| 13 | struct undefined { }; |
| 14 | |
| 15 | int main() { |
| 16 | hana::test::_injection<0> f{}; |
| 17 | hana::test::ct_eq<2> x{}; |
| 18 | |
| 19 | BOOST_HANA_CONSTANT_CHECK(hana::equal( |
| 20 | hana::maybe(x, undefined{}, hana::nothing), |
| 21 | x |
| 22 | )); |
| 23 | |
| 24 | BOOST_HANA_CONSTANT_CHECK(hana::equal( |
| 25 | hana::maybe(undefined{}, f, hana::just(x)), |
| 26 | f(x) |
| 27 | )); |
| 28 | } |