| 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/type.hpp> |
| 9 | namespace hana = boost::hana; |
| 10 | |
| 11 | |
| 12 | struct T { }; |
| 13 | |
| 14 | int main() { |
| 15 | BOOST_HANA_CONSTANT_CHECK(hana::equal( |
| 16 | hana::sizeof_(T{}), |
| 17 | hana::size_c<sizeof(T)> |
| 18 | )); |
| 19 | |
| 20 | BOOST_HANA_CONSTANT_CHECK(hana::equal( |
| 21 | hana::sizeof_(hana::type_c<T>), |
| 22 | hana::size_c<sizeof(T)> |
| 23 | )); |
| 24 | |
| 25 | // make sure we don't read from non-constexpr variables |
| 26 | { |
| 27 | auto t = hana::type_c<T>; |
| 28 | auto x = 1; |
| 29 | constexpr auto r1 = hana::sizeof_(t); (void)r1; |
| 30 | constexpr auto r2 = hana::sizeof_(x); (void)r2; |
| 31 | } |
| 32 | } |
| 33 |