Keywords in C are predefined or reserved words that have special meanings to the compiler. They are part of the syntax and cannot be used as identifiers in the program. Keywords are essential because they define the structure and control flow of the program, allowing programmers to write understandable and maintainable code¹².

List of Keywords in C

Here is a list of keywords in C:

• auto

• break

• case

• char

• const

• continue

• default

• do

• double

• else

• enum

• extern

• float

• for

• goto

• if

• int

• long

• register

• return

• short

• signed

• sizeof

• static

• struct

• switch

• typedef

• union

• unsigned

• void

• volatile

• while

Examples and Usage

auto

The auto keyword is the default storage class for local variables. It can only be used within a function or block.

Output:

break and continue