1// Copyright Louis Dionne 2013-2022
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#include <boost/hana/assert.hpp>
6#include <boost/hana/detail/unpack_flatten.hpp>
7#include <boost/hana/equal.hpp>
8#include <boost/hana/tuple.hpp>
9
10#include <laws/base.hpp>
11namespace hana = boost::hana;
12using hana::test::ct_eq;
13
14
15int main() {
16 constexpr auto f = hana::test::_injection<0>{};
17
18 {
19 auto tuples = hana::make_tuple();
20 BOOST_HANA_CONSTANT_CHECK(hana::equal(
21 hana::detail::unpack_flatten(tuples, f),
22 f()
23 ));
24 }
25
26 {
27 auto tuples = hana::make_tuple(hana::make_tuple());
28 BOOST_HANA_CONSTANT_CHECK(hana::equal(
29 hana::detail::unpack_flatten(tuples, f),
30 f()
31 ));
32 }
33
34 {
35 auto tuples = hana::make_tuple(hana::make_tuple(), hana::make_tuple());
36 BOOST_HANA_CONSTANT_CHECK(hana::equal(
37 hana::detail::unpack_flatten(tuples, f),
38 f()
39 ));
40 }
41
42 {
43 auto tuples = hana::make_tuple(hana::make_tuple(),
44 hana::make_tuple(),
45 hana::make_tuple());
46 BOOST_HANA_CONSTANT_CHECK(hana::equal(
47 hana::detail::unpack_flatten(tuples, f),
48 f()
49 ));
50 }
51
52 {
53 auto tuples = hana::make_tuple(hana::make_tuple(ct_eq<0>{}));
54 BOOST_HANA_CONSTANT_CHECK(hana::equal(
55 hana::detail::unpack_flatten(tuples, f),
56 f(ct_eq<0>{})
57 ));
58 }
59
60 {
61 auto tuples = hana::make_tuple(hana::make_tuple(ct_eq<0>{}, ct_eq<1>{}));
62 BOOST_HANA_CONSTANT_CHECK(hana::equal(
63 hana::detail::unpack_flatten(tuples, f),
64 f(ct_eq<0>{}, ct_eq<1>{})
65 ));
66 }
67
68 {
69 auto tuples = hana::make_tuple(hana::make_tuple(),
70 hana::make_tuple(ct_eq<0>{}));
71 BOOST_HANA_CONSTANT_CHECK(hana::equal(
72 hana::detail::unpack_flatten(tuples, f),
73 f(ct_eq<0>{})
74 ));
75 }
76
77 {
78 auto tuples = hana::make_tuple(hana::make_tuple(),
79 hana::make_tuple(ct_eq<0>{}, ct_eq<1>{}));
80 BOOST_HANA_CONSTANT_CHECK(hana::equal(
81 hana::detail::unpack_flatten(tuples, f),
82 f(ct_eq<0>{}, ct_eq<1>{})
83 ));
84 }
85
86 {
87 auto tuples = hana::make_tuple(hana::make_tuple(ct_eq<0>{}),
88 hana::make_tuple(ct_eq<1>{}));
89 BOOST_HANA_CONSTANT_CHECK(hana::equal(
90 hana::detail::unpack_flatten(tuples, f),
91 f(ct_eq<0>{}, ct_eq<1>{})
92 ));
93 }
94
95 {
96 auto tuples = hana::make_tuple(hana::make_tuple(ct_eq<0>{}),
97 hana::make_tuple(ct_eq<1>{}),
98 hana::make_tuple(ct_eq<2>{}));
99 BOOST_HANA_CONSTANT_CHECK(hana::equal(
100 hana::detail::unpack_flatten(tuples, f),
101 f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})
102 ));
103 }
104
105 {
106 auto tuples = hana::make_tuple(hana::make_tuple(ct_eq<0>{}),
107 hana::make_tuple(ct_eq<1>{}),
108 hana::make_tuple(ct_eq<2>{}, ct_eq<3>{}));
109 BOOST_HANA_CONSTANT_CHECK(hana::equal(
110 hana::detail::unpack_flatten(tuples, f),
111 f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
112 ));
113 }
114}
115

source code of boost/libs/hana/test/detail/unpack_flatten.cpp