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Diffstat (limited to '')
-rw-r--r-- | src/boost/libs/hana/test/experimental/types/transform.cpp | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/experimental/types/transform.cpp b/src/boost/libs/hana/test/experimental/types/transform.cpp new file mode 100644 index 000000000..0ed1b07c7 --- /dev/null +++ b/src/boost/libs/hana/test/experimental/types/transform.cpp @@ -0,0 +1,74 @@ +// 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/experimental/types.hpp> +#include <boost/hana/transform.hpp> +#include <boost/hana/type.hpp> +namespace hana = boost::hana; + + +template <typename ...> +struct mf { struct type; }; + +template <int> struct x; +struct undefined { }; + +int main() { + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::transform(hana::experimental::types<>{}, undefined{}), + hana::experimental::types<>{} + )); + + // with a Metafunction + { + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::transform(hana::experimental::types<x<0>>{}, hana::metafunction<mf>), + hana::experimental::types<mf<x<0>>::type>{} + )); + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::transform(hana::experimental::types<x<0>, x<1>>{}, hana::metafunction<mf>), + hana::experimental::types<mf<x<0>>::type, mf<x<1>>::type>{} + )); + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::transform(hana::experimental::types<x<0>, x<1>, x<2>>{}, hana::metafunction<mf>), + hana::experimental::types<mf<x<0>>::type, mf<x<1>>::type, mf<x<2>>::type>{} + )); + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::transform(hana::experimental::types<x<0>, x<1>, x<2>, x<3>>{}, hana::metafunction<mf>), + hana::experimental::types<mf<x<0>>::type, mf<x<1>>::type, mf<x<2>>::type, mf<x<3>>::type>{} + )); + } + + // with a non-Metafunction + { + auto f = [](auto t) { + return hana::metafunction<mf>(t); + }; + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::transform(hana::experimental::types<x<0>>{}, f), + hana::experimental::types<mf<x<0>>::type>{} + )); + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::transform(hana::experimental::types<x<0>, x<1>>{}, f), + hana::experimental::types<mf<x<0>>::type, mf<x<1>>::type>{} + )); + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::transform(hana::experimental::types<x<0>, x<1>, x<2>>{}, f), + hana::experimental::types<mf<x<0>>::type, mf<x<1>>::type, mf<x<2>>::type>{} + )); + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::transform(hana::experimental::types<x<0>, x<1>, x<2>, x<3>>{}, f), + hana::experimental::types<mf<x<0>>::type, mf<x<1>>::type, mf<x<2>>::type, mf<x<3>>::type>{} + )); + } +} |