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main
Library/boost/libs/smart_ptr/test/shared_from_raw_test4.cpp
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PatoFlamejanteTV
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19 дек 2024, 19:11
19 дек 2024, 19:11
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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/core/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(); }