Keywords
Keywords are the vocabulary of C. Because they are special to C, you can't use them for variable names . Many of these keywords specify various types, such as int . Others, such as if , are used to control the order in which program statements are executed. In the following list of C keywords, boldface indicates keywords added by the ANSI C standard, and italics indicate new keywords proposed by the C9X committee for the next version of the standard.
Table ANSI C Keywords
auto | double | inline | static |
break | else | int | struct |
case | enum | long | switch |
char | extern | register | typedef |
complex | float | restrict | union |
const | for | return | unsigned |
continue | goto | short | void |
default | if | signed | volatile |
do | imaginary | sizeof | while |