summaryrefslogtreecommitdiffstatshomepage
path: root/3rdparty/asio/src/tests/properties/cpp03/can_prefer_not_applicable_unsupported.cpp
diff options
context:
space:
mode:
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.cpp33
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));
+}