future.cc (future_error_category::message): Handle no_state.

2011-02-10  Jonathan Wakely  <jwakely.gcc@gmail.com>

	* src/future.cc (future_error_category::message): Handle no_state.

From-SVN: r170024

libstdc++-v3/ChangeLog

+2011-02-10  Jonathan Wakely  <jwakely.gcc@gmail.com>
+
+	* src/future.cc (future_error_category::message): Handle no_state.
+
 2011-02-10  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	* testsuite/23_containers/multimap/modifiers/erase/47628.cc: Do

libstdc++-v3/src/future.cc

 // future -*- C++ -*-
 
-// Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+// Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
@@ -48,6 +48,9 @@ namespace
       case std::future_errc::promise_already_satisfied:
           __msg = "Promise already satisfied";
           break;
+      case std::future_errc::no_state:
+          __msg = "No associated state";
+          break;
       default:
           __msg = "Unknown error";
           break;