1 /* 2 * Copyright (C) 2020 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 #include <cstdint> 17 #include <cstdlib> 18 #include <iostream> 19 #include <memory> 20 21 class Bar { 22 public: 23 uint16_t b = 2; 24 }; 25 26 class Foo { 27 public: 28 uint8_t a = 1; 29 Bar *bar = nullptr; 30 }; 31 main()32int main() { 33 { 34 Foo *foo = new Foo(); 35 Bar *bar = new Bar(); 36 foo->bar = bar; 37 delete foo; 38 delete bar; 39 } 40 { 41 std::unique_ptr<Foo> foo = std::make_unique<Foo>(); 42 std::unique_ptr<Bar> bar = std::make_unique<Bar>(); 43 foo->bar = bar.get(); 44 foo->bar->b++; 45 } 46 { 47 std::shared_ptr<Foo> foo = std::make_shared<Foo>(); 48 std::shared_ptr<Bar> bar = std::make_shared<Bar>(); 49 foo->bar = bar.get(); 50 foo->bar->b++; 51 } 52 return 0; 53 }