29 lines
710 B
C++
29 lines
710 B
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/fold_right.hpp>
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#include <boost/hana/optional.hpp>
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#include <laws/base.hpp>
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namespace hana = boost::hana;
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int main() {
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hana::test::ct_eq<2> x{};
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hana::test::ct_eq<3> s{};
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hana::test::_injection<0> f{};
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::fold_right(hana::just(x), s, f),
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f(x, s)
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::fold_right(hana::nothing, s, f),
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s
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));
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}
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