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/equal.hpp>
7#include <boost/hana/integral_constant.hpp>
8#include <boost/hana/string.hpp>
9namespace hana = boost::hana;
10
11
12int main() {
13 BOOST_HANA_CONSTANT_CHECK(hana::equal(
14 hana::make<hana::string_tag>(),
15 hana::string_c<>
16 ));
17 BOOST_HANA_CONSTANT_CHECK(hana::equal(
18 hana::make<hana::string_tag>(hana::char_c<'a'>),
19 hana::string_c<'a'>
20 ));
21 BOOST_HANA_CONSTANT_CHECK(hana::equal(
22 hana::make<hana::string_tag>(hana::char_c<'a'>, hana::char_c<'b'>),
23 hana::string_c<'a', 'b'>
24 ));
25 BOOST_HANA_CONSTANT_CHECK(hana::equal(
26 hana::make<hana::string_tag>(hana::char_c<'a'>, hana::char_c<'b'>, hana::char_c<'c'>),
27 hana::string_c<'a', 'b', 'c'>
28 ));
29 BOOST_HANA_CONSTANT_CHECK(hana::equal(
30 hana::make<hana::string_tag>(hana::char_c<'a'>, hana::char_c<'b'>, hana::char_c<'c'>, hana::char_c<'d'>),
31 hana::string_c<'a', 'b', 'c', 'd'>
32 ));
33
34 // make sure make_string == make<string_tag>
35 BOOST_HANA_CONSTANT_CHECK(hana::equal(
36 hana::make_string(hana::char_c<'a'>, hana::char_c<'b'>, hana::char_c<'c'>),
37 hana::make<hana::string_tag>(hana::char_c<'a'>, hana::char_c<'b'>, hana::char_c<'c'>)
38 ));
39}
40

source code of boost/libs/hana/test/string/make.cpp