What's the difference between const char *p, char const *p, and char * const p?

Question

What's the difference between const char *p, char const *p, and char * const p?
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Please give me an example .. I found some answers but not so explainatory

Answer 1

1. const char *p : means p is pointer pointing to a constant char i.e. you can not change the content of the location where it is pointing but u can change the pointer itself to point to some other char.



2. char const *p, and char * const p : both are same & in this case p is a constant pointer poiting to some char location. you can change the contents of that location but u can't change the pointer to point to some other location.



hope i answered the way u wanted !!

Answer 2

Char Const Vs Const Char

Answer 3

First two const char *p and char const *p both are same i.e. points to constant character(You can change where p points, but you can’t change pointed characters using that pointer).



But char * const p is a constant pointer to a variable(i.e. you can’t change the pointer).

Answer 4

char const *p; is legal way to declare

Answer 5

hi...

const char *p:- the variable in the address is constant. u can not re-define.



char const *p : the value can be changed, u can not re-allocate the memory.

char * const p: same as previous.