1. What is keyword?
⇒ There are certain words reserved for doing specific task, these words are known as reserved word or keywords. These words are predefined and always written in lower case or small letter.
These keywords can’t be used as a variable name as it assigned with fixed meaning. Some examples are int, short, signed, unsigned, default, volatile, float, long, double, break, continue, typedef, static, do, for, union, return, while, do, extern, register, enum, case, goto, struct, char, auto, const etc.
Below are the reserved keywords in C ⇓
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 |
