Make shared_from_raw and weak_from_raw return consistent values in a constructor, regardless of order, as suggested by Gavin Lambert in #8.

This commit is contained in:
Peter Dimov
2015-01-22 20:47:01 +02:00
parent 75de3dbcf1
commit 3fd53ced83
5 changed files with 139 additions and 5 deletions

View File

@@ -0,0 +1,46 @@
//
// weak_from_raw_test3.cpp
//
// Test that weak_from_raw and shared_from_raw
// return consistent values from a constructor
//
// Copyright (c) 2015 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/weak_ptr.hpp>
#include <boost/core/lightweight_test.hpp>
class X: public boost::enable_shared_from_raw
{
public:
X()
{
boost::weak_ptr<X> p1 = boost::weak_from_raw( this );
BOOST_TEST( !p1.expired() );
boost::weak_ptr<X> p2 = boost::weak_from_raw( this );
BOOST_TEST( !p2.expired() );
BOOST_TEST( !( p1 < p2 ) && !( p2 < p1 ) );
boost::weak_ptr<X> p3 = boost::shared_from_raw( this );
BOOST_TEST( !( p1 < p3 ) && !( p3 < p1 ) );
boost::weak_ptr<X> p4 = boost::weak_from_raw( this );
BOOST_TEST( !p4.expired() );
BOOST_TEST( !( p3 < p4 ) && !( p4 < p3 ) );
BOOST_TEST( !( p1 < p4 ) && !( p4 < p1 ) );
}
};
int main()
{
boost::shared_ptr< X > px( new X );
return boost::report_errors();
}