| 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/assert.hpp> |
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| 6 | #include <boost/hana/equal.hpp> |
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| 7 | #include <boost/hana/optional.hpp> |
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| 8 | #include <boost/hana/transform.hpp> |
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| 9 | #include <boost/hana/tuple.hpp> |
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| 10 | #include <boost/hana/type.hpp> |
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| 11 | |
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| 12 | #include <sstream> |
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| 13 | #include <string> |
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| 14 | #include <type_traits> |
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| 15 | namespace hana = boost::hana; |
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| 16 | using namespace std::literals; |
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| 17 | |
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| 18 | |
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| 19 | auto to_string = [](auto x) { |
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| 20 | std::ostringstream ss; |
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| 21 | ss << x; |
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| 22 | return ss.str(); |
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| 23 | }; |
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| 24 | |
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| 25 | int main() { |
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| 26 | BOOST_HANA_RUNTIME_CHECK( |
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| 27 | hana::transform(hana::make_tuple(1, '2', "345" , std::string{"67" }), to_string) |
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| 28 | == |
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| 29 | hana::make_tuple("1" , "2" , "345" , "67" ) |
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| 30 | ); |
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| 31 | |
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| 32 | BOOST_HANA_CONSTANT_CHECK(hana::transform(hana::nothing, to_string) == hana::nothing); |
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| 33 | BOOST_HANA_RUNTIME_CHECK(hana::transform(hana::just(123), to_string) == hana::just("123"s )); |
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| 34 | |
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| 35 | BOOST_HANA_CONSTANT_CHECK( |
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| 36 | hana::transform(hana::tuple_t<void, int(), char[10]>, hana::metafunction<std::add_pointer>) |
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| 37 | == |
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| 38 | hana::tuple_t<void*, int(*)(), char(*)[10]> |
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| 39 | ); |
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| 40 | } |
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| 41 | |
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