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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/_include/support/equivalence_class.hpp | |
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/_include/support/equivalence_class.hpp')
-rw-r--r-- | src/boost/libs/hana/test/_include/support/equivalence_class.hpp | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/_include/support/equivalence_class.hpp b/src/boost/libs/hana/test/_include/support/equivalence_class.hpp new file mode 100644 index 000000000..c5e8d72e6 --- /dev/null +++ b/src/boost/libs/hana/test/_include/support/equivalence_class.hpp @@ -0,0 +1,34 @@ +// 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) + +#ifndef TEST_SUPPORT_EQUIVALENCE_CLASS_HPP +#define TEST_SUPPORT_EQUIVALENCE_CLASS_HPP + +#include <boost/hana/fwd/equal.hpp> + + +struct EquivalenceClass { }; + +template <typename Token, typename T> +struct equivalence_class_impl { + Token equivalence_class; + T unwrap; + using hana_tag = EquivalenceClass; +}; + +template <typename Token, typename X> +constexpr equivalence_class_impl<Token, X> equivalence_class(Token token, X x) { + return {token, x}; +} + +namespace boost { namespace hana { + template <> + struct equal_impl<EquivalenceClass, EquivalenceClass> { + template <typename X, typename Y> + static constexpr auto apply(X x, Y y) + { return hana::equal(x.equivalence_class, y.equivalence_class); } + }; +}} // end namespace boost::hana + +#endif // !TEST_SUPPORT_EQUIVALENCE_CLASS_HPP |