Why do we use pointers instead of local variables? [duplicate]

Question

I don't understand the difference between using a pointer and using a normal variable. I'm learning linked lists in class so the use of pointers seems more straightforward since pointers are used to go to the next node in the list, but I don't understand its more basic uses and I'm feeling stressed as it is something I should already understand but don't.

take a look at this, it might help clear your head a bit: stackoverflow.com/questions/162941/why-use-pointers — Natan Streppel
– Natan Streppel, Commented Sep 9, 2013 at 16:48
The question makes no sense. Pointers are ordinary variables, meaning that they can easily be local variables. The question contraposes "pointers" and "local variables" as something mutually exclusive. — AnT stands with Russia
– AnT stands with Russia, Commented Sep 9, 2013 at 16:51
If you don't understand the difference between a pointer and an int variable, for example, then you don't understand pointers yet. I suggest you take some further readings to make it clear. — Natan Streppel
– Natan Streppel, Commented Sep 9, 2013 at 16:53
We use pointers when we need to point to something. That's what they do. — Mike Seymour
– Mike Seymour, Commented Sep 9, 2013 at 17:02

Paul Evans · Accepted Answer · 2013-09-09 16:48:56Z

0

The pointer is in itself just a "normal" variable that just so happens to store a level of indirection to another variable.

answered Sep 9, 2013 at 16:48

Paul Evans

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