summaryrefslogtreecommitdiffstatshomepage
path: root/3rdparty/asio/src/tests/properties/cpp03/can_query_static.cpp
blob: 9a305712f1d2901b97c4126ddef7ad7e53322be7 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
//
// cpp03/can_query_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/query.hpp"
#include <cassert>

struct prop
{
};

struct object
{
};

namespace asio {

template<>
struct is_applicable_property<object, prop>
{
  static const bool value = true;
};

namespace traits {

template<>
struct static_query<object, prop>
{
  static const bool is_valid = true;
  static const bool is_noexcept = true;
  typedef int result_type;
  static int value() { return 123; }
};

} // namespace traits
} // namespace asio

int main()
{
  assert((asio::can_query<object, prop>::value));
  assert((asio::can_query<const object, prop>::value));
}