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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/example/comparing.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/example/comparing.cpp')
-rw-r--r-- | src/boost/libs/hana/example/comparing.cpp | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/comparing.cpp b/src/boost/libs/hana/example/comparing.cpp new file mode 100644 index 000000000..8c6538816 --- /dev/null +++ b/src/boost/libs/hana/example/comparing.cpp @@ -0,0 +1,40 @@ +// 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/comparing.hpp> +#include <boost/hana/equal.hpp> +#include <boost/hana/group.hpp> +#include <boost/hana/length.hpp> +#include <boost/hana/range.hpp> +#include <boost/hana/tuple.hpp> +namespace hana = boost::hana; + + +int main() { + constexpr auto sequences = hana::make_tuple( + hana::make_tuple(1, 2, 3), + hana::make_tuple('x', 'y', 'z'), + hana::range_c<long, 0, 1>, + hana::tuple_t<char, int>, + hana::range_c<int, 0, 2>, + hana::make_tuple(123.4, nullptr) + ); + + constexpr auto grouped = hana::group.by(hana::comparing(hana::length), sequences); + + static_assert(grouped == hana::make_tuple( + hana::make_tuple( + hana::make_tuple(1, 2, 3), + hana::make_tuple('x', 'y', 'z') + ), + hana::make_tuple( + hana::range_c<long, 0, 1> + ), + hana::make_tuple( + hana::tuple_t<char, int>, + hana::range_c<int, 0, 2>, + hana::make_tuple(123.4, nullptr) + ) + ), ""); +} |