Index: boost/archive/binary_oarchive_impl.hpp
===================================================================
RCS file: /cvsroot/boost/boost/boost/archive/binary_oarchive_impl.hpp,v
retrieving revision 1.1
diff -b -d -u -r1.1 binary_oarchive_impl.hpp
--- boost/archive/binary_oarchive_impl.hpp	4 Feb 2006 20:37:12 -0000	1.1
+++ boost/archive/binary_oarchive_impl.hpp	21 May 2006 22:24:42 -0000
@@ -24,7 +24,7 @@
 namespace boost { 
 namespace archive {
 
-template<class Archive, class Elem, class Tr>
+template<class Archive, class Elem = std::istream::char_type, class Tr = std::istream::traits_type>
 class binary_oarchive_impl : 
     public basic_binary_oprimitive<Archive, Elem, Tr>,
     public basic_binary_oarchive<Archive>
Index: boost/archive/binary_iarchive_impl.hpp
===================================================================
RCS file: /cvsroot/boost/boost/boost/archive/binary_iarchive_impl.hpp,v
retrieving revision 1.1
diff -b -d -u -r1.1 binary_iarchive_impl.hpp
--- boost/archive/binary_iarchive_impl.hpp	4 Feb 2006 20:37:12 -0000	1.1
+++ boost/archive/binary_iarchive_impl.hpp	21 May 2006 22:24:42 -0000
@@ -24,7 +24,7 @@
 namespace boost { 
 namespace archive {
 
-template<class Archive, class Elem, class Tr>
+template<class Archive, class Elem = std::istream::char_type, class Tr = std::istream::traits_type>
 class binary_iarchive_impl : 
     public basic_binary_iprimitive<Archive, Elem, Tr>,
     public basic_binary_iarchive<Archive>