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- // Copyright Louis Dionne 2013-2017
- // Distributed under the Boost Software License, Version 1.0.
- // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
- #include <boost/hana/assert.hpp>
- #include <boost/hana/equal.hpp>
- #include <boost/hana/transform.hpp>
- #include <boost/hana/tuple.hpp>
- #include <boost/hana/type.hpp>
- namespace hana = boost::hana;
- template <typename ...>
- struct F { struct type; };
- struct x1;
- struct x2;
- struct x3;
- struct x4;
- int main() {
- // transform with tuple_t and a metafunction
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::transform(hana::tuple_t<>, hana::metafunction<F>),
- hana::tuple_t<>
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::transform(hana::tuple_t<x1>, hana::metafunction<F>),
- hana::tuple_t<F<x1>::type>
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::transform(hana::tuple_t<x1, x2>, hana::metafunction<F>),
- hana::tuple_t<F<x1>::type, F<x2>::type>
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::transform(hana::tuple_t<x1, x2, x3>, hana::metafunction<F>),
- hana::tuple_t<F<x1>::type, F<x2>::type, F<x3>::type>
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::transform(hana::tuple_t<x1, x2, x3, x4>, hana::metafunction<F>),
- hana::tuple_t<F<x1>::type, F<x2>::type, F<x3>::type, F<x4>::type>
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::transform(hana::tuple_t<x1, x2, x3, x4>, hana::template_<F>),
- hana::tuple_t<F<x1>, F<x2>, F<x3>, F<x4>>
- ));
- }
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