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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/detail/algorithm.hpp> | |
6 | #include <boost/hana/equal.hpp> | |
7 | #include <boost/hana/less.hpp> | |
8 | #include <boost/hana/mult.hpp> | |
9 | namespace hana = boost::hana; | |
10 | ||
11 | ||
12 | // The algorithms are taken from the suggested implementations on cppreference. | |
13 | // Hence, we assume them to be correct and we only make sure they compile, to | |
14 | // avoid stupid mistakes I could have made when copy/pasting and editing. | |
15 | // | |
16 | // Oh, and we also make sure they can be used in a constexpr context. | |
17 | constexpr bool constexpr_context() { | |
18 | int x = 0, y = 1; | |
19 | hana::detail::constexpr_swap(x, y); | |
20 | ||
21 | int array[6] = {1, 2, 3, 4, 5, 6}; | |
22 | int* first = array; | |
23 | int* last = array + 6; | |
24 | ||
25 | hana::detail::reverse(first, last); | |
26 | ||
27 | hana::detail::next_permutation(first, last, hana::less); | |
28 | hana::detail::next_permutation(first, last); | |
29 | ||
30 | hana::detail::lexicographical_compare(first, last, first, last, hana::less); | |
31 | hana::detail::lexicographical_compare(first, last, first, last); | |
32 | ||
33 | hana::detail::equal(first, last, first, last, hana::equal); | |
34 | hana::detail::equal(first, last, first, last); | |
35 | ||
36 | hana::detail::sort(first, last, hana::equal); | |
37 | hana::detail::sort(first, last); | |
38 | ||
39 | hana::detail::find(first, last, 3); | |
40 | hana::detail::find_if(first, last, hana::equal.to(3)); | |
41 | ||
42 | hana::detail::iota(first, last, 0); | |
43 | ||
44 | hana::detail::count(first, last, 2); | |
45 | ||
46 | hana::detail::accumulate(first, last, 0); | |
47 | hana::detail::accumulate(first, last, 1, hana::mult); | |
48 | ||
49 | hana::detail::min_element(first, last); | |
50 | ||
51 | return true; | |
52 | } | |
53 | ||
54 | static_assert(constexpr_context(), ""); | |
55 | ||
56 | int main() { } |