diff options
Diffstat (limited to 'src/boost/libs/hana/test/tuple/unpack.cpp')
-rw-r--r-- | src/boost/libs/hana/test/tuple/unpack.cpp | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/tuple/unpack.cpp b/src/boost/libs/hana/test/tuple/unpack.cpp new file mode 100644 index 00000000..3838ea29 --- /dev/null +++ b/src/boost/libs/hana/test/tuple/unpack.cpp @@ -0,0 +1,89 @@ +// 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/equal.hpp> +#include <boost/hana/tuple.hpp> +#include <boost/hana/type.hpp> +#include <boost/hana/unpack.hpp> + +#include <laws/base.hpp> +namespace hana = boost::hana; +using hana::test::ct_eq; + + +template <typename ...> +struct F { struct type; }; + +struct x0; +struct x1; +struct x2; +struct x3; + +int main() { + hana::test::_injection<0> f{}; + + // tuple + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::unpack(hana::make_tuple(), f), + f() + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::unpack(hana::make_tuple(ct_eq<0>{}), f), + f(ct_eq<0>{}) + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::unpack(hana::make_tuple(ct_eq<0>{}, ct_eq<1>{}), f), + f(ct_eq<0>{}, ct_eq<1>{}) + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::unpack(hana::make_tuple(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), f), + f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}) + )); + + // tuple_t + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::unpack(hana::tuple_t<>, f), + f() + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::unpack(hana::tuple_t<x0>, f), + f(hana::type_c<x0>) + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::unpack(hana::tuple_t<x0, x1>, f), + f(hana::type_c<x0>, hana::type_c<x1>) + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::unpack(hana::tuple_t<x0, x1, x2>, f), + f(hana::type_c<x0>, hana::type_c<x1>, hana::type_c<x2>) + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::unpack(hana::tuple_t<x0, x1, x2, x3>, f), + f(hana::type_c<x0>, hana::type_c<x1>, hana::type_c<x2>, hana::type_c<x3>) + )); + + // tuple_t with metafunction + auto g = hana::metafunction<F>; + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::unpack(hana::tuple_t<>, g), + g() + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::unpack(hana::tuple_t<x0>, g), + g(hana::type_c<x0>) + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::unpack(hana::tuple_t<x0, x1>, g), + g(hana::type_c<x0>, hana::type_c<x1>) + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::unpack(hana::tuple_t<x0, x1, x2>, g), + g(hana::type_c<x0>, hana::type_c<x1>, hana::type_c<x2>) + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::unpack(hana::tuple_t<x0, x1, x2, x3>, g), + g(hana::type_c<x0>, hana::type_c<x1>, hana::type_c<x2>, hana::type_c<x3>) + )); +} |