ceph/src/boost/libs/smart_ptr/test/shared_from_raw_test4.cpp

   1 //
   2 //  shared_from_raw_test4 - based on esft_void_test.cpp
   3 //
   4 //  Copyright 2009, 2014 Peter Dimov
   5 //
   6 //  Distributed under the Boost Software License, Version 1.0.
   7 //
   8 //  See accompanying file LICENSE_1_0.txt or copy at
   9 //  http://www.boost.org/LICENSE_1_0.txt
  10 //
  11
  12
  13 #include <boost/smart_ptr/enable_shared_from_raw.hpp>
  14 #include <boost/shared_ptr.hpp>
  15 #include <boost/core/lightweight_test.hpp>
  16
  17 //
  18
  19 class X: public boost::enable_shared_from_raw
  20 {
  21 };
  22
  23 int main()
  24 {
  25     boost::shared_ptr< void const volatile > pv( new X );
  26     boost::shared_ptr< void > pv2 = boost::const_pointer_cast< void >( pv );
  27     boost::shared_ptr< X > px = boost::static_pointer_cast< X >( pv2 );
  28
  29     try
  30     {
  31         boost::shared_ptr< X > qx = boost::shared_from_raw( px.get() );
  32
  33         BOOST_TEST( px == qx );
  34         BOOST_TEST( !( px < qx ) && !( qx < px ) );
  35     }
  36     catch( boost::bad_weak_ptr const& )
  37     {
  38         BOOST_ERROR( "shared_from_this( px.get() ) failed" );
  39     }
  40
  41     boost::shared_ptr< X const volatile > px2( px );
  42
  43     try
  44     {
  45         boost::shared_ptr< X const volatile > qx2 = boost::shared_from_raw( px2.get() );
  46
  47         BOOST_TEST( px2 == qx2 );
  48         BOOST_TEST( !( px2 < qx2 ) && !( qx2 < px2 ) );
  49     }
  50     catch( boost::bad_weak_ptr const& )
  51     {
  52         BOOST_ERROR( "shared_from_this( px2.get() ) failed" );
  53     }
  54
  55     return boost::report_errors();
  56 }