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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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