Index: boost/thread/scoped_thread.hpp

===================================================================

--- boost/thread/scoped_thread.hpp	(revision 83938)

+++ boost/thread/scoped_thread.hpp	(working copy)

@@ -171,6 +171,11 @@

       t_.detach();

     }

+    bool joinable() const BOOST_NOEXCEPT

+    {

+      return t_.joinable();

+    }

+

     void join()

     {

       t_.join();