Keyword in C language

Key phrase in C language

 

Key phrase are reserved phrase which are pridefine in ‘c’ library. They’ll’t be modified or modified.

There are whole 32 key phrases in normal ‘c’ and all key phrases have to be written in small case letter(a,b,c…..z)

int	char	float	double
void	signed	unsigned	quick
if	lengthy	else	swap
case	default	break	proceed
goto	for	whereas	do
return	auto	static	extern
register	struct	union	enum
const	risky	sizeof	typedef

---

Identifier

 

It’s the identify of variable, label, array, pointer, operate or any person outlined merchandise

There are specific guidelines relating to idenifier. These rule are as fllows:-

1. An Indetifier have to be significant.
2. It’s mixture of alphabets/letter(capital in addition to small),digits or underscore ( _ ).
3. First character have to be an Alphabets or Underscore.
4. Key phrases should not allowed for use as Identifiers.
5. No particular characters, reminiscent of semicolon, interval, whitespaces, slash or comma are permitted for use in or as Identifier.
6. No white house are allowed. EX-basic wage(Incorrect), basic_salary(True)
7. It could actually have mmaximum 31 or 32 character are important. Ex:- college students roll and college students marker are identical.

---

In C language characters are grouped into the next catagories,

1. Letters(all alphabets a to z & A to Z).
2. Digits (all digits zero to 9).
3. Particular characters, ( reminiscent of colon :, semicolon ;, interval ., underscore _, ampersand & and so on).
4. White areas.