| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| #ifndef ANDROID_HARDWARE_VERSION_MACRO_H |
| #define ANDROID_HARDWARE_VERSION_MACRO_H |
| |
| #if !defined(MAJOR_VERSION) || !defined(MINOR_VERSION) |
| #error "MAJOR_VERSION and MINOR_VERSION must be defined" |
| #endif |
| |
| /** Allows macro expansion for x and add surrounding `<>`. |
| * Is intended to be used for version dependant includes as |
| * `#include` do not macro expand if starting with < or " |
| * Example usage: |
| * #include PATH(path/to/FILE_VERSION/file) |
| * @note: uses the implementation-define "Computed Includes" feature. |
| */ |
| #define PATH(x) <x> |
| |
| #define CONCAT_3(a,b,c) a##b##c |
| #define EXPAND_CONCAT_3(a,b,c) CONCAT_3(a,b,c) |
| /** The directory name of the version: <major>.<minor> */ |
| #define FILE_VERSION EXPAND_CONCAT_3(MAJOR_VERSION,.,MINOR_VERSION) |
| |
| #define CONCAT_4(a,b,c,d) a##b##c##d |
| #define EXPAND_CONCAT_4(a,b,c,d) CONCAT_4(a,b,c,d) |
| /** The c++ namespace of the version: V<major>_<minor> */ |
| #define CPP_VERSION EXPAND_CONCAT_4(V,MAJOR_VERSION,_,MINOR_VERSION) |
| |
| #endif // ANDROID_HARDWARE_VERSION_MACRO_H |