partition.cpp
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// Copyright Louis Dionne 2013-2022
// 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/equal.hpp>
#include <boost/hana/ext/std/integral_constant.hpp>
#include <boost/hana/integral_constant.hpp>
#include <boost/hana/mod.hpp>
#include <boost/hana/not_equal.hpp>
#include <boost/hana/pair.hpp>
#include <boost/hana/partition.hpp>
#include <boost/hana/tuple.hpp>
#include <boost/hana/type.hpp>
#include <type_traits>
namespace hana = boost::hana;
BOOST_HANA_CONSTANT_CHECK(
hana::partition(hana::tuple_c<int, 1, 2, 3, 4, 5, 6, 7>, [](auto x) {
return x % hana::int_c<2> != hana::int_c<0>;
})
==
hana::make_pair(
hana::tuple_c<int, 1, 3, 5, 7>,
hana::tuple_c<int, 2, 4, 6>
)
);
BOOST_HANA_CONSTANT_CHECK(
hana::partition(hana::tuple_t<void, int, float, char, double>, hana::trait<std::is_floating_point>)
==
hana::make_pair(
hana::tuple_t<float, double>,
hana::tuple_t<void, int, char>
)
);
// partition.by is syntactic sugar
BOOST_HANA_CONSTANT_CHECK(
hana::partition.by(hana::trait<std::is_floating_point>,
hana::tuple_t<void, int, float, char, double>)
==
hana::make_pair(
hana::tuple_t<float, double>,
hana::tuple_t<void, int, char>
)
);
int main() { }