hana/test/map/any_of.cpp
2017-01-07 14:14:18 -08:00

53 lines
1.4 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/any_of.hpp>
#include <boost/hana/assert.hpp>
#include <boost/hana/equal.hpp>
#include <boost/hana/map.hpp>
#include <boost/hana/not.hpp>
#include <laws/base.hpp>
#include <support/minimal_product.hpp>
namespace hana = boost::hana;
template <int i>
auto key() { return hana::test::ct_eq<i>{}; }
template <int i>
auto val() { return hana::test::ct_eq<-i>{}; }
template <int i, int j>
auto p() { return ::minimal_product(key<i>(), val<j>()); }
int main() {
BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::any_of(
hana::make_map(),
hana::equal.to(key<1>()
))));
BOOST_HANA_CONSTANT_CHECK(hana::any_of(
hana::make_map(p<1, 1>()),
hana::equal.to(key<1>())
));
BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::any_of(
hana::make_map(p<1, 1>()),
hana::equal.to(key<2>())
)));
BOOST_HANA_CONSTANT_CHECK(hana::any_of(
hana::make_map(p<1, 1>(), p<2, 2>()),
hana::equal.to(key<1>())
));
BOOST_HANA_CONSTANT_CHECK(hana::any_of(
hana::make_map(p<1, 1>(), p<2, 2>()),
hana::equal.to(key<2>())
));
BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::any_of(
hana::make_map(p<1, 1>(), p<2, 2>()),
hana::equal.to(key<3>())
)));
}