1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #if defined(__cplusplus) 18 #define __BEGIN_DECLS extern "C" { 19 #define __END_DECLS } 20 #else 21 #define __BEGIN_DECLS 22 #define __END_DECLS 23 #endif 24 25 #ifndef __UNUSED 26 #define __UNUSED __attribute__((__unused__)) 27 #endif // __UNUSED 28