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1 | // Copyright Louis Dionne 2013-2016 |
2 | // Distributed under the Boost Software License, Version 1.0. | |
3 | // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) | |
4 | ||
5 | #ifndef BOOST_HANA_TEST_AUTO_TAKE_BACK_HPP | |
6 | #define BOOST_HANA_TEST_AUTO_TAKE_BACK_HPP | |
7 | ||
8 | #include <boost/hana/assert.hpp> | |
9 | #include <boost/hana/equal.hpp> | |
10 | #include <boost/hana/integral_constant.hpp> | |
11 | #include <boost/hana/take_back.hpp> | |
12 | ||
13 | #include "test_case.hpp" | |
14 | #include <laws/base.hpp> | |
15 | ||
16 | ||
17 | TestCase test_take_back{[]{ | |
18 | namespace hana = boost::hana; | |
19 | using hana::test::ct_eq; | |
20 | ||
21 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
22 | hana::take_back(MAKE_TUPLE(), hana::size_c<0>), | |
23 | MAKE_TUPLE() | |
24 | )); | |
25 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
26 | hana::take_back(MAKE_TUPLE(), hana::size_c<1>), | |
27 | MAKE_TUPLE() | |
28 | )); | |
29 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
30 | hana::take_back(MAKE_TUPLE(), hana::size_c<2>), | |
31 | MAKE_TUPLE() | |
32 | )); | |
33 | ||
34 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
35 | hana::take_back(MAKE_TUPLE(ct_eq<0>{}), hana::size_c<0>), | |
36 | MAKE_TUPLE() | |
37 | )); | |
38 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
39 | hana::take_back(MAKE_TUPLE(ct_eq<0>{}), hana::size_c<1>), | |
40 | MAKE_TUPLE(ct_eq<0>{}) | |
41 | )); | |
42 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
43 | hana::take_back(MAKE_TUPLE(ct_eq<0>{}), hana::size_c<2>), | |
44 | MAKE_TUPLE(ct_eq<0>{}) | |
45 | )); | |
46 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
47 | hana::take_back(MAKE_TUPLE(ct_eq<0>{}), hana::size_c<3>), | |
48 | MAKE_TUPLE(ct_eq<0>{}) | |
49 | )); | |
50 | ||
51 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
52 | hana::take_back(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}), hana::size_c<0>), | |
53 | MAKE_TUPLE() | |
54 | )); | |
55 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
56 | hana::take_back(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}), hana::size_c<1>), | |
57 | MAKE_TUPLE(ct_eq<1>{}) | |
58 | )); | |
59 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
60 | hana::take_back(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}), hana::size_c<2>), | |
61 | MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}) | |
62 | )); | |
63 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
64 | hana::take_back(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}), hana::size_c<3>), | |
65 | MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}) | |
66 | )); | |
67 | ||
68 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
69 | hana::take_back(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}), hana::size_c<3>), | |
70 | MAKE_TUPLE(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}) | |
71 | )); | |
72 | ||
73 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
74 | hana::take_back(MAKE_TUPLE( | |
75 | ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}, | |
76 | ct_eq<5>{}, ct_eq<6>{}, ct_eq<7>{}, ct_eq<8>{}, ct_eq<9>{}), | |
77 | hana::size_c<5>), | |
78 | MAKE_TUPLE(ct_eq<5>{}, ct_eq<6>{}, ct_eq<7>{}, ct_eq<8>{}, ct_eq<9>{}) | |
79 | )); | |
80 | }}; | |
81 | ||
82 | #endif // !BOOST_HANA_TEST_AUTO_TAKE_BACK_HPP |