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diff --git a/src/boost/libs/signals2/example/hello_world_multi_slot.cpp b/src/boost/libs/signals2/example/hello_world_multi_slot.cpp
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+++ b/src/boost/libs/signals2/example/hello_world_multi_slot.cpp
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+// Multiple slot hello world example for Boost.Signals2
+// Copyright Douglas Gregor 2001-2004.
+// Copyright Frank Mori Hess 2009.
+//
+// Use, modification and
+// distribution is subject to 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)
+// For more information, see http://www.boost.org
+
+#include <iostream>
+#include <boost/signals2/signal.hpp>
+
+//[ hello_def_code_snippet
+struct Hello
+{
+  void operator()() const
+  {
+    std::cout << "Hello";
+  }
+};
+//]
+
+//[ world_def_code_snippet
+struct World
+{
+  void operator()() const
+  {
+    std::cout << ", World!" << std::endl;
+  }
+};
+//]
+
+int main()
+{
+//[ hello_world_multi_code_snippet
+  boost::signals2::signal<void ()> sig;
+
+  sig.connect(Hello());
+  sig.connect(World());
+
+  sig();
+//]
+
+  return 0;
+}
+