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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/boost/libs/hana/test/tuple/move_only.cpp | |
parent | Initial commit. (diff) | |
download | ceph-upstream/16.2.11+ds.tar.xz ceph-upstream/16.2.11+ds.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/boost/libs/hana/test/tuple/move_only.cpp')
-rw-r--r-- | src/boost/libs/hana/test/tuple/move_only.cpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/tuple/move_only.cpp b/src/boost/libs/hana/test/tuple/move_only.cpp new file mode 100644 index 000000000..3f78316cc --- /dev/null +++ b/src/boost/libs/hana/test/tuple/move_only.cpp @@ -0,0 +1,55 @@ +// 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/at.hpp> +#include <boost/hana/back.hpp> +#include <boost/hana/front.hpp> +#include <boost/hana/tuple.hpp> + +#include <utility> +namespace hana = boost::hana; + + +// This test checks for move-only friendliness and reference semantics. + +struct MoveOnly { + MoveOnly() = default; + MoveOnly(MoveOnly&&) = default; + MoveOnly& operator=(MoveOnly&&) = default; + + MoveOnly(MoveOnly const&) = delete; + MoveOnly& operator=(MoveOnly const&) = delete; +}; + +int main() { + { + auto xs = hana::make_tuple(MoveOnly{}); + auto by_val = [](auto) { }; + + by_val(std::move(xs)); + by_val(hana::front(std::move(xs))); + by_val(hana::at_c<0>(std::move(xs))); + by_val(hana::back(std::move(xs))); + } + + { + auto const& xs = hana::make_tuple(MoveOnly{}); + auto by_const_ref = [](auto const&) { }; + + by_const_ref(xs); + by_const_ref(hana::front(xs)); + by_const_ref(hana::at_c<0>(xs)); + by_const_ref(hana::back(xs)); + } + + { + auto xs = hana::make_tuple(MoveOnly{}); + auto by_ref = [](auto&) { }; + + by_ref(xs); + by_ref(hana::front(xs)); + by_ref(hana::at_c<0>(xs)); + by_ref(hana::back(xs)); + } +} |