1 files changed, 16 insertions, 0 deletions
diff --git a/src/boost/libs/thread/test/test_2501.cpp b/src/boost/libs/thread/test/test_2501.cpp
new file mode 100644
index 000000000..c654e7272
--- /dev/null
+++ b/src/boost/libs/thread/test/test_2501.cpp
@@ -0,0 +1,16 @@
+// Copyright (C) 2010 Vicente Botet
+//
+//  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/shared_mutex.hpp>
+#include <boost/thread/locks.hpp>
+
+int main() {
+
+    boost::shared_mutex mtx; boost::upgrade_lock<boost::shared_mutex> lk(mtx);
+
+    boost::upgrade_to_unique_lock<boost::shared_mutex> lk2(lk);
+
+    return 0;
+}