37 lines
1.2 KiB
C++
37 lines
1.2 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/bool.hpp>
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#include <boost/hana/equal.hpp>
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#include <boost/hana/find_if.hpp>
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#include <boost/hana/functional/always.hpp>
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#include <boost/hana/integral_constant.hpp>
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#include <boost/hana/optional.hpp>
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#include <boost/hana/string.hpp>
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namespace hana = boost::hana;
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int main() {
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::find_if(BOOST_HANA_STRING(""), hana::always(hana::true_c)),
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hana::nothing
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::find_if(BOOST_HANA_STRING("abcd"), hana::equal.to(hana::char_c<'a'>)),
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hana::just(hana::char_c<'a'>)
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::find_if(BOOST_HANA_STRING("abcd"), hana::equal.to(hana::char_c<'c'>)),
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hana::just(hana::char_c<'c'>)
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::find_if(BOOST_HANA_STRING("abcd"), hana::equal.to(hana::char_c<'d'>)),
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hana::just(hana::char_c<'d'>)
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));
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}
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