/* * Copyright (c) 2023 Huawei Device Co., Ltd. * 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. */ #include "nullpointer_dereference.h" #include #include #include using namespace OHOS::HiviewDFX; int TestNullPointerDereferenceCrash0() { std::shared_ptr testcase = nullptr; testcase->Print(); // may not crash testcase->PrintMemberValue(); // crash here return 0; } int TestNullPointerDereferenceCrash1() { auto testcase = std::make_shared(); testcase.reset(); testcase->Print(); // may not crash return 0; } int TestNullPointerDereferenceCrash2() { auto testcase = std::make_shared(); testcase.reset(); testcase->PrintMemberValue(); // crash here return 0; } int TestNullPointerDereferenceCrash3() { std::vector> refs; auto ref = refs.front(); // crash here if (auto sharedRef = ref.lock()) { printf("TestNullPointerDereferenceCrash3:%p:\n", sharedRef.get()); } return 0; } namespace OHOS { namespace HiviewDFX { void NullPointerDereference::Print() const { printf("NullPointerDereference::Print\n"); } void NullPointerDereference::PrintMemberValue() const { printf("NullPointerDereference::PrintMemberValue:\n"); printf("%d:\n", intTypeValue_); printf("%d:\n", intTypeValue0_); } } // namespace HiviewDFX } // namespace OHOS