| // Copyright (c) 2008 Joseph Gauterin, Niels Dekker |
| // |
| // 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) |
| |
| // Tests whether instances of a class from a namespace other than boost are |
| // properly swapped, when both boost and the other namespace have a custom |
| // swap function for that class. Note that it shouldn't be necessary for a class |
| // in an other namespace to have a custom swap function in boost, because the |
| // boost::swap utility should find the swap function in the other namespace, by |
| // argument dependent lookup (ADL). Unfortunately ADL isn't fully implemented |
| // by some specific compiler versions, including Intel C++ 8.1, MSVC 7.1, and |
| // Borland 5.9.3. Users of those compilers might consider adding a swap overload |
| // to the boost namespace. |
| |
| #include <boost/utility/swap.hpp> |
| #define BOOST_INCLUDE_MAIN |
| #include <boost/test/test_tools.hpp> |
| |
| //Put test class in namespace other |
| namespace other |
| { |
| #include "./swap_test_class.hpp" |
| } |
| |
| //Provide swap function in namespace boost |
| namespace boost |
| { |
| void swap(::other::swap_test_class& left, ::other::swap_test_class& right) |
| { |
| left.swap(right); |
| } |
| } |
| |
| //Provide swap function in namespace other |
| namespace other |
| { |
| void swap(swap_test_class& left, swap_test_class& right) |
| { |
| left.swap(right); |
| } |
| } |
| |
| int test_main(int, char*[]) |
| { |
| const other::swap_test_class initial_value1(1); |
| const other::swap_test_class initial_value2(2); |
| |
| other::swap_test_class object1 = initial_value1; |
| other::swap_test_class object2 = initial_value2; |
| |
| other::swap_test_class::reset(); |
| boost::swap(object1,object2); |
| |
| BOOST_CHECK(object1 == initial_value2); |
| BOOST_CHECK(object2 == initial_value1); |
| |
| BOOST_CHECK_EQUAL(other::swap_test_class::swap_count(),1); |
| BOOST_CHECK_EQUAL(other::swap_test_class::copy_count(),0); |
| |
| return 0; |
| } |
| |