/* * MessagePack for C++ version switcher * * Copyright (C) 2014 KONDO Takatoshi * * 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) #ifndef MSGPACK_VERSIONING_HPP#define MSGPACK_VERSIONING_HPP#if !defined (MSGPACK_DEFAULT_API_VERSION)#define MSGPACK_DEFAULT_API_VERSION 3#endif #define MSGPACK_DEFAULT_API_NS MSGPACK_DETAIL_PP_CAT(v, MSGPACK_DEFAULT_API_VERSION)#if MSGPACK_DEFAULT_API_VERSION == 1#define MSGPACK_DETAIL_PP_ENABLE_NS_v1 ()#elif MSGPACK_DEFAULT_API_VERSION == 2#define MSGPACK_DETAIL_PP_ENABLE_NS_v2 ()#elif MSGPACK_DEFAULT_API_VERSION == 3#define MSGPACK_DETAIL_PP_ENABLE_NS_v3 ()#else #error #endif #define MSGPACK_DETAIL_PP_CAT(a, ...) MSGPACK_DETAIL_PP_PRIMITIVE_CAT(a, __VA_ARGS__)#define MSGPACK_DETAIL_PP_PRIMITIVE_CAT(a, ...) a ## __VA_ARGS__#define MSGPACK_DETAIL_PP_IIF(c) MSGPACK_DETAIL_PP_PRIMITIVE_CAT(MSGPACK_DETAIL_PP_IIF_, c)#define MSGPACK_DETAIL_PP_IIF_0(t, ...) __VA_ARGS__#define MSGPACK_DETAIL_PP_IIF_1(t, ...) t#define MSGPACK_DETAIL_PP_PROBE(x) x, 1#if defined (_MSC_VER)#define MSGPACK_DETAIL_PP_MSVC_VA_ARGS_WORKAROUND(define, args) define args#define MSGPACK_DETAIL_PP_CHECK(...) MSGPACK_DETAIL_PP_MSVC_VA_ARGS_WORKAROUND(MSGPACK_DETAIL_PP_CHECK_N, (__VA_ARGS__, 0, 0))#define MSGPACK_DETAIL_PP_CHECK_N(x, n, ...) n#else // defined(__MSC_VER) #define MSGPACK_DETAIL_PP_CHECK(...) MSGPACK_DETAIL_PP_CHECK_N(__VA_ARGS__, 0, 0)#define MSGPACK_DETAIL_PP_CHECK_N(x, n, ...) n#endif // defined(__MSC_VER) #define MSGPACK_DETAIL_PP_NS_ENABLED_PROBE(ns) MSGPACK_DETAIL_PP_NS_ENABLED_PROBE_PROXY( MSGPACK_DETAIL_PP_ENABLE_NS_## ns )#define MSGPACK_DETAIL_PP_NS_ENABLED_PROBE_PROXY(...) MSGPACK_DETAIL_PP_NS_ENABLED_PROBE_PRIMIVIE(__VA_ARGS__)#define MSGPACK_DETAIL_PP_NS_ENABLED_PROBE_PRIMIVIE(x) MSGPACK_DETAIL_PP_NS_ENABLED_PROBE_COMBINE_ x#define MSGPACK_DETAIL_PP_NS_ENABLED_PROBE_COMBINE_(...) MSGPACK_DETAIL_PP_PROBE(~)#define MSGPACK_DETAIL_PP_IS_NS_ENABLED(ns) MSGPACK_DETAIL_PP_CHECK(MSGPACK_DETAIL_PP_NS_ENABLED_PROBE(ns))#if __cplusplus < 201103L#define MSGPACK_API_VERSION_NAMESPACE(ns) MSGPACK_DETAIL_PP_IIF(MSGPACK_DETAIL_PP_IS_NS_ENABLED(ns)) \namespace ns{}; using namespace ns; namespace ns, \namespace ns)#else // __cplusplus < 201103L #define MSGPACK_API_VERSION_NAMESPACE(ns) MSGPACK_DETAIL_PP_IIF(MSGPACK_DETAIL_PP_IS_NS_ENABLED(ns)) \inline namespace ns, namespace ns)#endif // __cplusplus < 201103L #endif // MSGPACK_VERSIONING_HPP quality 100%
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