hana/test/_include/auto/take_while.hpp
2017-01-07 14:14:18 -08:00

69 lines
2.2 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)
#ifndef BOOST_HANA_TEST_AUTO_TAKE_WHILE_HPP
#define BOOST_HANA_TEST_AUTO_TAKE_WHILE_HPP
#include <boost/hana/assert.hpp>
#include <boost/hana/equal.hpp>
#include <boost/hana/not_equal.hpp>
#include <boost/hana/take_while.hpp>
#include "test_case.hpp"
#include <laws/base.hpp>
TestCase test_take_while{[]{
namespace hana = boost::hana;
using hana::test::ct_eq;
auto z = ct_eq<999>{};
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::take_while(MAKE_TUPLE(), hana::not_equal.to(z)),
MAKE_TUPLE()
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::take_while(MAKE_TUPLE(ct_eq<1>{}), hana::not_equal.to(z)),
MAKE_TUPLE(ct_eq<1>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::take_while(MAKE_TUPLE(z), hana::not_equal.to(z)),
MAKE_TUPLE()
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::take_while(MAKE_TUPLE(ct_eq<1>{}, ct_eq<2>{}), hana::not_equal.to(z)),
MAKE_TUPLE(ct_eq<1>{}, ct_eq<2>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::take_while(MAKE_TUPLE(ct_eq<1>{}, z), hana::not_equal.to(z)),
MAKE_TUPLE(ct_eq<1>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::take_while(MAKE_TUPLE(z, ct_eq<2>{}), hana::not_equal.to(z)),
MAKE_TUPLE()
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::take_while(MAKE_TUPLE(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}), hana::not_equal.to(z)),
MAKE_TUPLE(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::take_while(MAKE_TUPLE(ct_eq<1>{}, ct_eq<2>{}, z), hana::not_equal.to(z)),
MAKE_TUPLE(ct_eq<1>{}, ct_eq<2>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::take_while(MAKE_TUPLE(ct_eq<1>{}, z, ct_eq<3>{}), hana::not_equal.to(z)),
MAKE_TUPLE(ct_eq<1>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::take_while(MAKE_TUPLE(z, ct_eq<2>{}, ct_eq<3>{}), hana::not_equal.to(z)),
MAKE_TUPLE()
));
}};
#endif // !BOOST_HANA_TEST_AUTO_TAKE_WHILE_HPP