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

   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/detail/lightweight_test.hpp>
  15
  16 //
  17
  18 class X: public boost::enable_shared_from_this<X>
  19 {
  20 };
  21
  22 int 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 }