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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/tuple.hpp>
- #include <boost/hana/type.hpp>
- #include <boost/hana/unpack.hpp>
- #include <laws/base.hpp>
- namespace hana = boost::hana;
- using hana::test::ct_eq;
- template <typename ...>
- struct F { struct type; };
- struct x0;
- struct x1;
- struct x2;
- struct x3;
- int main() {
- hana::test::_injection<0> f{};
- // tuple
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::unpack(hana::make_tuple(), f),
- f()
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::unpack(hana::make_tuple(ct_eq<0>{}), f),
- f(ct_eq<0>{})
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::unpack(hana::make_tuple(ct_eq<0>{}, ct_eq<1>{}), f),
- f(ct_eq<0>{}, ct_eq<1>{})
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::unpack(hana::make_tuple(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), f),
- f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})
- ));
- // tuple_t
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::unpack(hana::tuple_t<>, f),
- f()
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::unpack(hana::tuple_t<x0>, f),
- f(hana::type_c<x0>)
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::unpack(hana::tuple_t<x0, x1>, f),
- f(hana::type_c<x0>, hana::type_c<x1>)
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::unpack(hana::tuple_t<x0, x1, x2>, f),
- f(hana::type_c<x0>, hana::type_c<x1>, hana::type_c<x2>)
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::unpack(hana::tuple_t<x0, x1, x2, x3>, f),
- f(hana::type_c<x0>, hana::type_c<x1>, hana::type_c<x2>, hana::type_c<x3>)
- ));
- // tuple_t with metafunction
- auto g = hana::metafunction<F>;
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::unpack(hana::tuple_t<>, g),
- g()
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::unpack(hana::tuple_t<x0>, g),
- g(hana::type_c<x0>)
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::unpack(hana::tuple_t<x0, x1>, g),
- g(hana::type_c<x0>, hana::type_c<x1>)
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::unpack(hana::tuple_t<x0, x1, x2>, g),
- g(hana::type_c<x0>, hana::type_c<x1>, hana::type_c<x2>)
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::unpack(hana::tuple_t<x0, x1, x2, x3>, g),
- g(hana::type_c<x0>, hana::type_c<x1>, hana::type_c<x2>, hana::type_c<x3>)
- ));
- }
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