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//
// shared_array nullptr test
//
// Copyright 2012, 2013 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/shared_array.hpp>
#include <boost/core/lightweight_test.hpp>
#include <cstddef>
#include <memory>
#if !defined( BOOST_NO_CXX11_NULLPTR )
struct X
{
static int instances;
X()
{
++instances;
}
~X()
{
--instances;
}
private:
X( X const & );
X & operator=( X const & );
};
int X::instances = 0;
int main()
{
{
boost::shared_array<int> p( nullptr );
BOOST_TEST( p.get() == 0 );
BOOST_TEST( p.use_count() == 0 );
BOOST_TEST( p == nullptr );
BOOST_TEST( nullptr == p );
BOOST_TEST( !( p != nullptr ) );
BOOST_TEST( !( nullptr != p ) );
}
{
boost::shared_array<int> p( new int[ 1 ] );
BOOST_TEST( p.get() != 0 );
BOOST_TEST( p.use_count() == 1 );
BOOST_TEST( p != nullptr );
BOOST_TEST( nullptr != p );
BOOST_TEST( !( p == nullptr ) );
BOOST_TEST( !( nullptr == p ) );
p = nullptr;
BOOST_TEST( p.get() == 0 );
BOOST_TEST( p.use_count() == 0 );
BOOST_TEST( p == nullptr );
BOOST_TEST( nullptr == p );
BOOST_TEST( !( p != nullptr ) );
BOOST_TEST( !( nullptr != p ) );
}
{
BOOST_TEST( X::instances == 0 );
boost::shared_array<X> p( new X[ 2 ] );
BOOST_TEST( X::instances == 2 );
BOOST_TEST( p.get() != 0 );
BOOST_TEST( p.use_count() == 1 );
BOOST_TEST( p != nullptr );
BOOST_TEST( nullptr != p );
BOOST_TEST( !( p == nullptr ) );
BOOST_TEST( !( nullptr == p ) );
p = nullptr;
BOOST_TEST( X::instances == 0 );
BOOST_TEST( p.get() == 0 );
BOOST_TEST( p.use_count() == 0 );
BOOST_TEST( p == nullptr );
BOOST_TEST( nullptr == p );
BOOST_TEST( !( p != nullptr ) );
BOOST_TEST( !( nullptr != p ) );
}
return boost::report_errors();
}
#else
int main()
{
return 0;
}
#endif
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