update sources to v12.2.3

[ceph.git] / ceph / src / boost / libs / hana / test / map / cnstr.default.cpp

diff --git a/ceph/src/boost/libs/hana/test/map/cnstr.default.cpp b/ceph/src/boost/libs/hana/test/map/cnstr.default.cpp
index 63a8822cda2b27b494f38b06d6f38bc776206169..cd1320c8f4d70ccc955bf2170ca86bb68ff3c377 100644 (file)
--- a/ceph/src/boost/libs/hana/test/map/cnstr.default.cpp
+++ b/ceph/src/boost/libs/hana/test/map/cnstr.default.cpp
@@ -1,4 +1,4 @@
-// Copyright Louis Dionne 2013-2016
+// 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)
 
@@ -21,6 +21,18 @@ struct NoDefault {
 auto operator==(NoDefault const&, NoDefault const&) { return hana::true_c; }
 auto operator!=(NoDefault const&, NoDefault const&) { return hana::false_c; }
 
+// Note: It is also useful to check with a non-empty class, because that
+//       triggers different instantiations due to EBO.
+struct NoDefault_nonempty {
+    NoDefault_nonempty() = delete;
+    NoDefault_nonempty(NoDefault_nonempty const&) = default;
+    constexpr explicit NoDefault_nonempty(int k) : i(k) { }
+    int i;
+};
+
+auto operator==(NoDefault_nonempty const&, NoDefault_nonempty const&) { return hana::true_c; }
+auto operator!=(NoDefault_nonempty const&, NoDefault_nonempty const&) { return hana::false_c; }
+
 struct Default {
     Default() = default;
     Default(Default const&) = default;
@@ -37,6 +49,12 @@ namespace boost { namespace hana {
         { return hana::type_c<NoDefault>; };
     };
 
+    template <>
+    struct hash_impl<NoDefault_nonempty> {
+        static constexpr auto apply(NoDefault_nonempty const&)
+        { return hana::type_c<NoDefault_nonempty>; };
+    };
+
     template <>
     struct hash_impl<Default> {
         static constexpr auto apply(Default const&)
@@ -50,4 +68,7 @@ int main() {
 
     auto map2 = hana::make_map(hana::make_pair(NoDefault(1), NoDefault(1)));
     static_assert(!std::is_default_constructible<decltype(map2)>::value, "");
+
+    auto map3 = hana::make_map(hana::make_pair(NoDefault_nonempty(1), NoDefault_nonempty(1)));
+    static_assert(!std::is_default_constructible<decltype(map3)>::value, "");
 }