C-FAQ 어찌되었건 pointer 쓰면 정말 좋은가?

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Q: What are pointers really good for, anyway?

   

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

• dynamically-allocated arrays (see questions 6.14 and 6.16)
• generic access to several similar variables
• (simulated) by-reference function parameters (see question 4.8 and 20.1)
• 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

(Note that this is hardly a comprehensive list!)

See also question 6.8.