ceph/src/boost/libs/asio/test/properties/cpp03/can_query_not_applicable_member.cpp

   1 //
   2 // cpp03/can_query_not_applicable_member.cpp
   3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2022 Christopher M. Kohlhoff (chris at kohlhoff dot com)
   6 //
   7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   9 //
  10
  11 #include <boost/asio/query.hpp>
  12 #include <cassert>
  13
  14 struct prop
  15 {
  16 };
  17
  18 struct object
  19 {
  20   int query(prop) const { return 123; }
  21 };
  22
  23 namespace boost {
  24 namespace asio {
  25 namespace traits {
  26
  27 template<>
  28 struct query_member<object, prop>
  29 {
  30   static const bool is_valid = true;
  31   static const bool is_noexcept = true;
  32   typedef int result_type;
  33 };
  34
  35 } // namespace traits
  36 } // namespace asio
  37 } // namespace boost
  38
  39 int main()
  40 {
  41   assert((!boost::asio::can_query<object, prop>::value));
  42   assert((!boost::asio::can_query<const object, prop>::value));
  43 }