| 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/cartesian_product.hpp> |
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| 6 | #include <boost/hana/equal.hpp> |
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| 7 | #include <boost/hana/tuple.hpp> |
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| 8 | #include <boost/hana/type.hpp> |
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| 9 | namespace hana = boost::hana; |
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| 10 | |
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| 11 | |
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| 12 | constexpr auto tuples = hana::make_tuple( |
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| 13 | hana::make_tuple(1, 2, 3), |
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| 14 | hana::make_tuple('a', 'b'), |
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| 15 | hana::make_tuple(hana::type_c<int>, hana::type_c<char>) |
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| 16 | ); |
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| 17 | |
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| 18 | constexpr auto prod = hana::make_tuple( |
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| 19 | hana::make_tuple(1, 'a', hana::type_c<int>), |
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| 20 | hana::make_tuple(1, 'a', hana::type_c<char>), |
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| 21 | hana::make_tuple(1, 'b', hana::type_c<int>), |
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| 22 | hana::make_tuple(1, 'b', hana::type_c<char>), |
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| 23 | |
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| 24 | hana::make_tuple(2, 'a', hana::type_c<int>), |
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| 25 | hana::make_tuple(2, 'a', hana::type_c<char>), |
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| 26 | hana::make_tuple(2, 'b', hana::type_c<int>), |
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| 27 | hana::make_tuple(2, 'b', hana::type_c<char>), |
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| 28 | |
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| 29 | hana::make_tuple(3, 'a', hana::type_c<int>), |
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| 30 | hana::make_tuple(3, 'a', hana::type_c<char>), |
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| 31 | hana::make_tuple(3, 'b', hana::type_c<int>), |
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| 32 | hana::make_tuple(3, 'b', hana::type_c<char>) |
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| 33 | ); |
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| 34 | |
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| 35 | static_assert(hana::cartesian_product(tuples) == prod, "" ); |
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| 36 | |
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| 37 | int main() { } |
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| 38 | |
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