1 /** 2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #include <cstddef> 17 #include <cstdint> 18 19 #ifndef PANDA_VERIFICATION_UTIL_STRUCT_FIELD_H 20 #define PANDA_VERIFICATION_UTIL_STRUCT_FIELD_H 21 22 namespace panda::verifier { 23 template <typename S, typename T> 24 struct struct_field { 25 size_t offset; struct_fieldstruct_field26 struct_field(size_t p_offst) : offset {p_offst} {} ofstruct_field27 T &of(S &s) const 28 { 29 return *reinterpret_cast<T *>(reinterpret_cast<uintptr_t>(&s) + offset); 30 } 31 }; 32 } // namespace panda::verifier 33 34 #endif // PANDA_VERIFICATION_UTIL_STRUCT_FIELD_H 35