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Diffstat (limited to 'include/frozen/bits/defines.h')
| -rw-r--r-- | include/frozen/bits/defines.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/include/frozen/bits/defines.h b/include/frozen/bits/defines.h new file mode 100644 index 0000000..e20f6d0 --- /dev/null +++ b/include/frozen/bits/defines.h @@ -0,0 +1,66 @@ +/* + * 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 |