| 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/length.hpp> |
| 8 | #include <boost/hana/minimum.hpp> |
| 9 | #include <boost/hana/ordering.hpp> |
| 10 | #include <boost/hana/tuple.hpp> |
| 11 | namespace hana = boost::hana; |
| 12 | |
| 13 | |
| 14 | int main() { |
| 15 | BOOST_HANA_CONSTANT_CHECK( |
| 16 | hana::minimum.by(hana::ordering(hana::length), hana::make_tuple( |
| 17 | hana::make_tuple(), |
| 18 | hana::make_tuple(1, '2'), |
| 19 | hana::make_tuple(3.3, nullptr, 4) |
| 20 | )) |
| 21 | == hana::make_tuple() |
| 22 | ); |
| 23 | } |
| 24 |