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+//  local_free_on_exit.hpp  ------------------------------------------------------------//
+
+//  Copyright (c) 2003-2010 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//  Copyright (c) 2010 Beman Dawes
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  This is derived from boost/asio/detail/local_free_on_block_exit.hpp to avoid
+//  a dependency on asio. Thanks to Chris Kohlhoff for pointing it out.
+
+#ifndef BOOST_SYSTEM_LOCAL_FREE_ON_EXIT_HPP
+#define BOOST_SYSTEM_LOCAL_FREE_ON_EXIT_HPP
+
+namespace boost {
+namespace system {
+namespace detail {
+
+class local_free_on_destruction
+{
+public:
+  explicit local_free_on_destruction(void* p)
+    : p_(p) {}
+
+  ~local_free_on_destruction()
+  {
+    ::LocalFree(p_);
+  }
+
+private:
+  void* p_;
+  local_free_on_destruction(const local_free_on_destruction&);  // = deleted
+  local_free_on_destruction& operator=(const local_free_on_destruction&);  // = deleted
+};
+
+} // namespace detail
+} // namespace system
+} // namespace boost
+
+#endif  // BOOST_SYSTEM_LOCAL_FREE_ON_EXIT_HPP