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Diffstat (limited to '3rdparty/asio/src/tests/properties/cpp14/can_query_free.cpp')
-rw-r--r--3rdparty/asio/src/tests/properties/cpp14/can_query_free.cpp28
1 files changed, 28 insertions, 0 deletions
diff --git a/3rdparty/asio/src/tests/properties/cpp14/can_query_free.cpp b/3rdparty/asio/src/tests/properties/cpp14/can_query_free.cpp
new file mode 100644
index 00000000000..1a6c19e9766
--- /dev/null
+++ b/3rdparty/asio/src/tests/properties/cpp14/can_query_free.cpp
@@ -0,0 +1,28 @@
+//
+// cpp14/can_query_free.cpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#include "asio/query.hpp"
+#include <cassert>
+
+struct prop
+{
+ template <typename> static constexpr bool is_applicable_property_v = true;
+};
+
+struct object
+{
+ friend constexpr int query(const object&, prop) { return 123; }
+};
+
+int main()
+{
+ static_assert(asio::can_query_v<object, prop>, "");
+ static_assert(asio::can_query_v<const object, prop>, "");
+}