// 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) // boost::swap internally does an unqualified function call to swap. // This could have led to ambiguity or infinite recursion, when the // objects to be swapped would themselves be from the boost namespace. // If so, boost::swap itself might be found by argument dependent lookup. // The implementation of boost::swap resolves this issue by giving // boost::swap two template argumetns, thereby making it less specialized // than std::swap. #include #include #define BOOST_CHECK BOOST_TEST #define BOOST_CHECK_EQUAL BOOST_TEST_EQ //Put test class in namespace boost namespace boost { #include "./swap_test_class.hpp" } int main() { const boost::swap_test_class initial_value1(1); const boost::swap_test_class initial_value2(2); boost::swap_test_class object1 = initial_value1; boost::swap_test_class object2 = initial_value2; boost::swap_test_class::reset(); boost::swap(object1,object2); BOOST_CHECK(object1 == initial_value2); BOOST_CHECK(object2 == initial_value1); BOOST_CHECK_EQUAL(boost::swap_test_class::swap_count(),0); BOOST_CHECK_EQUAL(boost::swap_test_class::copy_count(),3); return boost::report_errors(); }