update boost to 1.44

[features.git] / boost / boost / optional / optional.hpp

diff --git a/boost/boost/optional/optional.hpp b/boost/boost/optional/optional.hpp
index 42277ba61e5fd462cd18e55ae772c2e03215655c..88041d1441ddf0a5d6e3b0a8779a2b4e77ab099a 100644 (file)
--- a/boost/boost/optional/optional.hpp
+++ b/boost/boost/optional/optional.hpp
@@ -4,7 +4,7 @@
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 //
-// See http://www.boost.org/lib/optional for documentation.
+// See http://www.boost.org/libs/optional for documentation.
 //
 // You are welcome to contact the author at:
 //  fernando_cacciola@hotmail.com
@@ -168,8 +168,10 @@ class optional_base : public optional_tag
 
     typedef BOOST_DEDUCED_TYPENAME is_reference<T>::type is_reference_predicate ;
 
+  public:
     typedef BOOST_DEDUCED_TYPENAME mpl::if_<is_reference_predicate,types_when_ref,types_when_not_ref>::type types ;
 
+  protected:
     typedef bool (this_type::*unspecified_bool_type)() const;
 
     typedef BOOST_DEDUCED_TYPENAME types::reference_type       reference_type ;