New delete 与malloc free 的联系与区别

原創 zyvscc 2020-07-07 19:13

都是在堆（heap）上进行动态的内存操作。

用malloc函数需要指定内存分配的字节数并且不能初始化对象；    new会自动调用对象的构造函数。

free不会调用对象的destructor；                                                            delete会调用对象的destructor

 

發表評論
所有評論
還沒有人評論，想成為第一個評論的人麼? 請在上方評論欄輸入並且點擊發布.
相關文章

Android C++系列：JNI调用时的异常处理

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"typ

轻口味 2021-11-19 10:03:53

国内最大的C++软件项目之一，WPS的“自守”之道

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragr

罗燕珊 2021-10-28 14:23:59

谈 C++17 里的 Memento 模式

{"type":"doc","content":[{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null

hedzr 2021-10-18 14:13:51

谈 C++17 里的 State 模式之二

{"type":"doc","content":[{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null

hedzr 2021-10-12 21:03:51

英特尔最新版C/C++编译器采用LLVM架构，性能提升明显

{"type":"doc","content":[{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null

James R Reinders 2021-09-17 10:48:52

C++实用指南

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"typ

Bartlomiej Filipek 2021-07-22 10:03:58

编程语言巅峰之战，谁才是真正的王者？| InfoQ编程语言排行榜

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"typ

田晓旭 2021-07-20 11:43:51

SpaceX龙飞船性能要求严苛，软件开发存挑战

{"type":"doc","content":[{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null

凌敏 2021-05-14 13:43:55

纵观20年间国外码农的薪酬变化：涨幅下降，初级编码岗大幅消失

{"type":"doc","content":[{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null

NICOLE KOW 2021-03-22 18:35:29

如果编程语言是《权力的游戏》中的角色？（上）

{"type":"doc","content":[{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null

Sajid Lhessani 2021-03-22 18:35:23

InfoQ 编程语言 2 月排行榜，更好的投票活动来了

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"typ

InfoQ 中文站 2021-03-22 18:34:58

InfoQ 编程语言1月排行榜：邀你投票

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"typ

InfoQ 中文站 2021-01-21 17:28:56

2021年最值得学习的10种编程语言

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"typ

Statistics and Data 2021-01-19 14:13:58

我是如何爱上 Julia 编程语言的？

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"typ

Emmett Boudreau 2020-12-29 14:24:00

2020年 InfoQ 最受欢迎的文章排行榜 | 编程语言篇

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"typ

Tina 2020-12-27 09:03:56