90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
// Copyright Louis Dionne 2013-2017
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
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#include <boost/hana/assert.hpp>
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#include <boost/hana/equal.hpp>
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#include <boost/hana/tuple.hpp>
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#include <boost/hana/type.hpp>
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#include <boost/hana/unpack.hpp>
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#include <laws/base.hpp>
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namespace hana = boost::hana;
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using hana::test::ct_eq;
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template <typename ...>
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struct F { struct type; };
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struct x0;
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struct x1;
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struct x2;
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struct x3;
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int main() {
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hana::test::_injection<0> f{};
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// tuple
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::unpack(hana::make_tuple(), f),
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f()
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::unpack(hana::make_tuple(ct_eq<0>{}), f),
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f(ct_eq<0>{})
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::unpack(hana::make_tuple(ct_eq<0>{}, ct_eq<1>{}), f),
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f(ct_eq<0>{}, ct_eq<1>{})
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::unpack(hana::make_tuple(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), f),
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f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})
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));
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// tuple_t
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::unpack(hana::tuple_t<>, f),
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f()
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::unpack(hana::tuple_t<x0>, f),
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f(hana::type_c<x0>)
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::unpack(hana::tuple_t<x0, x1>, f),
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f(hana::type_c<x0>, hana::type_c<x1>)
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::unpack(hana::tuple_t<x0, x1, x2>, f),
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f(hana::type_c<x0>, hana::type_c<x1>, hana::type_c<x2>)
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::unpack(hana::tuple_t<x0, x1, x2, x3>, f),
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f(hana::type_c<x0>, hana::type_c<x1>, hana::type_c<x2>, hana::type_c<x3>)
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));
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// tuple_t with metafunction
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auto g = hana::metafunction<F>;
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::unpack(hana::tuple_t<>, g),
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g()
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::unpack(hana::tuple_t<x0>, g),
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g(hana::type_c<x0>)
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::unpack(hana::tuple_t<x0, x1>, g),
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g(hana::type_c<x0>, hana::type_c<x1>)
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::unpack(hana::tuple_t<x0, x1, x2>, g),
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g(hana::type_c<x0>, hana::type_c<x1>, hana::type_c<x2>)
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::unpack(hana::tuple_t<x0, x1, x2, x3>, g),
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g(hana::type_c<x0>, hana::type_c<x1>, hana::type_c<x2>, hana::type_c<x3>)
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));
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}
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