diff options
Diffstat (limited to 'src/boost/libs/hana/test/detail/variadic/at.cpp')
-rw-r--r-- | src/boost/libs/hana/test/detail/variadic/at.cpp | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/detail/variadic/at.cpp b/src/boost/libs/hana/test/detail/variadic/at.cpp new file mode 100644 index 000000000..ddb4bddc4 --- /dev/null +++ b/src/boost/libs/hana/test/detail/variadic/at.cpp @@ -0,0 +1,93 @@ +// 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/detail/variadic/at.hpp> + +#include <boost/hana/assert.hpp> +#include <boost/hana/equal.hpp> + +#include <laws/base.hpp> +namespace hana = boost::hana; +namespace vd = hana::detail::variadic; +using hana::test::ct_eq; + + +struct non_pod { virtual ~non_pod() { } }; + +template <int i> struct y { }; + +int main() { + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<0>(ct_eq<0>{}), + ct_eq<0>{} + )); + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<0>(ct_eq<0>{}, ct_eq<1>{}), + ct_eq<0>{} + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<1>(y<0>{}, ct_eq<1>{}), + ct_eq<1>{} + )); + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<0>(ct_eq<0>{}, y<1>{}, y<2>{}), + ct_eq<0>{} + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<1>(y<0>{}, ct_eq<1>{}, y<2>{}), + ct_eq<1>{} + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<2>(y<0>{}, y<1>{}, ct_eq<2>{}), + ct_eq<2>{} + )); + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<0>(ct_eq<0>{}, y<1>{}, y<2>{}, y<3>{}), + ct_eq<0>{} + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<1>(y<0>{}, ct_eq<1>{}, y<2>{}, y<3>{}), + ct_eq<1>{} + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<2>(y<0>{}, y<1>{}, ct_eq<2>{}, y<3>{}), + ct_eq<2>{} + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<3>(y<0>{}, y<1>{}, y<2>{}, ct_eq<3>{}), + ct_eq<3>{} + )); + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<0>(ct_eq<0>{}, y<1>{}, y<2>{}, y<3>{}, y<4>{}), + ct_eq<0>{} + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<1>(y<0>{}, ct_eq<1>{}, y<2>{}, y<3>{}, y<4>{}), + ct_eq<1>{} + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<2>(y<0>{}, y<1>{}, ct_eq<2>{}, y<3>{}, y<4>{}), + ct_eq<2>{} + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<3>(y<0>{}, y<1>{}, y<2>{}, ct_eq<3>{}, y<4>{}), + ct_eq<3>{} + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + vd::at<4>(y<0>{}, y<1>{}, y<2>{}, y<3>{}, ct_eq<4>{}), + ct_eq<4>{} + )); + + // make sure we can use non-pods on both side of the fetched object + vd::at<0>(ct_eq<0>{}, non_pod{}); + vd::at<1>(non_pod{}, ct_eq<1>{}); + + // make sure it works with const objects + int const i = 1; + vd::at<0>(i); +} |