As C is a case-sensitive language, all keywords must be written in lowercase.
Keywords are predefined, reserved words in C language and each of which is associated with specific features. These words help us to use the functionality of C language. They have special meaning to the compilers.
There are total 32 keywords in C.
auto |
double |
int |
struct |
break |
else |
long |
switch |
case |
enum |
register |
typedef |
char |
extern |
return |
union |
continue |
for |
signed |
void |
do |
if |
static |
while |
default |
goto |
sizeof |
volatile |
const |
float |
short |
unsigned |