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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)
- #ifndef BOOST_HANA_TEST_AUTO_TRANSFORM_HPP
- #define BOOST_HANA_TEST_AUTO_TRANSFORM_HPP
- #include <boost/hana/assert.hpp>
- #include <boost/hana/equal.hpp>
- #include <boost/hana/transform.hpp>
- #include "test_case.hpp"
- #include <laws/base.hpp>
- TestCase test_transform{[] {
- namespace hana = boost::hana;
- using hana::test::ct_eq;
- struct undefined { };
- constexpr hana::test::_injection<0> f{};
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::transform(MAKE_TUPLE(), undefined{}),
- MAKE_TUPLE()
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::transform(MAKE_TUPLE(ct_eq<1>{}), f),
- MAKE_TUPLE(f(ct_eq<1>{}))
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::transform(MAKE_TUPLE(ct_eq<1>{}, ct_eq<2>{}), f),
- MAKE_TUPLE(f(ct_eq<1>{}), f(ct_eq<2>{}))
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::transform(MAKE_TUPLE(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}), f),
- MAKE_TUPLE(f(ct_eq<1>{}), f(ct_eq<2>{}), f(ct_eq<3>{}))
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::transform(MAKE_TUPLE(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}), f),
- MAKE_TUPLE(f(ct_eq<1>{}), f(ct_eq<2>{}), f(ct_eq<3>{}), f(ct_eq<4>{}))
- ));
- #ifndef MAKE_TUPLE_NO_CONSTEXPR
- struct incr {
- constexpr int operator()(int i) const { return i + 1; }
- };
- static_assert(hana::equal(
- hana::transform(MAKE_TUPLE(1), incr{}),
- MAKE_TUPLE(2)
- ), "");
- static_assert(hana::equal(
- hana::transform(MAKE_TUPLE(1, 2), incr{}),
- MAKE_TUPLE(2, 3)
- ), "");
- static_assert(hana::equal(
- hana::transform(MAKE_TUPLE(1, 2, 3), incr{}),
- MAKE_TUPLE(2, 3, 4)
- ), "");
- static_assert(hana::equal(
- hana::transform(MAKE_TUPLE(1, 2, 3, 4), incr{}),
- MAKE_TUPLE(2, 3, 4, 5)
- ), "");
- #endif
- }};
- #endif // !BOOST_HANA_TEST_AUTO_TRANSFORM_HPP
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