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Diffstat (limited to 'src/boost/libs/hana/test/map/keys.cpp')
-rw-r--r-- | src/boost/libs/hana/test/map/keys.cpp | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/map/keys.cpp b/src/boost/libs/hana/test/map/keys.cpp new file mode 100644 index 000000000..8c54cb9a1 --- /dev/null +++ b/src/boost/libs/hana/test/map/keys.cpp @@ -0,0 +1,49 @@ +// 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/assert.hpp> +#include <boost/hana/contains.hpp> +#include <boost/hana/equal.hpp> +#include <boost/hana/keys.hpp> +#include <boost/hana/map.hpp> +#include <boost/hana/permutations.hpp> + +#include <laws/base.hpp> +#include <support/seq.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() { + constexpr auto list = ::seq; + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::keys(hana::make_map()), + list() + )); + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::keys(hana::make_map(p<1, 1>())), + list(key<1>()) + )); + + BOOST_HANA_CONSTANT_CHECK(hana::contains( + hana::permutations(list(key<1>(), key<2>())), + hana::keys(hana::make_map(p<1, 1>(), p<2, 2>())) + )); + + BOOST_HANA_CONSTANT_CHECK(hana::contains( + hana::permutations(list(key<1>(), key<2>(), key<3>())), + hana::keys(hana::make_map(p<1, 1>(), p<2, 2>(), p<3, 3>())) + )); +} |