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

73 lines
2.5 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_DROP_WHILE_HPP
#define BOOST_HANA_TEST_AUTO_DROP_WHILE_HPP
#include <boost/hana/assert.hpp>
#include <boost/hana/bool.hpp>
#include <boost/hana/drop_while.hpp>
#include <boost/hana/equal.hpp>
#include <boost/hana/functional/id.hpp>
#include <boost/hana/not_equal.hpp>
#include <laws/base.hpp>
#include "test_case.hpp"
TestCase test_drop_while{[]{
namespace hana = boost::hana;
using hana::test::ct_eq;
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::drop_while(MAKE_TUPLE(), hana::id),
MAKE_TUPLE()
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::drop_while(MAKE_TUPLE(hana::true_c), hana::id),
MAKE_TUPLE()
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::drop_while(MAKE_TUPLE(hana::false_c), hana::id),
MAKE_TUPLE(hana::false_c)
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::drop_while(MAKE_TUPLE(hana::true_c, hana::true_c), hana::id),
MAKE_TUPLE()
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::drop_while(MAKE_TUPLE(hana::true_c, hana::false_c), hana::id),
MAKE_TUPLE(hana::false_c)
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::drop_while(MAKE_TUPLE(hana::false_c, hana::true_c), hana::id),
MAKE_TUPLE(hana::false_c, hana::true_c)
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::drop_while(MAKE_TUPLE(hana::false_c, hana::false_c), hana::id),
MAKE_TUPLE(hana::false_c, hana::false_c)
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::drop_while(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}), hana::not_equal.to(ct_eq<99>{})),
MAKE_TUPLE()
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::drop_while(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), hana::not_equal.to(ct_eq<1>{})),
MAKE_TUPLE(ct_eq<1>{}, ct_eq<2>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::drop_while(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}), hana::not_equal.to(ct_eq<3>{})),
MAKE_TUPLE(ct_eq<3>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::drop_while(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}), hana::not_equal.to(ct_eq<0>{})),
MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
));
}};
#endif // !BOOST_HANA_TEST_AUTO_DROP_WHILE_HPP