Remove dependency on Iterator

Author: pdimov

include/boost/thread/future.hpp

@@ -63,7 +63,6 @@ struct shared_state_base {
 #include <boost/enable_shared_from_this.hpp>
 #include <boost/exception_ptr.hpp>
 #include <boost/function.hpp>
-#include <boost/next_prior.hpp>
 #include <boost/scoped_array.hpp>
 #include <boost/shared_ptr.hpp>
 #include <boost/smart_ptr/make_shared.hpp>

include/boost/thread/futures/wait_for_any.hpp

@@ -17,7 +17,6 @@
 #include <boost/thread/condition_variable.hpp>
 
 #include <boost/core/enable_if.hpp>
-#include <boost/next_prior.hpp>
 #include <boost/scoped_array.hpp>
 
 #include <iterator>
@@ -155,7 +154,9 @@ namespace boost
     {
       waiter.add(*current);
     }
-    return boost::next(begin, waiter.wait());
+
+    std::advance( begin, waiter.wait() );
+    return begin;
   }
 }