std::vector<test_struct> v(10u, t);
+
+        std::vector<double> output1;
+        boost::push_back(output1, v | transformed((&arg1)->*& test_struct::x));
+
+        std::vector<double> output2;
+        boost::push_back(output2, v | transformed(get_x()));
+
+        BOOST_CHECK_EQUAL_COLLECTIONS(
+                    output1.begin(), output1.end(),
+                    output2.begin(), output2.end());
+    }
+} // anonymous namespace
+
+boost::unit_test::test_suite*
+init_unit_test_suite(int argc, char* argv[])
+{
+    boost::unit_test::test_suite* test
+        = BOOST_TEST_SUITE( "Range adaptors - transformed warning" );
+
+    test->add(BOOST_TEST_CASE(&range_transformed_warning));
+
+    return test;
+}