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Diffstat (limited to '')
-rw-r--r-- | src/boost/libs/hana/test/set/unpack.cpp | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/set/unpack.cpp b/src/boost/libs/hana/test/set/unpack.cpp new file mode 100644 index 000000000..4412dd96b --- /dev/null +++ b/src/boost/libs/hana/test/set/unpack.cpp @@ -0,0 +1,38 @@ +// 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/permutations.hpp> +#include <boost/hana/set.hpp> +#include <boost/hana/transform.hpp> +#include <boost/hana/tuple.hpp> +#include <boost/hana/unpack.hpp> + +#include <laws/base.hpp> +namespace hana = boost::hana; +using hana::test::ct_eq; + + +int main() { + hana::test::_injection<0> f{}; + + auto check = [=](auto ...xs) { + auto arg_perms = hana::permutations(hana::make_tuple(xs...)); + auto possible_results = hana::transform(arg_perms, [=](auto args) { + return hana::unpack(args, f); + }); + + BOOST_HANA_CONSTANT_CHECK(hana::contains( + possible_results, + hana::unpack(hana::make_set(xs...), f) + )); + }; + + check(); + check(ct_eq<1>{}); + check(ct_eq<1>{}, ct_eq<2>{}); + check(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}); + check(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}); +} |