diff --git a/include/boost/type_traits/config.hpp b/include/boost/type_traits/config.hpp
index 1e00d18..47a0648 100644
--- a/include/boost/type_traits/config.hpp
+++ b/include/boost/type_traits/config.hpp
@@ -13,7 +13,7 @@
 // This header is deprecated and no longer used by type_traits:
 //
 #if defined(__GNUC__) || defined(_MSC_VER)
-# pragma message("NOTE: Use of this header (ice_and.hpp) is deprecated")
+# pragma message("NOTE: Use of this header (boost/type_traits/config.hpp) is deprecated")
 #endif
 
 #endif // BOOST_TT_CONFIG_HPP_INCLUDED
diff --git a/include/boost/type_traits/integral_constant.hpp b/include/boost/type_traits/integral_constant.hpp
index 9eed55c..6c43ece 100644
--- a/include/boost/type_traits/integral_constant.hpp
+++ b/include/boost/type_traits/integral_constant.hpp
@@ -61,6 +61,7 @@ namespace boost{
          static const char data = 0;
          return *reinterpret_cast<const mpl::integral_c<T, val>*>(&data);
       }
+      BOOST_CONSTEXPR operator T() { return val; }
    };
 
    template <bool val>
@@ -74,6 +75,7 @@ namespace boost{
          static const char data = 0;
          return *reinterpret_cast<const mpl::bool_<val>*>(&data);
       }
+      BOOST_CONSTEXPR operator bool() { return val; }
    };
 
    typedef integral_constant<bool, true> true_type;