Index: branches/release/boost/multi_array/base.hpp
===================================================================
--- a/branches/release/boost/multi_array/base.hpp
+++ b/branches/release/boost/multi_array/base.hpp
@@ -18,6 +18,7 @@
 // functionality is acquired
 //
 
+#include "boost/multi_array/collection_concept.hpp"
 #include "boost/multi_array/extent_range.hpp"
 #include "boost/multi_array/extent_gen.hpp"
 #include "boost/multi_array/index_range.hpp"
@@ -252,5 +253,17 @@
 /////////////////////////////////////////////////////////////////////////
 
-
+// Due to some imprecision in the C++ Standard, 
+// MSVC 2010 is broken in debug mode: it requires
+// that an Output Iterator have output_iterator_tag in its iterator_category if 
+// that iterator is not bidirectional_iterator or random_access_iterator.
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1600)
+struct mutable_iterator_tag
+ : boost::random_access_traversal_tag, std::input_iterator_tag
+{
+  operator std::output_iterator_tag() const {
+    return std::output_iterator_tag();
+  }
+};
+#endif
 
 ////////////////////////////////////////////////////////////////////////
@@ -322,5 +343,6 @@
                            const index* strides,
                            const index* index_bases) const {
-
+    boost::function_requires<
+      detail::multi_array::CollectionConcept<IndexList> >();
     ignore_unused_variable_warning(index_bases);
     ignore_unused_variable_warning(extents);
Index: branches/release/boost/multi_array/concept_checks.hpp
===================================================================
--- a/branches/release/boost/multi_array/concept_checks.hpp
+++ b/branches/release/boost/multi_array/concept_checks.hpp
@@ -132,4 +132,5 @@
       function_requires< boost_concepts::ForwardTraversalConcept<const_iterator> >();
       function_requires< boost_concepts::ReadableIteratorConcept<const_iterator> >();
+      function_requires< boost::OutputIterator<iterator,value_type> >();
       
       // RG - a( CollectionArchetype) when available...