| // |
| // pointer_cast_test2.cpp - a test for unique_ptr casts |
| // |
| // Copyright 2016 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/config.hpp> |
| |
| #if defined( BOOST_NO_CXX11_SMART_PTR ) |
| |
| int main() |
| { |
| return 0; |
| } |
| |
| #else |
| |
| #include <boost/pointer_cast.hpp> |
| #include <boost/core/lightweight_test.hpp> |
| #include <memory> |
| |
| struct B1 |
| { |
| }; |
| |
| struct D1: B1 |
| { |
| ~D1() |
| { |
| } |
| }; |
| |
| static void test_static_cast() |
| { |
| { |
| std::unique_ptr<int> p1( new int ); |
| int * q1 = p1.get(); |
| |
| std::unique_ptr<int> p2 = boost::static_pointer_cast<int>( std::move( p1 ) ); |
| |
| BOOST_TEST( p1.get() == 0 ); |
| BOOST_TEST_EQ( p2.get(), q1 ); |
| } |
| |
| { |
| std::unique_ptr<int> p1( new int ); |
| int * q1 = p1.get(); |
| |
| std::unique_ptr<int const> p2 = boost::static_pointer_cast<int const>( std::move( p1 ) ); |
| |
| BOOST_TEST( p1.get() == 0 ); |
| BOOST_TEST_EQ( p2.get(), q1 ); |
| } |
| |
| { |
| std::unique_ptr<int[]> p1( new int[ 1 ] ); |
| int * q1 = p1.get(); |
| |
| std::unique_ptr<int[]> p2 = boost::static_pointer_cast<int[]>( std::move( p1 ) ); |
| |
| BOOST_TEST( p1.get() == 0 ); |
| BOOST_TEST_EQ( p2.get(), q1 ); |
| } |
| |
| { |
| std::unique_ptr<int[]> p1( new int[ 1 ] ); |
| int * q1 = p1.get(); |
| |
| std::unique_ptr<int const[]> p2 = boost::static_pointer_cast<int const[]>( std::move( p1 ) ); |
| |
| BOOST_TEST( p1.get() == 0 ); |
| BOOST_TEST_EQ( p2.get(), q1 ); |
| } |
| |
| { |
| std::unique_ptr<D1> p1( new D1 ); |
| D1 * q1 = p1.get(); |
| |
| std::unique_ptr<B1> p2 = boost::static_pointer_cast<B1>( std::move( p1 ) ); |
| |
| BOOST_TEST( p1.get() == 0 ); |
| BOOST_TEST_EQ( p2.get(), q1 ); |
| |
| std::unique_ptr<D1> p3 = boost::static_pointer_cast<D1>( std::move( p2 ) ); |
| |
| BOOST_TEST( p2.get() == 0 ); |
| BOOST_TEST_EQ( p3.get(), q1 ); |
| } |
| } |
| |
| static void test_const_cast() |
| { |
| { |
| std::unique_ptr<int> p1( new int ); |
| int * q1 = p1.get(); |
| |
| std::unique_ptr<int const> p2 = boost::const_pointer_cast<int const>( std::move( p1 ) ); |
| |
| BOOST_TEST( p1.get() == 0 ); |
| BOOST_TEST_EQ( p2.get(), q1 ); |
| |
| std::unique_ptr<int> p3 = boost::const_pointer_cast<int>( std::move( p2 ) ); |
| |
| BOOST_TEST( p2.get() == 0 ); |
| BOOST_TEST_EQ( p3.get(), q1 ); |
| } |
| |
| { |
| std::unique_ptr<int[]> p1( new int[ 1 ] ); |
| int * q1 = p1.get(); |
| |
| std::unique_ptr<int const[]> p2 = boost::const_pointer_cast<int const[]>( std::move( p1 ) ); |
| |
| BOOST_TEST( p1.get() == 0 ); |
| BOOST_TEST_EQ( p2.get(), q1 ); |
| |
| std::unique_ptr<int[]> p3 = boost::const_pointer_cast<int[]>( std::move( p2 ) ); |
| |
| BOOST_TEST( p2.get() == 0 ); |
| BOOST_TEST_EQ( p3.get(), q1 ); |
| } |
| } |
| |
| struct B2 |
| { |
| virtual ~B2() |
| { |
| } |
| }; |
| |
| struct C2 |
| { |
| virtual ~C2() |
| { |
| } |
| }; |
| |
| struct D2: B2, C2 |
| { |
| }; |
| |
| static void test_dynamic_cast() |
| { |
| { |
| std::unique_ptr<D2> p1( new D2 ); |
| D2 * q1 = p1.get(); |
| |
| std::unique_ptr<B2> p2 = boost::dynamic_pointer_cast<B2>( std::move( p1 ) ); |
| |
| BOOST_TEST( p1.get() == 0 ); |
| BOOST_TEST_EQ( p2.get(), q1 ); |
| } |
| |
| { |
| std::unique_ptr<B2> p1( new D2 ); |
| B2 * q1 = p1.get(); |
| |
| std::unique_ptr<D2> p2 = boost::dynamic_pointer_cast<D2>( std::move( p1 ) ); |
| |
| BOOST_TEST( p1.get() == 0 ); |
| BOOST_TEST_EQ( p2.get(), q1 ); |
| } |
| |
| { |
| std::unique_ptr<B2> p1( new B2 ); |
| B2 * q1 = p1.get(); |
| |
| std::unique_ptr<D2> p2 = boost::dynamic_pointer_cast<D2>( std::move( p1 ) ); |
| |
| BOOST_TEST( p2.get() == 0 ); |
| BOOST_TEST_EQ( p1.get(), q1 ); |
| } |
| |
| { |
| D2 * q1 = new D2; |
| std::unique_ptr<B2> p1( q1 ); |
| |
| std::unique_ptr<C2> p2 = boost::dynamic_pointer_cast<C2>( std::move( p1 ) ); |
| |
| BOOST_TEST( p1.get() == 0 ); |
| BOOST_TEST_EQ( p2.get(), q1 ); |
| } |
| } |
| |
| static void test_reinterpret_cast() |
| { |
| { |
| std::unique_ptr<int> p1( new int ); |
| void * q1 = p1.get(); |
| |
| std::unique_ptr<char> p2 = boost::reinterpret_pointer_cast<char>( std::move( p1 ) ); |
| |
| BOOST_TEST( p1.get() == 0 ); |
| BOOST_TEST_EQ( p2.get(), q1 ); |
| |
| p1 = boost::reinterpret_pointer_cast<int>( std::move( p2 ) ); |
| |
| BOOST_TEST( p2.get() == 0 ); |
| BOOST_TEST_EQ( p1.get(), q1 ); |
| } |
| |
| { |
| std::unique_ptr<int> p1( new int ); |
| void * q1 = p1.get(); |
| |
| std::unique_ptr<char[]> p2 = boost::reinterpret_pointer_cast<char[]>( std::move( p1 ) ); |
| |
| BOOST_TEST( p1.get() == 0 ); |
| BOOST_TEST_EQ( p2.get(), q1 ); |
| |
| p1 = boost::reinterpret_pointer_cast<int>( std::move( p2 ) ); |
| |
| BOOST_TEST( p2.get() == 0 ); |
| BOOST_TEST_EQ( p1.get(), q1 ); |
| } |
| |
| { |
| std::unique_ptr<int[]> p1( new int[ 1 ] ); |
| void * q1 = p1.get(); |
| |
| std::unique_ptr<char[]> p2 = boost::reinterpret_pointer_cast<char[]>( std::move( p1 ) ); |
| |
| BOOST_TEST( p1.get() == 0 ); |
| BOOST_TEST_EQ( p2.get(), q1 ); |
| |
| p1 = boost::reinterpret_pointer_cast<int[]>( std::move( p2 ) ); |
| |
| BOOST_TEST( p2.get() == 0 ); |
| BOOST_TEST_EQ( p1.get(), q1 ); |
| } |
| } |
| |
| int main() |
| { |
| test_static_cast(); |
| test_const_cast(); |
| test_dynamic_cast(); |
| test_reinterpret_cast(); |
| |
| return boost::report_errors(); |
| } |
| |
| #endif |