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b32b8144 | 1 | // Copyright Louis Dionne 2013-2017 |
7c673cae FG |
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/equal.hpp> | |
7 | #include <boost/hana/experimental/view.hpp> | |
8 | #include <boost/hana/integral_constant.hpp> | |
9 | #include <boost/hana/length.hpp> | |
10 | ||
11 | #include <support/seq.hpp> | |
12 | namespace hana = boost::hana; | |
13 | ||
14 | ||
15 | template <int> struct undefined { }; | |
16 | ||
17 | int main() { | |
18 | auto container = ::seq; | |
19 | ||
20 | { | |
21 | auto storage = container(); | |
22 | auto transformed = hana::experimental::transformed(storage, undefined<99>{}); | |
23 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
24 | hana::length(transformed), | |
25 | hana::size_c<0> | |
26 | )); | |
27 | }{ | |
28 | auto storage = container(undefined<0>{}); | |
29 | auto transformed = hana::experimental::transformed(storage, undefined<99>{}); | |
30 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
31 | hana::length(transformed), | |
32 | hana::size_c<1> | |
33 | )); | |
34 | }{ | |
35 | auto storage = container(undefined<0>{}, undefined<1>{}); | |
36 | auto transformed = hana::experimental::transformed(storage, undefined<99>{}); | |
37 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
38 | hana::length(transformed), | |
39 | hana::size_c<2> | |
40 | )); | |
41 | }{ | |
42 | auto storage = container(undefined<0>{}, undefined<1>{}, undefined<2>{}); | |
43 | auto transformed = hana::experimental::transformed(storage, undefined<99>{}); | |
44 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
45 | hana::length(transformed), | |
46 | hana::size_c<3> | |
47 | )); | |
48 | } | |
49 | } |