| // 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 swapping an array of arrays of swap_test_class objects by means of boost::swap. |
| |
| #include <boost/utility/swap.hpp> |
| #define BOOST_INCLUDE_MAIN |
| #include <boost/test/test_tools.hpp> |
| |
| //Put test class in the global namespace |
| #include "./swap_test_class.hpp" |
| |
| #include <algorithm> //for std::copy and std::equal |
| #include <cstddef> //for std::size_t |
| |
| //Provide swap function in both the namespace of swap_test_class |
| //(which is the global namespace), and the std namespace. |
| //It's common to provide a swap function for a class in both |
| //namespaces. Scott Meyers recommends doing so: Effective C++, |
| //Third Edition, item 25, "Consider support for a non-throwing swap". |
| void swap(swap_test_class& left, swap_test_class& right) |
| { |
| left.swap(right); |
| } |
| |
| namespace std |
| { |
| template <> |
| void swap(swap_test_class& left, swap_test_class& right) |
| { |
| left.swap(right); |
| } |
| } |
| |
| |
| int test_main(int, char*[]) |
| { |
| const std::size_t first_dimension = 3; |
| const std::size_t second_dimension = 4; |
| const std::size_t number_of_elements = first_dimension * second_dimension; |
| |
| swap_test_class array1[first_dimension][second_dimension]; |
| swap_test_class array2[first_dimension][second_dimension]; |
| |
| swap_test_class* const ptr1 = array1[0]; |
| swap_test_class* const ptr2 = array2[0]; |
| |
| for (std::size_t i = 0; i < number_of_elements; ++i) |
| { |
| ptr1[i].set_data( static_cast<int>(i) ); |
| ptr2[i].set_data( static_cast<int>(i + number_of_elements) ); |
| } |
| |
| boost::swap(array1, array2); |
| |
| for (std::size_t i = 0; i < number_of_elements; ++i) |
| { |
| BOOST_CHECK_EQUAL(ptr1[i].get_data(), static_cast<int>(i + number_of_elements) ); |
| BOOST_CHECK_EQUAL(ptr2[i].get_data(), static_cast<int>(i) ); |
| } |
| |
| BOOST_CHECK_EQUAL(swap_test_class::swap_count(), number_of_elements); |
| BOOST_CHECK_EQUAL(swap_test_class::copy_count(), 0); |
| |
| return 0; |
| } |