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