67 lines
2.2 KiB
C
67 lines
2.2 KiB
C
/*
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* Frozen
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* Copyright 2016 QuarksLab
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*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#ifndef FROZEN_LETITGO_DEFINES_H
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#define FROZEN_LETITGO_DEFINES_H
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#if defined(_MSVC_LANG) && !(defined(__EDG__) && defined(__clang__)) // TRANSITION, VSO#273681
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#define FROZEN_LETITGO_IS_MSVC
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#endif
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// Code taken from https://stackoverflow.com/questions/43639122/which-values-can-msvc-lang-have
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#if defined(FROZEN_LETITGO_IS_MSVC)
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#if _MSVC_LANG > 201402
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#define FROZEN_LETITGO_HAS_CXX17 1
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#else /* _MSVC_LANG > 201402 */
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#define FROZEN_LETITGO_HAS_CXX17 0
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#endif /* _MSVC_LANG > 201402 */
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#else /* _MSVC_LANG etc. */
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#if __cplusplus > 201402
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#define FROZEN_LETITGO_HAS_CXX17 1
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#else /* __cplusplus > 201402 */
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#define FROZEN_LETITGO_HAS_CXX17 0
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#endif /* __cplusplus > 201402 */
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#endif /* _MSVC_LANG etc. */
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// End if taken code
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#if FROZEN_LETITGO_HAS_CXX17 == 1 && defined(FROZEN_LETITGO_IS_MSVC)
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#define FROZEN_LETITGO_HAS_STRING_VIEW // We assume Visual Studio always has string_view in C++17
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#else
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#if FROZEN_LETITGO_HAS_CXX17 == 1 && __has_include(<string_view>)
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#define FROZEN_LETITGO_HAS_STRING_VIEW
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#endif
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#endif
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#ifdef __cpp_char8_t
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#define FROZEN_LETITGO_HAS_CHAR8T
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#endif
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#if __cpp_deduction_guides >= 201703L
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#define FROZEN_LETITGO_HAS_DEDUCTION_GUIDES
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#endif
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#if __cpp_lib_constexpr_string >= 201907L
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#define FROZEN_LETITGO_HAS_CONSTEXPR_STRING
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#endif
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#endif // FROZEN_LETITGO_DEFINES_H
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