51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
// Copyright Louis Dionne 2013-2017
|
|
// Distributed under the Boost Software License, Version 1.0.
|
|
// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
|
|
|
|
#include <boost/hana/assert.hpp>
|
|
#include <boost/hana/at_key.hpp>
|
|
#include <boost/hana/equal.hpp>
|
|
#include <boost/hana/find_if.hpp>
|
|
#include <boost/hana/optional.hpp>
|
|
#include <boost/hana/set.hpp>
|
|
|
|
#include <laws/base.hpp>
|
|
namespace hana = boost::hana;
|
|
using hana::test::ct_eq;
|
|
|
|
|
|
int main() {
|
|
BOOST_HANA_CONSTANT_CHECK(hana::equal(
|
|
hana::find_if(hana::make_set(), hana::equal.to(ct_eq<1>{})),
|
|
hana::nothing
|
|
));
|
|
|
|
BOOST_HANA_CONSTANT_CHECK(hana::equal(
|
|
hana::find_if(hana::make_set(ct_eq<1>{}), hana::equal.to(ct_eq<1>{})),
|
|
hana::just(ct_eq<1>{})
|
|
));
|
|
BOOST_HANA_CONSTANT_CHECK(hana::equal(
|
|
hana::find_if(hana::make_set(ct_eq<1>{}), hana::equal.to(ct_eq<2>{})),
|
|
hana::nothing
|
|
));
|
|
|
|
BOOST_HANA_CONSTANT_CHECK(hana::equal(
|
|
hana::find_if(hana::make_set(ct_eq<1>{}, ct_eq<2>{}), hana::equal.to(ct_eq<1>{})),
|
|
hana::just(ct_eq<1>{})
|
|
));
|
|
BOOST_HANA_CONSTANT_CHECK(hana::equal(
|
|
hana::find_if(hana::make_set(ct_eq<1>{}, ct_eq<2>{}), hana::equal.to(ct_eq<2>{})),
|
|
hana::just(ct_eq<2>{})
|
|
));
|
|
BOOST_HANA_CONSTANT_CHECK(hana::equal(
|
|
hana::find_if(hana::make_set(ct_eq<1>{}, ct_eq<2>{}), hana::equal.to(ct_eq<3>{})),
|
|
hana::nothing
|
|
));
|
|
|
|
// find with operators
|
|
BOOST_HANA_CONSTANT_CHECK(hana::equal(
|
|
hana::make_set(ct_eq<1>{})[ct_eq<1>{}],
|
|
ct_eq<1>{}
|
|
));
|
|
}
|