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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/find.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/find.cpp')
-rw-r--r-- | src/boost/libs/hana/example/find.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/find.cpp b/src/boost/libs/hana/example/find.cpp new file mode 100644 index 000000000..cd75bc974 --- /dev/null +++ b/src/boost/libs/hana/example/find.cpp @@ -0,0 +1,31 @@ +// 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/find.hpp> +#include <boost/hana/integral_constant.hpp> +#include <boost/hana/map.hpp> +#include <boost/hana/optional.hpp> +#include <boost/hana/pair.hpp> +#include <boost/hana/tuple.hpp> +#include <boost/hana/type.hpp> +namespace hana = boost::hana; + + +BOOST_HANA_CONSTANT_CHECK( + hana::find(hana::make_tuple(hana::int_c<1>, hana::type_c<int>, '3'), hana::type_c<int>) == hana::just(hana::type_c<int>) +); +BOOST_HANA_CONSTANT_CHECK( + hana::find(hana::make_tuple(hana::int_c<1>, hana::type_c<int>, '3'), hana::type_c<void>) == hana::nothing +); + +constexpr auto m = hana::make_map( + hana::make_pair(hana::int_c<2>, 2), + hana::make_pair(hana::type_c<float>, 3.3), + hana::make_pair(hana::type_c<char>, hana::type_c<int>) +); +static_assert(hana::find(m, hana::type_c<float>) == hana::just(3.3), ""); + +int main() { } |