diff options
Diffstat (limited to '3rdparty/asio/src/tests/properties/cpp03/can_query_free.cpp')
-rw-r--r-- | 3rdparty/asio/src/tests/properties/cpp03/can_query_free.cpp | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/3rdparty/asio/src/tests/properties/cpp03/can_query_free.cpp b/3rdparty/asio/src/tests/properties/cpp03/can_query_free.cpp new file mode 100644 index 00000000000..d0d42fe7bdd --- /dev/null +++ b/3rdparty/asio/src/tests/properties/cpp03/can_query_free.cpp @@ -0,0 +1,48 @@ +// +// cpp03/can_query_free.cpp +// ~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2024 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 +{ +}; + +struct object +{ + friend int query(const object&, prop) { return 123; } +}; + +namespace asio { + +template<> +struct is_applicable_property<object, prop> +{ + static const bool value = true; +}; + +namespace traits { + +template<> +struct query_free<object, prop> +{ + static const bool is_valid = true; + static const bool is_noexcept = true; + typedef int result_type; +}; + +} // namespace traits +} // namespace asio + +int main() +{ + assert((asio::can_query<object, prop>::value)); + assert((asio::can_query<const object, prop>::value)); +} |