mirror of
https://github.com/msgpack/msgpack-c
synced 2026-06-08 16:11:40 +00:00
Takatoshi Kondo
78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
/*
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* MessagePack for C++ version switcher
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*
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* Copyright (C) 2014 KONDO Takatoshi
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MSGPACK_VERSIONING_HPP
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#define MSGPACK_VERSIONING_HPP
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#if !defined(MSGPACK_DEFAULT_API_VERSION)
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#define MSGPACK_DEFAULT_API_VERSION 1
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#endif
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#define MSGPACK_DEFAULT_API_NS MSGPACK_PP_CAT(v, MSGPACK_DEFAULT_API_VERSION)
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#if MSGPACK_DEFAULT_API_VERSION == 1
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#define MSGPACK_PP_ENABLE_NS_v1 ()
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//#elif MSGPACK_DEFAULT_API_VERSION == 2
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//#define MSGPACK_PP_ENABLE_NS_v2 ()
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#else
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#error
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#endif
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#define MSGPACK_PP_CAT(a, ...) MSGPACK_PP_PRIMITIVE_CAT(a, __VA_ARGS__)
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#define MSGPACK_PP_PRIMITIVE_CAT(a, ...) a ## __VA_ARGS__
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#define MSGPACK_PP_IIF(c) MSGPACK_PP_PRIMITIVE_CAT(MSGPACK_PP_IIF_, c)
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#define MSGPACK_PP_IIF_0(t, ...) __VA_ARGS__
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#define MSGPACK_PP_IIF_1(t, ...) t
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#define MSGPACK_PP_PROBE(x) x, 1
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#if defined(_MSC_VER)
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#define MSGPACK_PP_MSVC_VA_ARGS_WORKAROUND(define, args) define args
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#define MSGPACK_PP_CHECK(...) MSGPACK_PP_MSVC_VA_ARGS_WORKAROUND(MSGPACK_PP_CHECK_N, (__VA_ARGS__, 0))
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#define MSGPACK_PP_CHECK_N(x, n, ...) n
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#else // defined(__MSC_VER)
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#define MSGPACK_PP_CHECK(...) MSGPACK_PP_CHECK_N(__VA_ARGS__, 0)
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#define MSGPACK_PP_CHECK_N(x, n, ...) n
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#endif // defined(__MSC_VER)
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#define MSGPACK_PP_NS_ENABLED_PROBE(ns) MSGPACK_PP_NS_ENABLED_PROBE_PROXY( MSGPACK_PP_ENABLE_NS_##ns )
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#define MSGPACK_PP_NS_ENABLED_PROBE_PROXY(...) MSGPACK_PP_NS_ENABLED_PROBE_PRIMIVIE(__VA_ARGS__)
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#define MSGPACK_PP_NS_ENABLED_PROBE_PRIMIVIE(x) MSGPACK_PP_NS_ENABLED_PROBE_COMBINE_ x
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#define MSGPACK_PP_NS_ENABLED_PROBE_COMBINE_(...) MSGPACK_PP_PROBE(~)
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#define MSGPACK_PP_IS_NS_ENABLED(ns) MSGPACK_PP_CHECK(MSGPACK_PP_NS_ENABLED_PROBE(ns))
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#if __cplusplus < 201103
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#define MSGPACK_API_VERSION_NAMESPACE(ns) MSGPACK_PP_IIF(MSGPACK_PP_IS_NS_ENABLED(ns)) \
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(namespace ns{}; using namespace ns; namespace ns, \
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namespace ns)
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#else // __cplusplus < 201103
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#define MSGPACK_API_VERSION_NAMESPACE(ns) MSGPACK_PP_IIF(MSGPACK_PP_IS_NS_ENABLED(ns)) \
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(inline namespace ns, namespace ns)
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#endif // __cplusplus < 201103
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#endif // MSGPACK_VERSIONING_HPP
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