1 // Copyright Louis Dionne 2013-2017
2 // Distributed under the Boost Software License, Version 1.0.
3 // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
5 #include <boost/hana/assert.hpp>
6 #include <boost/hana/equal.hpp>
7 #include <boost/hana/find_if.hpp>
8 #include <boost/hana/map.hpp>
9 #include <boost/hana/optional.hpp>
11 #include <laws/base.hpp>
12 #include <support/minimal_product.hpp>
13 namespace hana = boost::hana;
17 auto key() { return hana::test::ct_eq<i>{}; }
20 auto val() { return hana::test::ct_eq<-i>{}; }
22 template <int i, int j>
23 auto p() { return ::minimal_product(key<i>(), val<j>()); }
26 BOOST_HANA_CONSTANT_CHECK(hana::equal(
27 hana::find_if(hana::make_map(), hana::equal.to(key<1>())),
31 BOOST_HANA_CONSTANT_CHECK(hana::equal(
32 hana::find_if(hana::make_map(p<1, 1>()), hana::equal.to(key<1>())),
35 BOOST_HANA_CONSTANT_CHECK(hana::equal(
36 hana::find_if(hana::make_map(p<1, 1>()), hana::equal.to(key<2>())),
40 BOOST_HANA_CONSTANT_CHECK(hana::equal(
41 hana::find_if(hana::make_map(p<1, 1>(), p<2, 2>()), hana::equal.to(key<1>())),
44 BOOST_HANA_CONSTANT_CHECK(hana::equal(
45 hana::find_if(hana::make_map(p<1, 1>(), p<2, 2>()), hana::equal.to(key<2>())),
48 BOOST_HANA_CONSTANT_CHECK(hana::equal(
49 hana::find_if(hana::make_map(p<1, 1>(), p<2, 2>()), hana::equal.to(key<3>())),