1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
// 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)
#include <boost/hana/assert.hpp>
#include <boost/hana/equal.hpp>
#include <boost/hana/experimental/view.hpp>
#include <boost/hana/integral_constant.hpp>
#include <boost/hana/length.hpp>
#include <boost/hana/tuple.hpp>
#include <support/seq.hpp>
namespace hana = boost::hana;
template <int> struct undefined { };
int main() {
auto container = ::seq;
{
auto storage = container();
auto sliced = hana::experimental::sliced(storage, hana::tuple_c<int>);
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::length(sliced),
hana::size_c<0>
));
}
{
auto storage = container(undefined<0>{});
auto sliced = hana::experimental::sliced(storage, hana::tuple_c<int, 0>);
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::length(sliced),
hana::size_c<1>
));
}{
auto storage = container(undefined<0>{});
auto sliced = hana::experimental::sliced(storage, hana::tuple_c<int>);
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::length(sliced),
hana::size_c<0>
));
}
{
auto storage = container(undefined<0>{}, undefined<1>{});
auto sliced = hana::experimental::sliced(storage, hana::tuple_c<int, 0>);
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::length(sliced),
hana::size_c<1>
));
}{
auto storage = container(undefined<0>{}, undefined<1>{});
auto sliced = hana::experimental::sliced(storage, hana::tuple_c<int, 0, 1>);
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::length(sliced),
hana::size_c<2>
));
}{
auto storage = container(undefined<0>{}, undefined<1>{});
auto sliced = hana::experimental::sliced(storage, hana::tuple_c<int, 0, 0>);
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::length(sliced),
hana::size_c<2>
));
}
}
|
