Keywords in C programming Language:
There are 31 Keywords/Reserved words in C programming language. 
The following list shows the reserved words in C. These reserved words may not be used as constant or variable or any other identifier names.
| auto | else | long | switch | 
| break | enum | register | typedef | 
| case | extern | return | union | 
| char | float | short | unsigned | 
| const | for | signed | void | 
| continue | goto | sizeof | volatile | 
| default | if | static | while | 
| do | int | struct | _Packed | 
| double | 
Keywords in C programming language must not be used as a variable name or as a constant.
If you do so, then you will get an error in your program.
If you do so, then you will get an error in your program.
