| /* |
| * Copyright (c) 2024 Project CHIP Authors |
| * |
| * Licensed 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. |
| */ |
| |
| #pragma once |
| |
| // CHIP_HAVE_RTTI: Is C++ RTTI enabled? |
| #if defined(__clang__) |
| #define CHIP_HAVE_RTTI __has_feature(cxx_rtti) |
| #elif defined(__GNUC__) && defined(__GXX_RTTI) |
| #define CHIP_HAVE_RTTI 1 |
| #else |
| #define CHIP_HAVE_RTTI 0 |
| #endif |
| |
| // CHIP_CPP20(x): expands to x on C++20 and later, nothing on C++17. |
| #if __cplusplus >= 202002L |
| #define CHIP_CPP20(...) __VA_ARGS__ |
| #else |
| #define CHIP_CPP20(...) |
| #endif |
| |
| // Expands to [[no_unique_address]] on C++20, nothing on C++17. |
| #define CHIP_NO_UNIQUE_ADDRESS CHIP_CPP20([[no_unique_address]]) |
