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1 | // Copyright Louis Dionne 2013-2016 |
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/optional.hpp> | |
6 | ||
7 | #include <laws/base.hpp> | |
8 | namespace hana = boost::hana; | |
9 | ||
10 | ||
11 | // This test makes sure that we do not instantiate rogue contructors when | |
12 | // trying to copy a hana::just. | |
13 | ||
14 | int main() { | |
15 | auto just = hana::just(hana::test::trap_construct{}); | |
16 | auto implicit_copy = just; | |
17 | decltype(just) explicit_copy(just); | |
18 | ||
19 | (void)implicit_copy; | |
20 | (void)explicit_copy; | |
21 | } |