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Diffstat (limited to 'src/boost/libs/hana/example/take_front.cpp')
| -rw-r--r-- | src/boost/libs/hana/example/take_front.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/take_front.cpp b/src/boost/libs/hana/example/take_front.cpp new file mode 100644 index 00000000..347619a7 --- /dev/null +++ b/src/boost/libs/hana/example/take_front.cpp @@ -0,0 +1,19 @@ +// 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/integral_constant.hpp> +#include <boost/hana/take_front.hpp> +#include <boost/hana/tuple.hpp> +namespace hana = boost::hana; + + +BOOST_HANA_CONSTANT_CHECK(hana::take_front(hana::make_tuple(1, '2', 3.3), hana::size_c<0>) == hana::make_tuple()); +static_assert(hana::take_front(hana::make_tuple(1, '2', 3.3), hana::size_c<1>) == hana::make_tuple(1), ""); +static_assert(hana::take_front(hana::make_tuple(1, '2', 3.3), hana::size_c<2>) == hana::make_tuple(1, '2'), ""); +static_assert(hana::take_front(hana::make_tuple(1, '2', 3.3), hana::size_c<3>) == hana::make_tuple(1, '2', 3.3), ""); +static_assert(hana::take_front(hana::make_tuple(1, '2', 3.3), hana::size_c<4>) == hana::make_tuple(1, '2', 3.3), ""); + +int main() { } |