diff options
Diffstat (limited to '3rdparty/asio/src/tests/properties/cpp03/can_prefer_not_applicable_unsupported.cpp')
-rw-r--r-- | 3rdparty/asio/src/tests/properties/cpp03/can_prefer_not_applicable_unsupported.cpp | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/3rdparty/asio/src/tests/properties/cpp03/can_prefer_not_applicable_unsupported.cpp b/3rdparty/asio/src/tests/properties/cpp03/can_prefer_not_applicable_unsupported.cpp new file mode 100644 index 00000000000..4699ef77b51 --- /dev/null +++ b/3rdparty/asio/src/tests/properties/cpp03/can_prefer_not_applicable_unsupported.cpp @@ -0,0 +1,33 @@ +// +// cpp03/can_prefer_not_applicable_unsupported.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/prefer.hpp" +#include <cassert> + +template <int> +struct prop +{ + static const bool is_preferable = true; +}; + +template <int> +struct object +{ +}; + +int main() +{ + assert((!asio::can_prefer<object<1>, prop<2> >::value)); + assert((!asio::can_prefer<object<1>, prop<2>, prop<3> >::value)); + assert((!asio::can_prefer<object<1>, prop<2>, prop<3>, prop<4> >::value)); + assert((!asio::can_prefer<const object<1>, prop<2> >::value)); + assert((!asio::can_prefer<const object<1>, prop<2>, prop<3> >::value)); + assert((!asio::can_prefer<const object<1>, prop<2>, prop<3>, prop<4> >::value)); +} |