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9fc2a2f1ac
The rename allows to avoid forming an infinite recursion in compile time (because of noexcept specification that needs to resolve the unqualified call to swap) or run time (in case if the boost::swap function is the only one suitable for the passed arguments). To avoid the compile-time recursion, removed noexcept specification from boost::swap. The specification is still present in boost::core::invoke_swap. Deprecated boost::swap and associated headers. boost::core::invoke_swap is defined in a new boost/core/invoke_swap.hpp header. Updated docs and tests. Removed tests that check inclusion of deprecated headers. Fixes https://github.com/boostorg/core/issues/148.
73 lines
2.2 KiB
C++
73 lines
2.2 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 swap_test_template<int> objects by means of boost::core::invoke_swap.
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#include <boost/core/invoke_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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template <class T>
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class swap_test_template
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{
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public:
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typedef T template_argument;
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swap_test_class swap_test_object;
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};
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template <class T>
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inline bool operator==(const swap_test_template<T> & lhs, const swap_test_template<T> & rhs)
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{
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return lhs.swap_test_object == rhs.swap_test_object;
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}
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template <class T>
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inline bool operator!=(const swap_test_template<T> & lhs, const swap_test_template<T> & rhs)
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{
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return !(lhs == rhs);
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}
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//Provide swap function in the namespace of swap_test_template
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//(which is the global namespace). Note that it isn't allowed to put
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//an overload of this function within the std namespace.
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template <class T>
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void swap(swap_test_template<T>& left, swap_test_template<T>& right)
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{
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left.swap_test_object.swap(right.swap_test_object);
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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_template<int> initial_array1[array_size] = { { swap_test_class(1) }, { swap_test_class(2) } };
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const swap_test_template<int> initial_array2[array_size] = { { swap_test_class(3) }, { swap_test_class(4) } };
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swap_test_template<int> array1[array_size];
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swap_test_template<int> 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::core::invoke_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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