1 /* 2 * Copyright (C) 2014 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 #ifndef MACROS_H 17 #define MACROS_H 18 19 #include <type_traits> 20 21 #define PREVENT_COPY_AND_ASSIGN(Type) \ 22 private: \ 23 Type(const Type&) = delete; \ 24 void operator=(const Type&) = delete 25 26 #define HASHABLE_TYPE(Type) \ 27 bool operator==(const Type& other) const; \ 28 hash_t hash() const; \ 29 bool operator!=(const Type& other) const { return !(*this == other); } \ 30 friend inline hash_t hash_type(const Type& entry) { return entry.hash(); } 31 32 #define REQUIRE_COMPATIBLE_LAYOUT(Type) \ 33 static_assert(std::is_standard_layout<Type>::value, \ 34 #Type " must have standard layout") 35 36 #define WARN_UNUSED_RESULT \ 37 __attribute__((warn_unused_result)) 38 39 #endif /* MACROS_H */ 40