mirror of https://gitee.com/bigwinds/arangodb
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
// Copyright Louis Dionne 2013-2016
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
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#include <boost/hana/assert.hpp>
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#include <boost/hana/equal.hpp>
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#include <boost/hana/optional.hpp>
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#include <boost/hana/transform.hpp>
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#include <boost/hana/tuple.hpp>
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#include <boost/hana/type.hpp>
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#include <sstream>
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#include <string>
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#include <type_traits>
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namespace hana = boost::hana;
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using namespace std::literals;
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auto to_string = [](auto x) {
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std::ostringstream ss;
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ss << x;
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return ss.str();
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};
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int main() {
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BOOST_HANA_RUNTIME_CHECK(
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hana::transform(hana::make_tuple(1, '2', "345", std::string{"67"}), to_string)
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==
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hana::make_tuple("1", "2", "345", "67")
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);
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BOOST_HANA_CONSTANT_CHECK(hana::transform(hana::nothing, to_string) == hana::nothing);
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BOOST_HANA_RUNTIME_CHECK(hana::transform(hana::just(123), to_string) == hana::just("123"s));
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BOOST_HANA_CONSTANT_CHECK(
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hana::transform(hana::tuple_t<void, int(), char[10]>, hana::template_<std::add_pointer_t>)
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==
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hana::tuple_t<void*, int(*)(), char(*)[10]>
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);
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}
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