C Interview Questions and Answers


What are pointers really good for, anyway?

They're good for lots of things, such as:

* dynamically-allocated arrays

* generic access to several similar variables

* (simulated) by-reference function parameters

* malloc'ed data structures of all kinds, especially trees and linked lists

* walking over arrays (for example, while parsing strings)

* efficient, by-reference ``copies'' of arrays and structures, especially
as function parameters

Posted by:Richards