| // |
| // sp_nullptr_test.cpp |
| // |
| // Copyright 2012 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_ptr.hpp> |
| #include <boost/smart_ptr/detail/sp_nullptr_t.hpp> |
| #include <boost/detail/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; |
| |
| void f( boost::detail::sp_nullptr_t ) |
| { |
| } |
| |
| int main() |
| { |
| { |
| boost::shared_ptr<void> 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_ptr<int> p( nullptr, f ); |
| |
| 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 ) ); |
| } |
| |
| { |
| boost::shared_ptr<int> p( nullptr, f, std::allocator<int>() ); |
| |
| 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 ) ); |
| } |
| |
| { |
| boost::shared_ptr<int> p( new int ); |
| |
| 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_ptr<X> p( new X ); |
| BOOST_TEST( X::instances == 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( 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 |