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