关于const char*, char const* and char *const 等的区别

1 关于const char*, char const* and char *const 等的区别

2

3 助记方法：

4 把一个声明从右向左读

5 比如：

6 char * const cp;

7 //cp is a const pointer to char

8

9 const char * cp;

10 //cp is a pointer to const char;

11 规则：

12 //从右到左读：

13 // * 读成 pointer to

14 // ** 读成 (a) pointer to (a) pointer to

15 // * const 读成 const pointer to

16 再比如：

17 char ** cpp; //cpp is a pointer to ( a pointer to char )

18

19 const char ** cpp; // cpp is a pointer to ( a pointer to const char )

20

21 char * const * cpp; //cpp is a pointer to const pointer to char

22

23 const char * const * cpp; //cpp is pointer to const pointer to const char

24

25 char ** const cpp; //cpp is const pointer to pointer to char

26

27 char * const * const cpp;//cpp is const pointer to const pointer to char

28

29 const char * const * const cpp; //cpp is const pointer to const pointer to c

onst char

30

31

32 //×××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××

33 //关键：

34 //只要记住：

35 //（1）把声明从右到左读

36 //（2）* 读成 pointer to

37 //×××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××