| 1 | // Copyright Louis Dionne 2013-2022 |
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| 2 | // Distributed under the Boost Software License, Version 1.0. |
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| 3 | // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) |
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| 4 | |
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| 5 | #include <boost/hana/core/tag_of.hpp> |
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| 6 | #include <boost/hana/ext/std/integral_constant.hpp> |
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| 7 | #include <boost/hana/integral_constant.hpp> |
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| 8 | #include <boost/hana/pair.hpp> |
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| 9 | |
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| 10 | #include <type_traits> |
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| 11 | namespace hana = boost::hana; |
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| 12 | |
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| 13 | |
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| 14 | int main() { |
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| 15 | { |
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| 16 | struct T { }; struct U { }; |
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| 17 | static_assert(std::is_same< |
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| 18 | hana::tag_of<hana::pair<T, U>>::type, |
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| 19 | hana::pair_tag |
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| 20 | >{}, "" ); |
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| 21 | } |
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| 22 | |
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| 23 | // Bug #1 |
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| 24 | { |
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| 25 | using Pair = hana::pair<hana::integral_constant<int, 3>, int>; |
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| 26 | using PairTag = hana::tag_of<Pair>::type; |
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| 27 | using Tag = hana::tag_of<std::integral_constant<unsigned long, 0>>::type; |
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| 28 | } |
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| 29 | |
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| 30 | // Bug #2 |
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| 31 | { |
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| 32 | using Pair = hana::pair<std::integral_constant<int, 3>, int>; |
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| 33 | using PairTag = hana::tag_of<Pair>::type; |
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| 34 | using Tag = hana::tag_of<std::integral_constant<unsigned long, 0>>::type; |
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| 35 | } |
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| 36 | } |
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| 37 | |
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