1#ifndef BOOST_DESCRIBE_DETAIL_CONFIG_HPP_INCLUDED
2#define BOOST_DESCRIBE_DETAIL_CONFIG_HPP_INCLUDED
3
4// Copyright 2021 Peter Dimov
5// Distributed under the Boost Software License, Version 1.0.
6// https://www.boost.org/LICENSE_1_0.txt
7
8#if __cplusplus >= 201402L
9
10# define BOOST_DESCRIBE_CXX14
11# define BOOST_DESCRIBE_CXX11
12
13#elif defined(_MSC_VER) && _MSC_VER >= 1900
14
15# define BOOST_DESCRIBE_CXX14
16# define BOOST_DESCRIBE_CXX11
17
18#elif __cplusplus >= 201103L
19
20# define BOOST_DESCRIBE_CXX11
21
22# if defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ == 7
23# undef BOOST_DESCRIBE_CXX11
24# endif
25
26#endif
27
28#if defined(BOOST_DESCRIBE_CXX11)
29# define BOOST_DESCRIBE_CONSTEXPR_OR_CONST constexpr
30#else
31# define BOOST_DESCRIBE_CONSTEXPR_OR_CONST const
32#endif
33
34#if defined(__clang__)
35# define BOOST_DESCRIBE_MAYBE_UNUSED __attribute__((unused))
36#else
37# define BOOST_DESCRIBE_MAYBE_UNUSED
38#endif
39
40#endif // #ifndef BOOST_DESCRIBE_DETAIL_CONFIG_HPP_INCLUDED
41