63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
// Copyright (c) 2008 Joseph Gauterin, Niels Dekker
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// Tests swapping an array of arrays of swap_test_class objects by means of boost::swap.
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#include <boost/utility/swap.hpp>
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#include <boost/core/lightweight_test.hpp>
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#define BOOST_CHECK BOOST_TEST
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#define BOOST_CHECK_EQUAL BOOST_TEST_EQ
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//Put test class in the global namespace
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#include "./swap_test_class.hpp"
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#include <algorithm> //for std::copy and std::equal
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#include <cstddef> //for std::size_t
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//Provide swap function in both the namespace of swap_test_class
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//(which is the global namespace), and the std namespace.
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//It's common to provide a swap function for a class in both
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//namespaces. Scott Meyers recommends doing so: Effective C++,
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//Third Edition, item 25, "Consider support for a non-throwing swap".
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void swap(swap_test_class& left, swap_test_class& right)
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{
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left.swap(right);
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}
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namespace std
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{
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template <>
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void swap(swap_test_class& left, swap_test_class& right)
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{
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left.swap(right);
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}
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}
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int main()
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{
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const std::size_t array_size = 2;
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const swap_test_class initial_array1[array_size] = { swap_test_class(1), swap_test_class(2) };
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const swap_test_class initial_array2[array_size] = { swap_test_class(3), swap_test_class(4) };
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swap_test_class array1[array_size];
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swap_test_class array2[array_size];
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std::copy(initial_array1, initial_array1 + array_size, array1);
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std::copy(initial_array2, initial_array2 + array_size, array2);
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swap_test_class::reset();
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boost::swap(array1, array2);
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BOOST_CHECK(std::equal(array1, array1 + array_size, initial_array2));
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BOOST_CHECK(std::equal(array2, array2 + array_size, initial_array1));
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BOOST_CHECK_EQUAL(swap_test_class::swap_count(), array_size);
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BOOST_CHECK_EQUAL(swap_test_class::copy_count(), 0);
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return boost::report_errors();
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}
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