boost::make_shared的问题
boost::shared_ptr<int> = boost::make_shared();
template< class T > boost::shared_ptr< T > make_shared()
{
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), BOOST_SP_MSD( T ) );
boost::detail::sp_ms_deleter< T > * pd = boost::get_deleter< boost::detail::sp_ms_deleter< T > >( pt );
void * pv = pd->address();
::new( pv ) T();
pd->set_initialized();
T * pt2 = static_cast< T* >( pv );
boost::detail::sp_enable_shared_from_this( &pt, pt2, pt2 );
return boost::shared_ptr< T >( pt, pt2 );
}
auto pInt = boost::make_shared<int>();
