1 // Copyright Louis Dionne 2013-2017
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_SPAN_HPP
6 #define BOOST_HANA_TEST_AUTO_SPAN_HPP
7
8 #include <boost/hana/assert.hpp>
9 #include <boost/hana/equal.hpp>
10 #include <boost/hana/span.hpp>
11
12 #include "test_case.hpp"
13 #include <laws/base.hpp>
14 #include <support/minimal_product.hpp>
15
16
__anon56bcd1ea0102null17 TestCase test_span{[]{
18 namespace hana = boost::hana;
19 using hana::test::ct_eq;
20
21 auto z = ct_eq<999>{};
22 auto pair = ::minimal_product;
23
24 BOOST_HANA_CONSTANT_CHECK(hana::equal(
25 hana::span(MAKE_TUPLE(), hana::equal.to(z)),
26 pair(MAKE_TUPLE(), MAKE_TUPLE())
27 ));
28
29 BOOST_HANA_CONSTANT_CHECK(hana::equal(
30 hana::span(MAKE_TUPLE(ct_eq<0>{}), hana::equal.to(z)),
31 pair(MAKE_TUPLE(), MAKE_TUPLE(ct_eq<0>{}))
32 ));
33 BOOST_HANA_CONSTANT_CHECK(hana::equal(
34 hana::span(MAKE_TUPLE(z), hana::equal.to(z)),
35 pair(MAKE_TUPLE(z), MAKE_TUPLE())
36 ));
37
38 BOOST_HANA_CONSTANT_CHECK(hana::equal(
39 hana::span(MAKE_TUPLE(ct_eq<0>{}, z), hana::equal.to(z)),
40 pair(MAKE_TUPLE(), MAKE_TUPLE(ct_eq<0>{}, z))
41 ));
42 BOOST_HANA_CONSTANT_CHECK(hana::equal(
43 hana::span(MAKE_TUPLE(z, ct_eq<0>{}), hana::equal.to(z)),
44 pair(MAKE_TUPLE(z), MAKE_TUPLE(ct_eq<0>{}))
45 ));
46 BOOST_HANA_CONSTANT_CHECK(hana::equal(
47 hana::span(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}), hana::equal.to(z)),
48 pair(MAKE_TUPLE(), MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}))
49 ));
50
51 BOOST_HANA_CONSTANT_CHECK(hana::equal(
52 hana::span(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), hana::equal.to(z)),
53 pair(MAKE_TUPLE(), MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}))
54 ));
55 BOOST_HANA_CONSTANT_CHECK(hana::equal(
56 hana::span(MAKE_TUPLE(z, ct_eq<1>{}, ct_eq<2>{}), hana::equal.to(z)),
57 pair(MAKE_TUPLE(z), MAKE_TUPLE(ct_eq<1>{}, ct_eq<2>{}))
58 ));
59 BOOST_HANA_CONSTANT_CHECK(hana::equal(
60 hana::span(MAKE_TUPLE(ct_eq<0>{}, z, ct_eq<2>{}), hana::equal.to(z)),
61 pair(MAKE_TUPLE(), MAKE_TUPLE(ct_eq<0>{}, z, ct_eq<2>{}))
62 ));
63 BOOST_HANA_CONSTANT_CHECK(hana::equal(
64 hana::span(MAKE_TUPLE(z, z, ct_eq<2>{}), hana::equal.to(z)),
65 pair(MAKE_TUPLE(z, z), MAKE_TUPLE(ct_eq<2>{}))
66 ));
67 BOOST_HANA_CONSTANT_CHECK(hana::equal(
68 hana::span(MAKE_TUPLE(z, z, z), hana::equal.to(z)),
69 pair(MAKE_TUPLE(z, z, z), MAKE_TUPLE())
70 ));
71
72 // span.by
73 BOOST_HANA_CONSTANT_CHECK(hana::equal(
74 hana::span.by(hana::equal.to(z), MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})),
75 hana::span(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), hana::equal.to(z))
76 ));
77
78 BOOST_HANA_CONSTANT_CHECK(hana::equal(
79 hana::span.by(hana::equal.to(z))(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})),
80 hana::span(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), hana::equal.to(z))
81 ));
82 }};
83
84 #endif // !BOOST_HANA_TEST_AUTO_SPAN_HPP
85