char str[] = "a";
char ch = 'a';
speaking of the difference between the two, we all knowstr point to a memory space which stored [a, \0], but I want to ask whether there is a difference between str[0] and ch?
Asked
Active
Viewed 54 times
0
Sourav Ghosh
- 133,132
- 16
- 183
- 261
ijpq
- 17
- 5
-
1`str` is an array, `ch` is not. That's the only difference. – Aykhan Hagverdili Feb 04 '21 at 14:00
-
Just read the string chapter of your C programming book... – Lundin Feb 04 '21 at 14:13
-
@AyxanHaqverdili but OP asked `str[0]`. – Sourav Ghosh Feb 04 '21 at 14:15
-
`str` doesn't "point to a memory space" because `str` isn't a pointer. See: [Is an array name a pointer?](https://stackoverflow.com/questions/1641957/is-an-array-name-a-pointer) – Blastfurnace Feb 04 '21 at 14:27
-
I'll do you one better: not only is `ch == str[0]`, in fact `ch == *str` and `ch == 0[str]`... `str[0]` is just accessing the value stored in the array `str` at offset/index 0. That makes the value of type `char`, and the value `'a'` – Elias Van Ootegem Feb 04 '21 at 15:00
1 Answers
3
but I want to ask whether there is a difference between
str[0]andch?
No.
str[0] and ch, both are of type char, and hold the value 'a'. From this aspect (type and value), there is no difference.
Sourav Ghosh
- 133,132
- 16
- 183
- 261