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libs/smart_ptr/test/shared_from_raw_test4.cpp

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+//
+//  shared_from_raw_test4 - based on esft_void_test.cpp
+//
+//  Copyright 2009, 2014 Peter Dimov
+//
+//  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/smart_ptr/enable_shared_from_raw.hpp>
+#include <boost/shared_ptr.hpp>
+#include <boost/detail/lightweight_test.hpp>
+
+//
+
+class X: public boost::enable_shared_from_raw
+{
+};
+
+int main()
+{
+    boost::shared_ptr< void const volatile > pv( new X );
+    boost::shared_ptr< void > pv2 = boost::const_pointer_cast< void >( pv );
+    boost::shared_ptr< X > px = boost::static_pointer_cast< X >( pv2 );
+
+    try
+    {
+        boost::shared_ptr< X > qx = boost::shared_from_raw( px.get() );
+
+        BOOST_TEST( px == qx );
+        BOOST_TEST( !( px < qx ) && !( qx < px ) );
+    }
+    catch( boost::bad_weak_ptr const& )
+    {
+        BOOST_ERROR( "shared_from_this( px.get() ) failed" );
+    }
+
+    boost::shared_ptr< X const volatile > px2( px );
+
+    try
+    {
+        boost::shared_ptr< X const volatile > qx2 = boost::shared_from_raw( px2.get() );
+
+        BOOST_TEST( px2 == qx2 );
+        BOOST_TEST( !( px2 < qx2 ) && !( qx2 < px2 ) );
+    }
+    catch( boost::bad_weak_ptr const& )
+    {
+        BOOST_ERROR( "shared_from_this( px2.get() ) failed" );
+    }
+
+    return boost::report_errors();
+}