what are pointers

[nitin daharwal]

what is a pointer in C?
how to use pointers ?
where pointers are used?
how to use pointers with array,linked list,stack and structures?

[adarshshukla]

pointers are the technique to directly access and manipulate the data storage area. pointers can be used to create dynamic arrays which can store the data without any bounds or limit of the space requried without wasting the memory by predefining the memory size as in arrays.
pointers can be used for creating stacks, linkedlist, dynamic arrays, structures, trees, b-tree, etc.