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