diff options
Diffstat (limited to '3rdparty/asio/src/tests/properties/cpp11/can_prefer_static.cpp')
-rw-r--r-- | 3rdparty/asio/src/tests/properties/cpp11/can_prefer_static.cpp | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/3rdparty/asio/src/tests/properties/cpp11/can_prefer_static.cpp b/3rdparty/asio/src/tests/properties/cpp11/can_prefer_static.cpp new file mode 100644 index 00000000000..c928f7ffd63 --- /dev/null +++ b/3rdparty/asio/src/tests/properties/cpp11/can_prefer_static.cpp @@ -0,0 +1,52 @@ +// +// cpp11/can_prefer_static.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/prefer.hpp" +#include <cassert> + +template <int> +struct prop +{ + static constexpr bool is_preferable = true; +}; + +template <int> +struct object +{ +}; + +namespace asio { + +template<int N, int M> +struct is_applicable_property<object<N>, prop<M> > +{ + static constexpr bool value = true; +}; + +namespace traits { + +template<int N> +struct static_require<object<N>, prop<N> > +{ + static constexpr bool is_valid = true; +}; + +} // namespace traits +} // namespace asio + +int main() +{ + static_assert(asio::can_prefer<object<1>, prop<1>>::value, ""); + static_assert(asio::can_prefer<object<1>, prop<1>, prop<1>>::value, ""); + static_assert(asio::can_prefer<object<1>, prop<1>, prop<1>, prop<1>>::value, ""); + static_assert(asio::can_prefer<const object<1>, prop<1>>::value, ""); + static_assert(asio::can_prefer<const object<1>, prop<1>, prop<1>>::value, ""); + static_assert(asio::can_prefer<const object<1>, prop<1>, prop<1>, prop<1>>::value, ""); +} |