1 // 2 // esft_void_test.cpp 3 // 4 // Copyright 2009 Peter Dimov 5 // 6 // Distributed under the Boost Software License, Version 1.0. 7 // See accompanying file LICENSE_1_0.txt or copy at 8 // http://www.boost.org/LICENSE_1_0.txt 9 // 10 11 12 #include <boost/enable_shared_from_this.hpp> 13 #include <boost/shared_ptr.hpp> 14 #include <boost/core/lightweight_test.hpp> 15 16 // 17 18 class X: public boost::enable_shared_from_this<X> 19 { 20 }; 21 main()22int main() 23 { 24 boost::shared_ptr< void const volatile > pv( new X ); 25 boost::shared_ptr< void > pv2 = boost::const_pointer_cast< void >( pv ); 26 boost::shared_ptr< X > px = boost::static_pointer_cast< X >( pv2 ); 27 28 try 29 { 30 boost::shared_ptr< X > qx = px->shared_from_this(); 31 32 BOOST_TEST( px == qx ); 33 BOOST_TEST( !( px < qx ) && !( qx < px ) ); 34 } 35 catch( boost::bad_weak_ptr const& ) 36 { 37 BOOST_ERROR( "px->shared_from_this() failed" ); 38 } 39 40 return boost::report_errors(); 41 } 42