53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
// Copyright Louis Dionne 2013-2017
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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/transform.hpp>
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#include <boost/hana/tuple.hpp>
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#include <boost/hana/type.hpp>
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namespace hana = boost::hana;
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template <typename ...>
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struct F { struct type; };
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struct x1;
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struct x2;
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struct x3;
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struct x4;
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int main() {
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// transform with tuple_t and a metafunction
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::transform(hana::tuple_t<>, hana::metafunction<F>),
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hana::tuple_t<>
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::transform(hana::tuple_t<x1>, hana::metafunction<F>),
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hana::tuple_t<F<x1>::type>
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::transform(hana::tuple_t<x1, x2>, hana::metafunction<F>),
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hana::tuple_t<F<x1>::type, F<x2>::type>
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::transform(hana::tuple_t<x1, x2, x3>, hana::metafunction<F>),
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hana::tuple_t<F<x1>::type, F<x2>::type, F<x3>::type>
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::transform(hana::tuple_t<x1, x2, x3, x4>, hana::metafunction<F>),
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hana::tuple_t<F<x1>::type, F<x2>::type, F<x3>::type, F<x4>::type>
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::transform(hana::tuple_t<x1, x2, x3, x4>, hana::template_<F>),
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hana::tuple_t<F<x1>, F<x2>, F<x3>, F<x4>>
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));
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}
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