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- // Copyright Abel Sinkovics (abel@sinkovics.hu) 2015.
- // 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)
- #include <boost/metaparse/v1/swap.hpp>
- #include <boost/type_traits/is_same.hpp>
- #include <boost/mpl/assert.hpp>
- #include "test_case.hpp"
- namespace
- {
- struct returns_first
- {
- typedef returns_first type;
- template <class A, class>
- struct apply
- {
- typedef A type;
- };
- };
- struct returns_second
- {
- typedef returns_second type;
- template <class, class B>
- struct apply
- {
- typedef B type;
- };
- };
- }
- BOOST_METAPARSE_TEST_CASE(swap)
- {
- using boost::metaparse::v1::swap;
- using boost::is_same;
- BOOST_MPL_ASSERT((
- is_same<double, swap<returns_first>::apply<int, double>::type>
- ));
- BOOST_MPL_ASSERT((
- is_same<int, swap<returns_second>::apply<int, double>::type>
- ));
- }
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