Keywords in C

Keywords

Keywords are the system defined identifiers.
All keywords have fixed meanings that do not change.
White spaces are not allowed in keywords.
Keyword may not be used as an identifiers.
It is strongly recommended that keywords should be in lower case letters.

There are totally 32(Thirty Two) keywords used in a C programming.

int	float	double	long
short	signed	unsigned	const
if	else	switch	break
default	do	while	for
register	extern	static	struct
typedef	enum	return	sizeof
goto	union	auto	case
void	char	continue	volatile

Escape Sequence Characters (Backslash Character Constants) in C

C supports some special escape sequence characters that are used to do special tasks.These are also called as 'Backslash characters'.

Some of the escape sequence characters are as follow:

Character Constant	Meaning
\n	New line (Line break)
\b	Backspace
\t	Horizontal Tab
\f	Form feed
\a	Alert (alerts a bell)
\r	Carriage Return
\v	Vertical Tab
\?	Question Mark
\'	Single Quote
\''	Double Quote
\\	Backslash
\0	Null