I am having problem understanding the use of asterisk in C

Asked Jun 25 '23 at 16:41

Active Jun 25 '23 at 16:53

Viewed 36 times

Sometimes it is used in this way like int * ptr which i know means that we are creating a pointer but in some other cases it is used in this way int *ptr and also in this way int* ptr.

Can you plz explain me what's happening in the last two ways.

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edited Jun 25 '23 at 16:53

Andreas Wenzel

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asked Jun 25 '23 at 16:41

Harshit Singh

They're the same thing; defining `x` as a variable that's a pointer to int. – Shawn Jun 25 '23 at 16:43
It is the same. Both expressions create a pointer, you have to take into account that spaces are ignore by `C` compiler. – Jose Manuel de Frutos Jun 25 '23 at 16:43
they are all same – rkosegi Jun 25 '23 at 16:43
@Shawn you mean both of them are used as a dereference. – Harshit Singh Jun 25 '23 at 16:45
No, no dereferencing. They're just variable definitions. – Shawn Jun 25 '23 at 16:46
@Shawn ahh cool, Thanks! – Harshit Singh Jun 25 '23 at 16:47
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C ignores the spaces in those examples. So `int *x`, `int* x`, and `int*x` are all equivalent. The most logical way to group it matches grouping of the syntax, i.e. `int *x`. Some beginners like `int* x`, but they're missing the fact that `int* x, y` only makes `x` a pointer, while `y` is an `int`. That's why `int *x, y` makes more sense. – Tom Karzes Jun 25 '23 at 17:26

I am having problem understanding the use of asterisk in C

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