explicit move functions for threads, with a test

[SVN r42087]

test/test_move_function.cpp

@@ -0,0 +1,42 @@
+// Copyright (C) 2007 Anthony Williams
+//
+//  Distributed under the Boost Software License, Version 1.0. (See accompanying 
+//  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#include <boost/thread/thread.hpp>
+#include <boost/test/unit_test.hpp>
+
+void do_nothing()
+{}
+
+void test_thread_move_from_lvalue_on_construction()
+{
+    boost::thread src(do_nothing);
+    boost::thread::id src_id=src.get_id();
+    boost::thread dest=boost::move(src);
+    boost::thread::id dest_id=dest.get_id();
+    BOOST_CHECK(src_id==dest_id);
+    BOOST_CHECK(src.get_id()==boost::thread::id());
+    dest.join();
+}
+
+boost::thread make_thread()
+{
+    return boost::thread(do_nothing);
+}
+
+void test_thread_move_from_function_return()
+{
+    boost::thread x=boost::move(make_thread());
+    x.join();
+}
+
+
+boost::unit_test_framework::test_suite* init_unit_test_suite(int, char*[])
+{
+    boost::unit_test_framework::test_suite* test =
+        BOOST_TEST_SUITE("Boost.Threads: thread move test suite");
+
+    test->add(BOOST_TEST_CASE(test_thread_move_from_lvalue_on_construction));
+    test->add(BOOST_TEST_CASE(test_thread_move_from_function_return));
+    return test;
+}