forthespada
【勘误】
https://interviewguide.cn/notes/03-hunting_job/02-interview/01-01-02-basic.html#_23%E3%80%81define%E5%AE%8F%E5%AE%9A%E4%B9%89%E5%92%8Cconst%E7%9A%84%E5%8C%BA%E5%88%AB
此处应该为代码段/代码区有多份拷贝
https://interviewguide.cn/notes/03-hunting_job/02-interview/01-01-03-basic.html#_60%E3%80%81c-%E4%B8%AD%E6%96%B0%E5%A2%9E%E4%BA%86string-%E5%AE%83%E4%B8%8Ec%E8%AF%AD%E8%A8%80%E4%B8%AD%E7%9A%84-char-%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB%E5%90%97-%E5%AE%83%E6%98%AF%E5%A6%82%E4%BD%95%E5%AE%9E%E7%8E%B0%E7%9A%84
此处应为2*n
https://interviewguide.cn/notes/03-hunting_job/02-interview/01-03-01-C++11.html#_3%E3%80%81c-%E4%B8%ADnull%E5%92%8Cnullptr%E5%8C%BA%E5%88%AB
从实际定义来看
#ifdef __cplusplus
#define NULL 0
#else
#define NULL ((void *)0)
#endif
应该是在C中NULL被定义为(void*)0，在C++中，NULL被定义为整数0
https://interviewguide.cn/notes/03-hunting_job/02-interview/01-03-01-C++11.html#_4%E3%80%81%E6%99%BA%E8%83%BD%E6%8C%87%E9%92%88%E7%9A%84%E5%8E%9F%E7%90%86%E3%80%81%E5%B8%B8%E7%94%A8%E7%9A%84%E6%99%BA%E8%83%BD%E6%8C%87%E9%92%88%E5%8F%8A%E5%AE%9E%E7%8E%B0
“引用计数器跟踪共有多少个类对象共享同一指针”是不是写反了，另外就是"构造函数减少引用计数"不太理解，倾向于是此处笔误。
